Cape Cod - Detailed step-by-step

Standardize, clean and wrangle Water Quality Portal data in Cape Cod into more analytic-ready formats using the harmonize_wq package

US EPA’s Water Quality Portal (WQP) aggregates water quality, biological, and physical data provided by many organizations and has become an essential resource with tools to query and retrieval data using python or R. Given the variety of data and variety of data originators, using the data in analysis often requires data cleaning to ensure it meets the required quality standards and data wrangling to get it in a more analytic-ready format. Recognizing the definition of analysis-ready varies depending on the analysis, the harmonixe_wq package is intended to be a flexible water quality specific framework to help:

  • Identify differences in data units (including speciation and basis)

  • Identify differences in sampling or analytic methods

  • Resolve data errors using transparent assumptions

  • Reduce data to the columns that are most commonly needed

  • Transform data from long to wide format

Domain experts must decide what data meets their quality standards for data comparability and any thresholds for acceptance or rejection.

Detailed step-by-step workflow

This example workflow takes a deeper dive into some of the expanded functionality to examine results for different water quality parameters in Cape Cod

Install and import the required libraries

[1]:
import sys
#! python -m pip uninstall harmonize-wq --yes
# Use pip to install the package from pypi or the latest from github
#!{sys.executable} -m pip install harmonize-wq
# For latest dev version
#!{sys.executable} -m pip install git+https://github.com/USEPA/harmonize-wq.git
[2]:
import dataretrieval.wqp as wqp
from harmonize_wq import wrangle
from harmonize_wq import location
from harmonize_wq import harmonize
from harmonize_wq import visualize
from harmonize_wq import clean

Download location data using dataretrieval

[3]:
# Read geometry for Area of Interest from geojson file url and plot
aoi_url = 'https://github.com/jbousquin/test_notebook/raw/main/temperature_data/NewEngland.geojson'
aoi_gdf = wrangle.as_gdf(aoi_url)  # Already 4326 standard
aoi_gdf.plot()
[3]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_9_1.png
[4]:
# Build query with characteristicNames and the AOI extent
query = {'characteristicName': ['Phosphorus',
                                'Temperature, water',
                                'Depth, Secchi disk depth',
                                'Dissolved oxygen (DO)',
                                'Salinity',
                                'pH',
                                'Nitrogen',
                                'Conductivity',
                                'Organic carbon',
                                'Chlorophyll a',
                                'Turbidity',
                                'Sediment',
                                'Fecal Coliform',
                                'Escherichia coli']}
query['bBox'] = wrangle.get_bounding_box(aoi_gdf)
[5]:
# Query stations (can be slow)
stations, site_md = wqp.what_sites(**query)
[6]:
# Rows and columns for results
stations.shape
[6]:
(11286, 37)
[7]:
# First 5 rows
stations.head()
[7]:
OrganizationIdentifier OrganizationFormalName MonitoringLocationIdentifier MonitoringLocationName MonitoringLocationTypeName MonitoringLocationDescriptionText HUCEightDigitCode DrainageAreaMeasure/MeasureValue DrainageAreaMeasure/MeasureUnitCode ContributingDrainageAreaMeasure/MeasureValue ... AquiferName LocalAqfrName FormationTypeText AquiferTypeName ConstructionDateText WellDepthMeasure/MeasureValue WellDepthMeasure/MeasureUnitCode WellHoleDepthMeasure/MeasureValue WellHoleDepthMeasure/MeasureUnitCode ProviderName
0 USGS-MA USGS Massachusetts Water Science Center USGS-010965305 MERRIMACK R NR TYNGSBOROUGH BRIDGE TYNGSBOROUG... Stream NaN 1070006.0 4070.00 sq mi NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NWIS
1 USGS-MA USGS Massachusetts Water Science Center USGS-01096544 STONY BROOK AT SCHOOL STREET AT CHELMSFORD, MA Stream NaN 1070006.0 41.57 sq mi NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NWIS
2 USGS-MA USGS Massachusetts Water Science Center USGS-01096546 STONY BROOK AT CHELMSFORD, MA Stream NaN 1070006.0 43.60 sq mi NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NWIS
3 USGS-MA USGS Massachusetts Water Science Center USGS-01096548 STONY BROOK AT N CHELMSFORD, MA Stream NaN 1070006.0 NaN NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NWIS
4 USGS-MA USGS Massachusetts Water Science Center USGS-01096550 MERRIMACK RIVER ABOVE LOWELL, MA Stream NaN 1070006.0 3900.00 sq mi 3900.0 ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NWIS

5 rows × 37 columns

[8]:
# Columns used for an example row
stations.iloc[0][['HorizontalCoordinateReferenceSystemDatumName', 'LatitudeMeasure', 'LongitudeMeasure']]
[8]:
HorizontalCoordinateReferenceSystemDatumName        NAD83
LatitudeMeasure                                 42.677389
LongitudeMeasure                               -71.421056
Name: 0, dtype: object
[9]:
# Harmonize location datums to 4326 (Note we keep intermediate columns using intermediate_columns=True)
stations_gdf = location.harmonize_locations(stations, outEPSG=4326, intermediate_columns=True)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/clean.py:356: FutureWarning: Logical ops (and, or, xor) between Pandas objects and dtype-less sequences (e.g. list, tuple) are deprecated and will raise in a future version. Wrap the object in a Series, Index, or np.array before operating instead.
  cond_notna = mask & (df_out["QA_flag"].notna())  # Mask cond and not NA
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/clean.py:360: FutureWarning: Logical ops (and, or, xor) between Pandas objects and dtype-less sequences (e.g. list, tuple) are deprecated and will raise in a future version. Wrap the object in a Series, Index, or np.array before operating instead.
  df_out.loc[mask & (df_out["QA_flag"].isna()), "QA_flag"] = flag
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/clean.py:360: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value 'LatitudeMeasure: Imprecise: lessthan3decimaldigits' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[mask & (df_out["QA_flag"].isna()), "QA_flag"] = flag
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/clean.py:356: FutureWarning: Logical ops (and, or, xor) between Pandas objects and dtype-less sequences (e.g. list, tuple) are deprecated and will raise in a future version. Wrap the object in a Series, Index, or np.array before operating instead.
  cond_notna = mask & (df_out["QA_flag"].notna())  # Mask cond and not NA
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/clean.py:360: FutureWarning: Logical ops (and, or, xor) between Pandas objects and dtype-less sequences (e.g. list, tuple) are deprecated and will raise in a future version. Wrap the object in a Series, Index, or np.array before operating instead.
  df_out.loc[mask & (df_out["QA_flag"].isna()), "QA_flag"] = flag
[10]:
# Every function has a dostring to help understand input/output and what it does
location.harmonize_locations?
[11]:
# Rows and columns for results after running the function (5 new columns, only 2 new if intermediate_columns=False)
stations_gdf.shape
[11]:
(11286, 42)
[12]:
# Example results for the new columns
stations_gdf.iloc[0][['geom_orig', 'EPSG', 'QA_flag', 'geom', 'geometry']]
[12]:
geom_orig         (-71.4210556, 42.67738889)
EPSG                                  4269.0
QA_flag                                  NaN
geom         POINT (-71.4210556 42.67738889)
geometry     POINT (-71.4210556 42.67738889)
Name: 0, dtype: object
[13]:
# geom and geometry look the same but geometry is a special datatype
stations_gdf['geometry'].dtype
[13]:
<geopandas.array.GeometryDtype at 0x7f8b19cf2b80>
[14]:
# Look at the different QA_flag flags that have been assigned,
# e.g., for bad datums or limited decimal precision
set(stations_gdf.loc[stations_gdf['QA_flag'].notna()]['QA_flag'])
[14]:
{'HorizontalCoordinateReferenceSystemDatumName: Bad datum OTHER, EPSG:4326 assumed',
 'HorizontalCoordinateReferenceSystemDatumName: Bad datum UNKWN, EPSG:4326 assumed',
 'LatitudeMeasure: Imprecise: lessthan3decimaldigits',
 'LatitudeMeasure: Imprecise: lessthan3decimaldigits; LongitudeMeasure: Imprecise: lessthan3decimaldigits',
 'LongitudeMeasure: Imprecise: lessthan3decimaldigits'}
[15]:
# Map it
stations_gdf.plot()
[15]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_21_1.png
[16]:
# Clip to area of interest
stations_clipped = wrangle.clip_stations(stations_gdf, aoi_gdf)
[17]:
# Map it
stations_clipped.plot()
[17]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_23_1.png
[18]:
# How many stations now?
len(stations_clipped)
[18]:
1880
[19]:
# To save the results to a shapefile
#import os
#path = ''  #specify the path (folder/directory) to save it to
#stations_clipped.to_file(os.path.join(path,'CapeCod_stations.shp'))

Retrieve Characteristic Data

[20]:
# Now query for results
query['dataProfile'] = 'narrowResult'
res_narrow, md_narrow = wqp.get_results(**query)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/dataretrieval/wqp.py:153: DtypeWarning: Columns (8,10,13,15,17,19,20,21,22,23,28,31,33,34,36,38,60,63,64,65,66,67,68,69,70,71,72) have mixed types. Specify dtype option on import or set low_memory=False.
  df = pd.read_csv(StringIO(response.text), delimiter=",")
[21]:
df = res_narrow
df
[21]:
OrganizationIdentifier OrganizationFormalName ActivityIdentifier ActivityStartDate ActivityStartTime/Time ActivityStartTime/TimeZoneCode MonitoringLocationIdentifier ResultIdentifier DataLoggerLine ResultDetectionConditionText ... AnalysisEndTime/TimeZoneCode ResultLaboratoryCommentCode ResultLaboratoryCommentText ResultDetectionQuantitationLimitUrl LaboratoryAccreditationIndicator LaboratoryAccreditationAuthorityName TaxonomistAccreditationIndicator TaxonomistAccreditationAuthorityName LabSamplePreparationUrl ProviderName
0 BRC Blackstone River Coalition (Volunteer) BRC-C-02-02-020:20131012040800:FM:0.2083333333... 2013-10-12 04:08:00 EST BRC-C-02-02-020 STORET-1039097035 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN STORET
1 OARS OARS - For the Assabet Sudbury & Concord River... OARS-CND-161:20130818:0651:FM:1 2013-08-18 06:51:00 EDT OARS-CND-161 STORET-838568413 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN STORET
2 OARS OARS - For the Assabet Sudbury & Concord River... OARS-SUD-064:20130721:0610:FM:1 2013-07-21 06:10:00 EDT OARS-SUD-064 STORET-838568309 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN STORET
3 CRWA Charles River Watershed Association (Massachus... CRWA-CYN20130809ROBTemp01 2013-08-09 11:14:33 EST CRWA-ROB STORET-591631481 130809111433.0 NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN STORET
4 WTGHA Wompanoag Tribe of Gay Head Aquinnah (Tribal) WTGHA-m41:20131017:FM:B 2013-10-17 NaN NaN WTGHA-M41 STORET-1041401688 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN STORET
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...
569749 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19560816_731708 1956-08-16 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598866 NaN NaN ... NaN NaN NaN https://www.waterqualitydata.us/data/providers... NaN NaN NaN NaN NaN STORET
569750 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19560616_731704 1956-06-16 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598862 NaN NaN ... NaN NaN NaN https://www.waterqualitydata.us/data/providers... NaN NaN NaN NaN NaN STORET
569751 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19560701_731705 1956-07-01 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598863 NaN NaN ... NaN NaN NaN https://www.waterqualitydata.us/data/providers... NaN NaN NaN NaN NaN STORET
569752 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_GREAT_W_19550816_731703 1955-08-16 NaN NaN 11NPSWRD_WQX-CACO_GREAT_W STORET-740649462 NaN NaN ... NaN NaN NaN https://www.waterqualitydata.us/data/providers... NaN NaN NaN NaN NaN STORET
569753 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_SLOUGH_19520816_731702 1952-08-16 NaN NaN 11NPSWRD_WQX-CACO_SLOUGH STORET-740745800 NaN Not Detected ... NaN NaN NaN https://www.waterqualitydata.us/data/providers... NaN NaN NaN NaN NaN STORET

569754 rows × 78 columns

[22]:
# Map number of usable results at each station
gdf_count = visualize.map_counts(df, stations_clipped)
legend_kwds = {"fmt": "{:.0f}", 'bbox_to_anchor':(1, 0.75)}
gdf_count.plot(column='cnt', cmap='Blues', legend=True, scheme='quantiles', legend_kwds=legend_kwds)
[22]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_29_1.png

Harmonize Characteristic Results

Two options for functions to harmonize characteristics: harmonize_all() or harmonize_generic(). harmonize_all runs functions on all characteristics and lets you specify how to handle errors harmonize_generic runs functions only on the characteristic specified with char_val and lets you also choose output units, to keep intermediate columns and to do a quick report summarizing changes.

[23]:
# See Documentation
#harmonize_WQP.harmonize_all?
#harmonize_WQP.harmonize?

secchi disk depth

[24]:
# Each harmonize function has optional params, e.g., char_val is the characticName column value to use so we can send the entire df.
# Optional params: units='m', char_val='Depth, Secchi disk depth', out_col='Secchi', report=False)

# We start by demonstrating on secchi disk depth (units default to m, keep intermediate fields, see report)
df = harmonize.harmonize(df, "Depth, Secchi disk depth", errors="ignore", intermediate_columns=True, report=True)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/clean.py:360: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value 'ResultMeasureValue: missing (NaN) result' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[mask & (df_out["QA_flag"].isna()), "QA_flag"] = flag
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: '%' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(3.25, 'meter')> <Quantity(4.25, 'meter')>
 <Quantity(3.5, 'meter')> ... <Quantity(17.0, 'meter')>
 <Quantity(16.0, 'meter')> <Quantity(7.8, 'meter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    8961.000000
mean       -5.920774
std       298.744632
min     -9999.000000
25%         1.400000
50%         2.000000
75%         3.962400
max        27.000000
dtype: float64
Unusable results: 2134
Usable results with inferred units: 8
Results outside threshold (0.0 to 1786.54702135132): 16
../_images/notebooks_Harmonize_CapeCod_Detailed_34_2.png

The threshold is based on standard deviations and is currently only used in the histogram.

[25]:
# Look at a table of just Secchi results and focus on subset of columns
cols = ['MonitoringLocationIdentifier', 'ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Units']
sechi_results = df.loc[df['CharacteristicName']=='Depth, Secchi disk depth', cols + ['Secchi']]
sechi_results
[25]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Units Secchi
48 11113300-GRTKINSD 3.25 m NaN m 3.25 meter
179 11113300-BEADERD 4.25 m NaN m 4.25 meter
317 11113300-ANGSDND 3.5 m NaN m 3.5 meter
698 11113300-GRTKINSD 2.25 m NaN m 2.25 meter
740 11113300-GRTKINSD 4.75 m NaN m 4.75 meter
... ... ... ... ... ... ...
569749 11NPSWRD_WQX-CACO_DUCK_W 10.0 m NaN m 10.0 meter
569750 11NPSWRD_WQX-CACO_DUCK_W 17.0 m NaN m 17.0 meter
569751 11NPSWRD_WQX-CACO_DUCK_W 16.0 m NaN m 16.0 meter
569752 11NPSWRD_WQX-CACO_GREAT_W 7.8 m NaN m 7.8 meter
569753 11NPSWRD_WQX-CACO_SLOUGH NaN m ResultMeasureValue: missing (NaN) result m NaN

11095 rows × 6 columns

[26]:
# Look at unusable(NAN) results
sechi_results.loc[df['Secchi'].isna()]
[26]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Units Secchi
25127 NARS_WQX-NLA12_MA-102 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... m NaN
38414 11113300-ISLDERD =4.25 m ResultMeasureValue: "=4.25" result cannot be used m NaN
38813 11113300-ROBHUDD =2.25 m ResultMeasureValue: "=2.25" result cannot be used m NaN
39063 11113300-ROBHUDD =3 m ResultMeasureValue: "=3" result cannot be used m NaN
39483 11113300-LONDVLD =2.675 m ResultMeasureValue: "=2.675" result cannot be ... m NaN
... ... ... ... ... ... ...
486665 11113300-DARLITD NaN NaN ResultMeasureValue: missing (NaN) result; Resu... m NaN
493734 11113300-WORSALD NaN NaN ResultMeasureValue: missing (NaN) result; Resu... m NaN
496626 11113300-DARLITD =1.1 m ResultMeasureValue: "=1.1" result cannot be used m NaN
496662 11113300-DARLITD =1.5 m ResultMeasureValue: "=1.5" result cannot be used m NaN
569753 11NPSWRD_WQX-CACO_SLOUGH NaN m ResultMeasureValue: missing (NaN) result m NaN

2134 rows × 6 columns

[27]:
# look at the QA flag for first row from above
list(sechi_results.loc[df['Secchi'].isna()]['QA_flag'])[0]
[27]:
'ResultMeasureValue: missing (NaN) result; ResultMeasure/MeasureUnitCode: MISSING UNITS, m assumed'
[28]:
# All cases where there was a QA flag
sechi_results.loc[df['QA_flag'].notna()]
[28]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Units Secchi
25127 NARS_WQX-NLA12_MA-102 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... m NaN
38414 11113300-ISLDERD =4.25 m ResultMeasureValue: "=4.25" result cannot be used m NaN
38813 11113300-ROBHUDD =2.25 m ResultMeasureValue: "=2.25" result cannot be used m NaN
39063 11113300-ROBHUDD =3 m ResultMeasureValue: "=3" result cannot be used m NaN
39483 11113300-LONDVLD =2.675 m ResultMeasureValue: "=2.675" result cannot be ... m NaN
... ... ... ... ... ... ...
486665 11113300-DARLITD NaN NaN ResultMeasureValue: missing (NaN) result; Resu... m NaN
493734 11113300-WORSALD NaN NaN ResultMeasureValue: missing (NaN) result; Resu... m NaN
496626 11113300-DARLITD =1.1 m ResultMeasureValue: "=1.1" result cannot be used m NaN
496662 11113300-DARLITD =1.5 m ResultMeasureValue: "=1.5" result cannot be used m NaN
569753 11NPSWRD_WQX-CACO_SLOUGH NaN m ResultMeasureValue: missing (NaN) result m NaN

1176 rows × 6 columns

If both value and unit are missing nothing can be done, a unitless (NaN) value is assumed as to be in default units but a QA_flag is added

[29]:
# Aggregate secchi data by station
visualize.station_summary(sechi_results, 'Secchi')
[29]:
MonitoringLocationIdentifier cnt mean
0 11113300-ANGSDND 45 3.765500
1 11113300-ARLSALD 3 3.400000
2 11113300-BARKIND 1 2.100000
3 11113300-BAYKIND 1 1.900000
4 11113300-BEADERD 46 3.666304
... ... ... ...
987 WWMD_VA-SH1 2 1.500000
988 WWMD_VA-SH2 2 1.800000
989 WWMD_VA-SR6A 1 0.500000
990 WWMD_VA-WF2 1 0.600000
991 WWMD_VA-WR5 1 2.000000

992 rows × 3 columns

[30]:
# Map number of usable results at each station
gdf_count = visualize.map_counts(sechi_results, stations_clipped)
gdf_count.plot(column='cnt', cmap='Blues', legend=True, scheme='quantiles', legend_kwds=legend_kwds)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/mapclassify/classifiers.py:1653: UserWarning: Not enough unique values in array to form 5 classes. Setting k to 4.
  self.bins = quantile(y, k=k)
[30]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_42_2.png
[31]:
# Map average results at each station
gdf_avg = visualize.map_measure(sechi_results, stations_clipped, 'Secchi')
gdf_avg.plot(column='mean', cmap='OrRd', legend=True)
[31]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_43_1.png

Temperature

The default error=’raise’, makes it so that there is an error when there is a dimensionality error (i.e. when units can’t be converted). Here we would get the error: DimensionalityError: Cannot convert from ‘count’ (dimensionless) to ‘degree_Celsius’ ([temperature])

[32]:
#'Temperature, water'
# errors=‘ignore’, invalid dimension conversions will return the NaN.
df = harmonize.harmonize(df, 'Temperature, water', intermediate_columns=True, report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'count' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(22.18, 'degree_Celsius')> <Quantity(23.01, 'degree_Celsius')>
 <Quantity(17.39, 'degree_Celsius')> ... <Quantity(4.0, 'degree_Celsius')>
 <Quantity(1.5, 'degree_Celsius')> <Quantity(3.9, 'degree_Celsius')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    149034.000000
mean         16.297632
std           7.273565
min          -9.830000
25%          11.208250
50%          17.290000
75%          21.900000
max         910.000000
dtype: float64
Unusable results: 214
Usable results with inferred units: 217
Results outside threshold (0.0 to 59.9390239067705): 467
../_images/notebooks_Harmonize_CapeCod_Detailed_46_2.png
[33]:
# Look at what was changed
cols = ['MonitoringLocationIdentifier', 'ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Temperature', 'Units']
temperature_results = df.loc[df['CharacteristicName']=='Temperature, water', cols]
temperature_results
[33]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Temperature Units
1 OARS-CND-161 22.18 deg C NaN 22.18 degree_Celsius degC
3 CRWA-ROB 23.01 deg C NaN 23.01 degree_Celsius degC
5 WTGHA-M43 17.39 deg C NaN 17.39 degree_Celsius degC
8 MASSDEP-W2386 20.9 deg C NaN 20.9 degree_Celsius degC
12 WTGHA-S35 22.54 deg C NaN 22.54 degree_Celsius degC
... ... ... ... ... ... ...
569734 11NPSWRD_WQX-CACO_GULL 4.8 deg C NaN 4.8 degree_Celsius degC
569735 11NPSWRD_WQX-CACO_GULL 9.1 deg C NaN 9.1 degree_Celsius degC
569736 11NPSWRD_WQX-CACO_GULL 4.0 deg C NaN 4.0 degree_Celsius degC
569737 11NPSWRD_WQX-CACO_GULL 1.5 deg C NaN 1.5 degree_Celsius degC
569738 11NPSWRD_WQX-CACO_GULL 3.9 deg C NaN 3.9 degree_Celsius degC

149248 rows × 6 columns

[34]:
# Examine deg F
temperature_results.loc[df['ResultMeasure/MeasureUnitCode'] == 'deg F']
[34]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Temperature Units
12632 NALMS-F865245 81 deg F NaN 27.222222222222285 degree_Celsius degF
31004 11113300-HOODERD 59.2 deg F NaN 15.111111111111143 degree_Celsius degF
31375 11113300-HOODERD 59.1 deg F NaN 15.0555555555556 degree_Celsius degF
31705 11113300-HOODERD 59.9 deg F NaN 15.500000000000057 degree_Celsius degF
32253 11113300-HOODERD 56 deg F NaN 13.333333333333371 degree_Celsius degF
... ... ... ... ... ... ...
565862 11NPSWRD_WQX-SAIR_DMF11_HS1 56.0 deg F NaN 13.333333333333371 degree_Celsius degF
565863 11NPSWRD_WQX-SAIR_DMF11_OS3 62.0 deg F NaN 16.666666666666686 degree_Celsius degF
565864 11NPSWRD_WQX-SAIR_DMF11_OS4 61.0 deg F NaN 16.111111111111143 degree_Celsius degF
565870 11NPSWRD_WQX-SAIR_DMF11_S2 43.0 deg F NaN 6.111111111111143 degree_Celsius degF
565871 11NPSWRD_WQX-SAIR_DMF11_OS1 59.0 deg F NaN 15.000000000000057 degree_Celsius degF

695 rows × 6 columns

In the above we can see examples where the results were in deg F and in the result field they’ve been converted into degree_Celsius

[35]:
# Examine missing units
temperature_results.loc[df['ResultMeasure/MeasureUnitCode'].isna()]
[35]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Temperature Units
177453 AQUINNAH-MEN PND HC 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
177454 AQUINNAH-MEN PND HC 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
177455 AQUINNAH-MEN PND HC 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
177456 AQUINNAH-MEN PND HC 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
177457 AQUINNAH-MEN PND HC 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
... ... ... ... ... ... ...
178790 AQUINNAH-SQUIB # 33 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
178791 AQUINNAH-SQUIB # 33 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
178947 AQUINNAH-SQUIB # 33 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
245324 AQUINNAH-MEN PND HC 0 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 0.0 degree_Celsius degC
554227 USGS-414654070002901 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... NaN degC

218 rows × 6 columns

We can see where the units were missing, the results were assumed to be in degree_Celsius already

[36]:
# This is also noted in the QA_flag field
list(temperature_results.loc[df['ResultMeasure/MeasureUnitCode'].isna(), 'QA_flag'])[0]
[36]:
'ResultMeasure/MeasureUnitCode: MISSING UNITS, degC assumed'
[37]:
# Look for any without usable results
temperature_results.loc[df['Temperature'].isna()]
[37]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Temperature Units
361 MERRIMACK_RIVER_WATERSHED_WQX-Hayden-Schofield 8 count NaN NaN count
3668 MERRIMACK_RIVER_WATERSHED_WQX-Manchester 8 count NaN NaN count
4193 MERRIMACK_RIVER_WATERSHED_WQX-Nina-Scarito 8 count NaN NaN count
5321 MERRIMACK_RIVER_WATERSHED_WQX-Misserville 8 count NaN NaN count
5731 MERRIMACK_RIVER_WATERSHED_WQX-Ferrous 8 count NaN NaN count
... ... ... ... ... ... ...
385996 11NPSWRD_WQX-SAIR_SWC_SR3 NaN deg C ResultMeasureValue: missing (NaN) result NaN degC
393664 11NPSWRD_WQX-SAIR_SWC_SR6 NaN deg C ResultMeasureValue: missing (NaN) result NaN degC
395152 11NPSWRD_WQX-SAIR_SWC_SR7 NaN deg C ResultMeasureValue: missing (NaN) result NaN degC
400114 11NPSWRD_WQX-SAIR_SWC_SRT9 NaN deg C ResultMeasureValue: missing (NaN) result NaN degC
554227 USGS-414654070002901 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... NaN degC

214 rows × 6 columns

[38]:
# Aggregate temperature data by station
visualize.station_summary(temperature_results, 'Temperature')
[38]:
MonitoringLocationIdentifier cnt mean
0 11113300-00-SPB 21 10.909524
1 11113300-00F-KLY 3 20.233333
2 11113300-01-BAK 10 20.600000
3 11113300-01-BVR 1 21.000000
4 11113300-01-CTP 39 24.438462
... ... ... ...
6492 WWMD_VA-WWE1149PI 1 18.800000
6493 WWMD_VA-WWE1150PI 1 21.300000
6494 WWMD_VA-WWE1151PI 2 20.700000
6495 WWMD_VA-WWE1152PI 1 20.000000
6496 WWMD_VA-WWE1153PI 1 20.800000

6497 rows × 3 columns

[39]:
# Map number of usable results at each station
gdf_count = visualize.map_counts(temperature_results, stations_clipped)
gdf_count.plot(column='cnt', cmap='Blues', legend=True, scheme='quantiles', legend_kwds=legend_kwds)
[39]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_55_1.png
[40]:
# Map average results at each station
gdf_avg = visualize.map_measure(temperature_results, stations_clipped, 'Temperature')
gdf_avg.plot(column='mean', cmap='OrRd', legend=True)
[40]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_56_1.png

Dissolved Oxygen (DO)

[41]:
# look at Dissolved oxygen (DO), but this time without intermediate fields
df = harmonize.harmonize(df, 'Dissolved oxygen (DO)')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(4.6, 'milligram / liter')> <Quantity(9.4, 'milligram / liter')>
 <Quantity(10.3, 'milligram / liter')> ...
 <Quantity(7.7, 'milligram / liter')>
 <Quantity(8.51, 'milligram / liter')>
 <Quantity(6.01, 'milligram / liter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)

Note: Imediately when we run a harmonization function without the intermediate fields they’re deleted.

[42]:
# Look at what was changed
cols = ['MonitoringLocationIdentifier', 'ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'DO']
do_res = df.loc[df['CharacteristicName']=='Dissolved oxygen (DO)', cols]
do_res
[42]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag DO
14 IRWA-HB 4.6 mg/L NaN 4.6 milligram / liter
17 MYRWA-MEB001 9.4 mg/L NaN 9.4 milligram / liter
19 NARS_WQX-MARO-1020 10.3 mg/L NaN 10.3 milligram / liter
22 WTGHA-M46 24.7 mg/L NaN 24.7 milligram / liter
23 MASSDEP-W2412 8.7 mg/L NaN 8.7 milligram / liter
... ... ... ... ... ...
569444 HORSLEYWITTEN_WQX-BWB2A 3.76 mg/L NaN 3.76 milligram / liter
569446 HORSLEYWITTEN_WQX-B3 7.57 mg/L NaN 7.57 milligram / liter
569455 HORSLEYWITTEN_WQX-BWB2A 7.7 mg/L NaN 7.7 milligram / liter
569463 HORSLEYWITTEN_WQX-BWB4 8.51 mg/L NaN 8.51 milligram / liter
569464 HORSLEYWITTEN_WQX-B7 6.01 mg/L NaN 6.01 milligram / liter

93926 rows × 5 columns

[43]:
do_res.loc[do_res['ResultMeasure/MeasureUnitCode']!='mg/l']
[43]:
MonitoringLocationIdentifier ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag DO
14 IRWA-HB 4.6 mg/L NaN 4.6 milligram / liter
17 MYRWA-MEB001 9.4 mg/L NaN 9.4 milligram / liter
19 NARS_WQX-MARO-1020 10.3 mg/L NaN 10.3 milligram / liter
22 WTGHA-M46 24.7 mg/L NaN 24.7 milligram / liter
23 MASSDEP-W2412 8.7 mg/L NaN 8.7 milligram / liter
... ... ... ... ... ...
569444 HORSLEYWITTEN_WQX-BWB2A 3.76 mg/L NaN 3.76 milligram / liter
569446 HORSLEYWITTEN_WQX-B3 7.57 mg/L NaN 7.57 milligram / liter
569455 HORSLEYWITTEN_WQX-BWB2A 7.7 mg/L NaN 7.7 milligram / liter
569463 HORSLEYWITTEN_WQX-BWB4 8.51 mg/L NaN 8.51 milligram / liter
569464 HORSLEYWITTEN_WQX-B7 6.01 mg/L NaN 6.01 milligram / liter

92629 rows × 5 columns

Though there were no results in %, the conversion from percent saturation (%) to mg/l is special. This equation is being improved by integrating tempertaure and pressure instead of assuming STP (see DO_saturation())

[44]:
# Aggregate data by station
visualize.station_summary(do_res, 'DO')
[44]:
MonitoringLocationIdentifier cnt mean
0 11113300-00F-KLY 3 4.040000
1 11113300-01-BAK 10 5.697000
2 11113300-01-BVR 1 6.700000
3 11113300-01-CTP 37 6.945135
4 11113300-01-GOL 1 4.400000
... ... ... ...
2808 WWMD_VA-SR5 1 10.810000
2809 WWMD_VA-WF2 2 6.800000
2810 WWMD_VA-WI1 1 9.510000
2811 WWMD_VA-WR2X 2 6.000000
2812 WWMD_VA-WR5 1 8.355000

2813 rows × 3 columns

[45]:
# Map number of usable results at each station
gdf_count = visualize.map_counts(do_res, stations_clipped)
gdf_count.plot(column='cnt', cmap='Blues', legend=True, scheme='quantiles', legend_kwds=legend_kwds)
[45]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_64_1.png
[46]:
# Map average results at each station
gdf_avg = visualize.map_measure(do_res, stations_clipped, 'DO')
gdf_avg.plot(column='mean', cmap='OrRd', legend=True)
[46]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_65_1.png

pH

[47]:
# pH, this time looking at a report
df = harmonize.harmonize(df, "pH", errors="ignore", report=True)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'mV' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(7.3, 'dimensionless')> <Quantity(8.16, 'dimensionless')>
 <Quantity(7.99, 'dimensionless')> ... <Quantity(6.6, 'dimensionless')>
 <Quantity(6.8, 'dimensionless')> <Quantity(7.1, 'dimensionless')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    107499.000000
mean          6.682892
std           4.086413
min          -3.124705
25%           5.860000
50%           6.800000
75%           7.680000
max         788.000000
dtype: float64
Unusable results: 4532
Usable results with inferred units: 85945
Results outside threshold (0.0 to 31.201372009432312): 14
../_images/notebooks_Harmonize_CapeCod_Detailed_67_2.png

Note the warnings that occur when a unit is not recognized by the package. These occur even when report=False. Future versions could include these as defined units for pH, but here it wouldn’t alter results.

[48]:
df.loc[df['CharacteristicName']=='pH', ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'pH']]
[48]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag pH
6 7.3 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 7.3 dimensionless
9 8.16 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 8.16 dimensionless
26 7.99 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 7.99 dimensionless
43 6.61 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 6.61 dimensionless
45 8.23 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 8.23 dimensionless
... ... ... ... ...
569646 6.6 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 6.6 dimensionless
569653 6.9 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 6.9 dimensionless
569677 6.6 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 6.6 dimensionless
569692 6.8 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 6.8 dimensionless
569719 7.1 NaN ResultMeasure/MeasureUnitCode: MISSING UNITS, ... 7.1 dimensionless

112031 rows × 4 columns

‘None’ is uninterpretable and replaced with NaN, which then gets replaced with ‘dimensionless’ since pH is unitless

Salinity

[49]:
# Salinity
df = harmonize.harmonize(df, 'Salinity', report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/basis.py:154: UserWarning: Mismatched ResultTemperatureBasisText: updated from 25 deg C to @25C (units)
  warn(f"Mismatched {flag}", UserWarning)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'deg C' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(30.33, 'Practical_Salinity_Units')>
 <Quantity(30.48, 'Practical_Salinity_Units')>
 <Quantity(33.3, 'Practical_Salinity_Units')> ...
 <Quantity(0.09, 'Practical_Salinity_Units')>
 <Quantity(0.09, 'Practical_Salinity_Units')>
 <Quantity(0.04, 'Practical_Salinity_Units')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    59993.000000
mean        23.314974
std         20.608904
min        -30.000000
25%         13.480000
50%         30.000000
75%         31.500000
max       4003.482834
dtype: float64
Unusable results: 219
Usable results with inferred units: 1
Results outside threshold (0.0 to 146.96839815303014): 3
../_images/notebooks_Harmonize_CapeCod_Detailed_72_2.png
[50]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Salinity']
df.loc[df['CharacteristicName']=='Salinity', cols]
[50]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Salinity
10 30.33 ppt NaN 30.33 Practical_Salinity_Units
51 30.48 ppt NaN 30.48 Practical_Salinity_Units
56 33.3 ppth NaN 33.3 Practical_Salinity_Units
73 30.91 ppt NaN 30.91 Practical_Salinity_Units
77 0.21 ppth NaN 0.21 Practical_Salinity_Units
... ... ... ... ...
569426 0.05 ppt NaN 0.05 Practical_Salinity_Units
569432 0.1 ppt NaN 0.1 Practical_Salinity_Units
569448 0.09 ppt NaN 0.09 Practical_Salinity_Units
569451 0.09 ppt NaN 0.09 Practical_Salinity_Units
569465 0.04 ppt NaN 0.04 Practical_Salinity_Units

60212 rows × 4 columns

Nitrogen

[51]:
# Nitrogen
df = harmonize.harmonize(df, 'Nitrogen', report=True)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/basis.py:343: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value 'as N' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[mask, basis_col] = basis
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:484: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '['as N' 'as N' 'as N' ... nan nan nan]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  self.df[c_mask] = basis.basis_from_method_spec(self.df[c_mask])
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:395: UserWarning: WARNING: 'cm3/g' UNDEFINED UNIT for Nitrogen
  warn("WARNING: " + problem)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/pandas/core/construction.py:627: UnitStrippedWarning: The unit of the quantity is stripped when downcasting to ndarray.
  data = np.asarray(data)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/pandas/core/construction.py:627: UnitStrippedWarning: The unit of the quantity is stripped when downcasting to ndarray.
  data = np.asarray(data)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(0.926976, 'milligram / liter')>
 <Quantity(1.571196, 'milligram / liter')>
 <Quantity(0.816144, 'milligram / liter')> ...
 <Quantity(0.238, 'milligram / liter')>
 <Quantity(0.052, 'milligram / liter')>
 <Quantity(0.119, 'milligram / liter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/domains.py:277: FutureWarning: Downcasting object dtype arrays on .fillna, .ffill, .bfill is deprecated and will change in a future version. Call result.infer_objects(copy=False) instead. To opt-in to the future behavior, set `pd.set_option('future.no_silent_downcasting', True)`
  sub_df[cols[2]] = sub_df[cols[2]].fillna(sub_df[cols[1]])  # new_fract
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/domains.py:277: FutureWarning: Downcasting object dtype arrays on .fillna, .ffill, .bfill is deprecated and will change in a future version. Call result.infer_objects(copy=False) instead. To opt-in to the future behavior, set `pd.set_option('future.no_silent_downcasting', True)`
  sub_df[cols[2]] = sub_df[cols[2]].fillna(sub_df[cols[1]])  # new_fract
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/domains.py:277: FutureWarning: Downcasting object dtype arrays on .fillna, .ffill, .bfill is deprecated and will change in a future version. Call result.infer_objects(copy=False) instead. To opt-in to the future behavior, set `pd.set_option('future.no_silent_downcasting', True)`
  sub_df[cols[2]] = sub_df[cols[2]].fillna(sub_df[cols[1]])  # new_fract
-Usable results-
count    2459.000000
mean        6.364974
std       105.839795
min         0.000800
25%         0.075500
50%         0.250000
75%         1.013360
max      2800.000000
dtype: float64
Unusable results: 243
Usable results with inferred units: 0
Results outside threshold (0.0 to 641.4037445624855): 6
../_images/notebooks_Harmonize_CapeCod_Detailed_75_2.png
[52]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Nitrogen']
df.loc[df['CharacteristicName']=='Nitrogen', cols]
[52]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Nitrogen
877 0.926976 mg/L NaN 0.926976 milligram / liter
953 1.571196 mg/L NaN 1.571196 milligram / liter
960 0.816144 mg/L NaN 0.816144 milligram / liter
1268 0.770448 mg/L NaN 0.770448 milligram / liter
1306 0.848832 mg/L NaN 0.848832 milligram / liter
... ... ... ... ...
569384 0.119 mg/l NaN 0.119 milligram / liter
569516 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... NaN
569559 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... NaN
569565 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... NaN
569602 NaN NaN ResultMeasureValue: missing (NaN) result; Resu... NaN

2702 rows × 4 columns

Conductivity

[53]:
# Conductivity
df = harmonize.harmonize(df, 'Conductivity', report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'count' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(590.0, 'microsiemens / centimeter')>
 <Quantity(43500.0, 'microsiemens / centimeter')>
 <Quantity(349.0, 'microsiemens / centimeter')> ...
 <Quantity(32504.0, 'microsiemens / centimeter')>
 <Quantity(31989.0, 'microsiemens / centimeter')>
 <Quantity(16107.0, 'microsiemens / centimeter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    13491.000000
mean     27213.534130
std      16253.979994
min          0.000000
25%      16685.000000
50%      30740.000000
75%      41850.000000
max      57700.000000
dtype: float64
Unusable results: 82
Usable results with inferred units: 0
Results outside threshold (0.0 to 124737.41409546306): 0
../_images/notebooks_Harmonize_CapeCod_Detailed_78_2.png
[54]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Conductivity']
df.loc[df['CharacteristicName']=='Conductivity', cols]
[54]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Conductivity
2 590 uS/cm NaN 590.0 microsiemens / centimeter
7 43.5 mS/cm NaN 43500.0 microsiemens / centimeter
49 349 uS/cm NaN 349.0 microsiemens / centimeter
52 49.7 mS/cm NaN 49700.0 microsiemens / centimeter
58 8 count NaN NaN
... ... ... ... ...
496866 31.09 mS/cm NaN 31090.0 microsiemens / centimeter
496890 16.051 mS/cm NaN 16050.999999999998 microsiemens / centimeter
496910 32.504 mS/cm NaN 32503.999999999996 microsiemens / centimeter
496918 31.989 mS/cm NaN 31989.0 microsiemens / centimeter
496924 16.107 mS/cm NaN 16107.0 microsiemens / centimeter

13573 rows × 4 columns

Chlorophyll a

[55]:
# Chlorophyll a
df = harmonize.harmonize(df, 'Chlorophyll a', report=True)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:395: UserWarning: WARNING: 'ppb' UNDEFINED UNIT for Chlorophyll
  warn("WARNING: " + problem)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:395: UserWarning: WARNING: 'ug/m3' UNDEFINED UNIT for Chlorophyll
  warn("WARNING: " + problem)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:395: UserWarning: WARNING: 'ug/cm2' UNDEFINED UNIT for Chlorophyll
  warn("WARNING: " + problem)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(0.004, 'milligram / liter')>
 <Quantity(0.0055, 'milligram / liter')>
 <Quantity(0.00948, 'milligram / liter')> ...
 <Quantity(0.0007, 'milligram / liter')>
 <Quantity(0.0011, 'milligram / liter')>
 <Quantity(0.0007, 'milligram / liter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    14012.000000
mean         0.176872
std          1.809121
min         -0.002400
25%          0.001800
50%          0.003500
75%          0.007282
max         92.900000
dtype: float64
Unusable results: 204
Usable results with inferred units: 9
Results outside threshold (0.0 to 11.031595436333586): 63
../_images/notebooks_Harmonize_CapeCod_Detailed_81_2.png
[56]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Chlorophyll']
df.loc[df['CharacteristicName']=='Chlorophyll a', cols]
[56]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Chlorophyll
13 4.0 mg/m3 NaN 0.004000000000000001 milligram / liter
288 5.50 ug/L NaN 0.0055 milligram / liter
393 9.48 ug/L NaN 0.00948 milligram / liter
713 3.0 mg/m3 NaN 0.003000000000000001 milligram / liter
1013 NaN mg/m3 ResultMeasureValue: missing (NaN) result NaN
... ... ... ... ...
569268 0.5 ug/l NaN 0.0005 milligram / liter
569275 2.5 ug/l NaN 0.0025 milligram / liter
569288 0.7 ug/l NaN 0.0007 milligram / liter
569321 1.1 ug/l NaN 0.0011 milligram / liter
569376 0.7 ug/l NaN 0.0007 milligram / liter

14216 rows × 4 columns

Organic Carbon

[57]:
# Organic carbon (%)
df = harmonize.harmonize(df, 'Organic carbon', report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'umol/L * H2O' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(7.05, 'milligram / liter')>
 <Quantity(7.57, 'milligram / liter')>
 <Quantity(3.5, 'milligram / liter')> ...
 <Quantity(4.1, 'milligram / liter')>
 <Quantity(7.79, 'milligram / liter')>
 <Quantity(5.79, 'milligram / liter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count      6185.000000
mean       5249.705328
std       35468.260584
min      -90000.000000
25%           1.790000
50%           4.900000
75%           8.900000
max      530000.000000
dtype: float64
Unusable results: 89
Usable results with inferred units: 0
Results outside threshold (0.0 to 218059.26883440206): 40
../_images/notebooks_Harmonize_CapeCod_Detailed_84_2.png
[58]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Carbon']
df.loc[df['CharacteristicName']=='Organic carbon', cols]
[58]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Carbon
1007 7.05 mg/L NaN 7.05 milligram / liter
1145 7.57 mg/L NaN 7.57 milligram / liter
1199 3.5 mg/L NaN 3.5 milligram / liter
3158 3.8 mg/L NaN 3.8 milligram / liter
4020 3.7 mg/L NaN 3.7 milligram / liter
... ... ... ... ...
569457 5.9 mg/L NaN 5.9 milligram / liter
569515 5.96 mg/l NaN 5.96 milligram / liter
569558 4.1 mg/l NaN 4.1 milligram / liter
569564 7.79 mg/l NaN 7.79 milligram / liter
569601 5.79 mg/l NaN 5.79 milligram / liter

6274 rows × 4 columns

Turbidity (NTU)

[59]:
# Turbidity (NTU)
df = harmonize.harmonize(df, 'Turbidity', report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/harmonize.py:149: UserWarning: Bad Turbidity unit: count
  warn(f"Bad Turbidity unit: {unit}")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'count' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(7.6, 'Nephelometric_Turbidity_Units')>
 <Quantity(1.0, 'Nephelometric_Turbidity_Units')>
 <Quantity(4.2, 'Nephelometric_Turbidity_Units')> ...
 <Quantity(2.1, 'Nephelometric_Turbidity_Units')>
 <Quantity(2.9, 'Nephelometric_Turbidity_Units')>
 <Quantity(2.7, 'Nephelometric_Turbidity_Units')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count    34461.000000
mean        15.657555
std         72.069369
min       -999.000000
25%          1.250000
50%          2.500000
75%          5.770000
max       4100.000000
dtype: float64
Unusable results: 3137
Usable results with inferred units: 275
Results outside threshold (0.0 to 448.07376883334996): 215
../_images/notebooks_Harmonize_CapeCod_Detailed_87_2.png
[60]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Turbidity']
df.loc[df['CharacteristicName']=='Turbidity', cols]
[60]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Turbidity
0 7.6 NTU NaN 7.6 Nephelometric_Turbidity_Units
4 1 NTU NaN 1.0 Nephelometric_Turbidity_Units
11 4.2 NTU NaN 4.2 Nephelometric_Turbidity_Units
16 1.3 NTU NaN 1.3 Nephelometric_Turbidity_Units
21 5.2 NTU NaN 5.2 Nephelometric_Turbidity_Units
... ... ... ... ...
569619 1.6 NTRU NaN 1.6 Nephelometric_Turbidity_Units
569629 5.8 NTRU NaN 5.8 Nephelometric_Turbidity_Units
569633 2.1 NTRU NaN 2.1 Nephelometric_Turbidity_Units
569637 2.9 NTRU NaN 2.9 Nephelometric_Turbidity_Units
569641 2.7 NTRU NaN 2.7 Nephelometric_Turbidity_Units

37598 rows × 4 columns

Sediment

[61]:
# Sediment
df = harmonize.harmonize(df, 'Sediment', report=False, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'g / H2O' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:134: FutureWarning: The behavior of array concatenation with empty entries is deprecated. In a future version, this will no longer exclude empty items when determining the result dtype. To retain the old behavior, exclude the empty entries before the concat operation.
  return pandas.concat(lst_series).sort_index()
[62]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Sediment']
df.loc[df['CharacteristicName']=='Sediment', cols]
[62]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Sediment
517638 0.012 g NaN NaN
517639 0.0037 g NaN NaN
517640 0.0048 g NaN NaN
517641 0.001 g NaN NaN
517642 0.0088 g NaN NaN
... ... ... ... ...
568649 0.0051 g NaN NaN
568723 0.0025 g NaN NaN
568795 0.002 g NaN NaN
568834 0.0023 g NaN NaN
568880 0.0014 g NaN NaN

4410 rows × 4 columns

Phosphorus

Note: must be merged w/ activities (package runs query by site if not already merged)

[63]:
# Phosphorus
df = harmonize.harmonize(df, 'Phosphorus', errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/pandas/core/construction.py:627: UnitStrippedWarning: The unit of the quantity is stripped when downcasting to ndarray.
  data = np.asarray(data)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/pandas/core/construction.py:627: UnitStrippedWarning: The unit of the quantity is stripped when downcasting to ndarray.
  data = np.asarray(data)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/pandas/core/construction.py:627: UnitStrippedWarning: The unit of the quantity is stripped when downcasting to ndarray.
  data = np.asarray(data)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'umol/L * H2O' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[<Quantity(0.049, 'milligram / liter')>
 <Quantity(0.024, 'milligram / liter')>
 <Quantity(0.05, 'milligram / liter')> ...
 <Quantity(0.008, 'milligram / liter')>
 <Quantity(0.047, 'milligram / liter')>
 <Quantity(0.028, 'milligram / liter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
2 Phosphorus sample fractions not in frac_dict
2 Phosphorus sample fractions not in frac_dict found in expected domains, mapped to "Other_Phosphorus"

Note: warnings for unexpected characteristic fractions. Fractions are each seperated out into their own result column.

[64]:
# All Phosphorus
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'TDP_Phosphorus']
df.loc[df['Phosphorus'].notna(), cols]
[64]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag TDP_Phosphorus
65 0.049 mg/L NaN NaN
67 0.024 mg/L NaN NaN
72 0.05 mg/L NaN NaN
89 0.027 mg/L NaN NaN
110 0.059712 mg/L NaN NaN
... ... ... ... ...
568856 0.006 mg/l as P NaN 0.006 milligram / liter
568868 0.016 mg/l as P NaN NaN
568869 0.008 mg/l as P NaN 0.008 milligram / liter
568876 0.047 mg/l as P NaN NaN
568877 0.028 mg/l as P NaN 0.028 milligram / liter

19171 rows × 4 columns

[65]:
# Total phosphorus
df.loc[df['TP_Phosphorus'].notna(), cols]
[65]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag TDP_Phosphorus
65 0.049 mg/L NaN NaN
67 0.024 mg/L NaN NaN
72 0.05 mg/L NaN NaN
89 0.027 mg/L NaN NaN
110 0.059712 mg/L NaN NaN
... ... ... ... ...
568830 0.036 mg/l as P NaN NaN
568841 0.021 mg/l as P NaN NaN
568855 0.011 mg/l as P NaN NaN
568868 0.016 mg/l as P NaN NaN
568876 0.047 mg/l as P NaN NaN

13898 rows × 4 columns

[66]:
# Total dissolved phosphorus
df.loc[df['TDP_Phosphorus'].notna(), cols]
[66]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag TDP_Phosphorus
38508 0.023 ppm NaN 0.023000000000000003 milligram / liter
43730 0.035 ppm NaN 0.03500000000000001 milligram / liter
46336 0.017 ppm NaN 0.017000000000000005 milligram / liter
46492 0.015 ppm NaN 0.015000000000000003 milligram / liter
48282 0.015 ppm NaN 0.015000000000000003 milligram / liter
... ... ... ... ...
568831 0.015 mg/l as P NaN 0.015 milligram / liter
568842 0.005 mg/l as P NaN 0.005 milligram / liter
568856 0.006 mg/l as P NaN 0.006 milligram / liter
568869 0.008 mg/l as P NaN 0.008 milligram / liter
568877 0.028 mg/l as P NaN 0.028 milligram / liter

4857 rows × 4 columns

[67]:
# All other phosphorus sample fractions
df.loc[df['Other_Phosphorus'].notna(), cols]
[67]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag TDP_Phosphorus
55180 0.03525375 mg/L NaN NaN
55247 0.107028125 mg/L NaN NaN
55757 0.0697675 mg/L NaN NaN
56022 0.04356 mg/L NaN NaN
56151 0.03654875 mg/L NaN NaN
... ... ... ... ...
553465 2600.0 mg/kg NaN NaN
553503 2900.0 mg/kg NaN NaN
553570 2500.0 mg/kg NaN NaN
553648 2600.0 mg/kg NaN NaN
553657 2200.0 mg/kg NaN NaN

416 rows × 4 columns

Bacteria

Some equivalence assumptions are built-in where bacteria counts that are not equivalent are treated as such because there is no standard way to convert from one to another.

Fecal Coliform

[68]:
# Known unit with bad dimensionality ('Colony_Forming_Units * milliliter')
df = harmonize.harmonize(df, 'Fecal Coliform', report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'MPN/100mL' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'cfu/100mL' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'CFU/100mL' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[nan nan nan ... <Quantity(140.0, 'Colony_Forming_Units / milliliter')>
 nan <Quantity(1.0, 'Colony_Forming_Units / milliliter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count      2462.000000
mean        910.512591
std        6103.365912
min           0.000000
25%          24.000000
50%          93.000000
75%         400.000000
max      250000.000000
dtype: float64
Unusable results: 5762
Usable results with inferred units: 1
Results outside threshold (0.0 to 37530.708061087345): 7
../_images/notebooks_Harmonize_CapeCod_Detailed_103_2.png
[69]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Fecal_Coliform']
df.loc[df['CharacteristicName']=='Fecal Coliform', cols]
[69]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Fecal_Coliform
22182 40 #/100mL NaN NaN
22238 9 #/100mL NaN NaN
22257 20 #/100mL NaN NaN
22477 200 #/100mL NaN NaN
22705 NO DATA #/100mL ResultMeasureValue: "NO DATA" result cannot be... NaN
... ... ... ... ...
565465 450.0 cfu/100ml NaN 450.0 Colony_Forming_Units / milliliter
565486 140.0 cfu/100ml NaN 140.0 Colony_Forming_Units / milliliter
566072 180.0 #/100mL NaN NaN
566129 1.0 cfu/100ml NaN 1.0 Colony_Forming_Units / milliliter
569644 NaN #/100mL ResultMeasureValue: missing (NaN) result NaN

8224 rows × 4 columns

Excherichia Coli

[70]:
# Known unit with bad dimensionality ('Colony_Forming_Units * milliliter')
df = harmonize.harmonize(df, 'Escherichia coli', report=True, errors='ignore')
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:158: FutureWarning: unique with argument that is not not a Series, Index, ExtensionArray, or np.ndarray is deprecated and will raise in a future version.
  for bad_meas in pandas.unique(bad_measures):
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:395: UserWarning: WARNING: 'CFUcol/100mL' UNDEFINED UNIT for E_coli
  warn("WARNING: " + problem)
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'MPN/100mL' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'cfu/100mL' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: '%' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'CFU/100mL' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/convert.py:128: UserWarning: WARNING: 'count' converted to NaN
  warn(f"WARNING: '{unit}' converted to NaN")
/opt/hostedtoolcache/Python/3.9.25/x64/lib/python3.9/site-packages/harmonize_wq/wq_data.py:663: FutureWarning: Setting an item of incompatible dtype is deprecated and will raise an error in a future version of pandas. Value '[nan nan nan ... <Quantity(44.0, 'Colony_Forming_Units / milliliter')>
 <Quantity(14.0, 'Colony_Forming_Units / milliliter')>
 <Quantity(390.0, 'Colony_Forming_Units / milliliter')>]' has dtype incompatible with float64, please explicitly cast to a compatible dtype first.
  df_out.loc[m_mask, self.out_col] = convert_unit_series(**params)
-Usable results-
count     5190.000000
mean       245.858339
std       1752.146999
min          0.000000
25%          0.500000
50%         30.000000
75%        127.750000
max      72000.000000
dtype: float64
Unusable results: 26846
Usable results with inferred units: 0
Results outside threshold (0.0 to 10758.740332329791): 14
../_images/notebooks_Harmonize_CapeCod_Detailed_106_2.png
[71]:
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'E_coli']
df.loc[df['CharacteristicName']=='Escherichia coli', cols]
[71]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag E_coli
15 96 MPN/100mL NaN NaN
18 58 #/100mL NaN NaN
24 NaN MPN/100mL ResultMeasureValue: missing (NaN) result NaN
37 24200 MPN/100mL NaN NaN
38 7270 MPN/100mL NaN NaN
... ... ... ... ...
569615 7.0 MPN/100 ml NaN 7.0 Colony_Forming_Units / milliliter
569628 870.0 MPN/100 ml NaN 870.0 Colony_Forming_Units / milliliter
569632 44.0 MPN/100 ml NaN 44.0 Colony_Forming_Units / milliliter
569636 14.0 MPN/100 ml NaN 14.0 Colony_Forming_Units / milliliter
569640 390.0 MPN/100 ml NaN 390.0 Colony_Forming_Units / milliliter

32036 rows × 4 columns

Combining Salinity and Conductivity

Convert module has various functions to convert from one unit or characteristic to another. Some of these are used within a single characteristic during harmonization (e.g. DO saturation to concentration) while others are intended to model one characteristic as an indicator of another (e.g. estimate salinity from conductivity).

Note: this should only be done after both characteristic fields have been harmonized. Results before and after should be inspected, thresholds for outliers applied, and consider adding a QA_flag for modeled data.

Explore Salinity results:

[72]:
from harmonize_wq import convert
[73]:
# First note initial Salinity info
lst = [x.magnitude for x in list(df['Salinity'].dropna())]
q_sum = sum(lst)
print('Range: {} to {}'.format(min(lst), max(lst)))
print('Results: {} \nMean: {} PSU'.format(len(lst), q_sum/len(lst)))
Range: -30.0 to 4003.4828342857154
Results: 59993
Mean: 23.31497447787275 PSU
[74]:
# Identify extreme outliers
[x for x in lst if x >3200]
[74]:
[4003.4828342857154]

Other fields like units and QA_flag may help understand what caused high values and what results might need to be dropped from consideration

[75]:
# Columns to focus on
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Salinity']
[76]:
# Look at important fields for max 5 values
salinity_series = df['Salinity'][df['Salinity'].notna()]
salinity_series.sort_values(ascending=False, inplace=True)
df[cols][df['Salinity'].isin(salinity_series[0:5])]
[76]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Salinity
30987 804 ppth NaN 804.0 Practical_Salinity_Units
245431 70.62 ppth NaN 70.62 Practical_Salinity_Units
245931 71.49 ppth NaN 71.49 Practical_Salinity_Units
270683 77.6666666666667 ppt NaN 77.6666666666667 Practical_Salinity_Units
559728 4980.0 mg/mL @25C ResultTemperatureBasisText: updated from 25 de... 4003.4828342857154 Practical_Salinity_Units

Detection limits may help understand what caused low values and what results might need to be dropped or updated

[77]:
df = wrangle.add_detection(df, 'Salinity')
cols+=['ResultDetectionConditionText',
       'DetectionQuantitationLimitTypeName',
       'DetectionQuantitationLimitMeasure/MeasureValue',
       'DetectionQuantitationLimitMeasure/MeasureUnitCode']
[78]:
# Look at important fields for min 5 values (often multiple 0.0)
df[cols][df['Salinity'].isin(salinity_series[-5:])]
[78]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Salinity ResultDetectionConditionText DetectionQuantitationLimitTypeName DetectionQuantitationLimitMeasure/MeasureValue DetectionQuantitationLimitMeasure/MeasureUnitCode
14084 0 ppm NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
15918 0 ppm NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
17732 0 ppm NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
25879 0 ppt NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
26522 0 PSS NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
... ... ... ... ... ... ... ... ...
473094 0 ppth NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
473140 0 ppth NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
473152 0 ppth NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
490515 0 ppth NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN
490729 0 ppth NaN 0.0 Practical_Salinity_Units NaN NaN NaN NaN

806 rows × 8 columns

Explore conductivity results:

[79]:
# Create series for Conductivity values
cond_series = df['Conductivity'].dropna()
cond_series
[79]:
2                      590.0 microsiemens / centimeter
7                    43500.0 microsiemens / centimeter
49                     349.0 microsiemens / centimeter
52                   49700.0 microsiemens / centimeter
85                     443.0 microsiemens / centimeter
                              ...
496866               31090.0 microsiemens / centimeter
496890    16050.999999999998 microsiemens / centimeter
496910    32503.999999999996 microsiemens / centimeter
496918               31989.0 microsiemens / centimeter
496924               16107.0 microsiemens / centimeter
Name: Conductivity, Length: 13491, dtype: object

Conductivity thresholds from Freshwater Explorer: 10 > x < 5000 us/cm, use a higher threshold for coastal waters

[80]:
# Sort and check other relevant columns before converting (e.g. Salinity)
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'QA_flag', 'Salinity', 'Conductivity']
df.sort_values(by=['Conductivity'], ascending=False, inplace=True)
df.loc[df['Conductivity'].notna(), cols]
[80]:
ResultMeasureValue ResultMeasure/MeasureUnitCode QA_flag Salinity Conductivity
279986 57700 uS/cm NaN NaN 57700.0 microsiemens / centimeter
318612 52.418 mS/cm NaN NaN 52418.0 microsiemens / centimeter
300871 52.418 mS/cm NaN NaN 52418.0 microsiemens / centimeter
315667 51.618 mS/cm NaN NaN 51618.0 microsiemens / centimeter
308895 51.618 mS/cm NaN NaN 51618.0 microsiemens / centimeter
... ... ... ... ... ...
3464 0.02 uS/cm NaN NaN 0.02 microsiemens / centimeter
8440 0 uS/cm NaN NaN 0.0 microsiemens / centimeter
97054 0 mS/cm NaN NaN 0.0 microsiemens / centimeter
97206 0 mS/cm NaN NaN 0.0 microsiemens / centimeter
3992 0 uS/cm NaN NaN 0.0 microsiemens / centimeter

13491 rows × 5 columns

[81]:
# Convert values to PSU and write to Salinity
cond_series = cond_series.apply(str)  # Convert to string to convert to dimensionless (PSU)
df.loc[df['Conductivity'].notna(), 'Salinity'] = cond_series.apply(convert.conductivity_to_PSU)
df.loc[df['Conductivity'].notna(), 'Salinity']
[81]:
279986    38.468 dimensionless
318612    34.521 dimensionless
300871    34.521 dimensionless
315667    33.929 dimensionless
308895    33.929 dimensionless
                  ...
3464       0.012 dimensionless
8440       0.012 dimensionless
97054      0.012 dimensionless
97206      0.012 dimensionless
3992       0.012 dimensionless
Name: Salinity, Length: 13491, dtype: object

Datetime

datetime() formats time using dataretrieval and ActivityStart

[82]:
# First inspect the existing unformated fields
cols = ['ActivityStartDate', 'ActivityStartTime/Time', 'ActivityStartTime/TimeZoneCode']
df[cols]
[82]:
ActivityStartDate ActivityStartTime/Time ActivityStartTime/TimeZoneCode
279986 2021-06-21 NaN NaN
318612 2022-08-09 12:58:00 EST
300871 2022-08-09 12:58:00 EST
315667 2022-08-09 13:25:00 EST
308895 2022-08-09 13:25:00 EST
... ... ... ...
569749 1956-08-16 NaN NaN
569750 1956-06-16 NaN NaN
569751 1956-07-01 NaN NaN
569752 1955-08-16 NaN NaN
569753 1952-08-16 NaN NaN

569754 rows × 3 columns

[83]:
# 'ActivityStartDate' presserves date where 'Activity_datetime' is NAT due to no time zone
df = clean.datetime(df)
df[['ActivityStartDate', 'Activity_datetime']]
[83]:
ActivityStartDate Activity_datetime
279986 2021-06-21 NaT
318612 2022-08-09 2022-08-09 17:58:00+00:00
300871 2022-08-09 2022-08-09 17:58:00+00:00
315667 2022-08-09 2022-08-09 18:25:00+00:00
308895 2022-08-09 2022-08-09 18:25:00+00:00
... ... ...
569749 1956-08-16 NaT
569750 1956-06-16 NaT
569751 1956-07-01 NaT
569752 1955-08-16 NaT
569753 1952-08-16 NaT

569754 rows × 2 columns

Activity_datetime combines all three time component columns into UTC. If time is missing this is NaT so a ActivityStartDate column is used to preserve date only.

Depth

Note: Data are often lacking sample depth metadata

[84]:
# Depth of sample (default units='meter')
df = clean.harmonize_depth(df)
#df.loc[df['ResultDepthHeightMeasure/MeasureValue'].dropna(), "Depth"]
df['ResultDepthHeightMeasure/MeasureValue'].dropna()
[84]:
223201    0.15
225337    0.15
118227    0.15
123436    0.15
223870    0.15
          ...
448481    0.15
448483    0.15
448484    0.15
448485    1.23
448486    1.65
Name: ResultDepthHeightMeasure/MeasureValue, Length: 24059, dtype: float64

Characteristic to Column (long to wide format)

[85]:
# Split single QA column into multiple by characteristic (rename the result to preserve these QA_flags)
df2 = wrangle.split_col(df)
df2
[85]:
OrganizationIdentifier OrganizationFormalName ActivityIdentifier ActivityStartDate ActivityStartTime/Time ActivityStartTime/TimeZoneCode MonitoringLocationIdentifier ResultIdentifier DataLoggerLine ResultDetectionConditionText ... QA_DO QA_TP_Phosphorus QA_TDP_Phosphorus QA_Other_Phosphorus QA_Temperature QA_Conductivity QA_Chlorophyll QA_Sediment QA_Turbidity QA_Salinity
279986 NARS_WQX EPA National Aquatic Resources Survey (NARS) NARS_WQX-185450_2021 2021-06-21 NaN NaN NARS_WQX-NWC_RI-10033 STORET-1040684142 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
318612 AQUINNAH_WQX Wampanoag Tribe of Gay Head (Aquinnah) (Tribal) AQUINNAH_WQX-P3:202208091258:FM 2022-08-09 12:58:00 EST AQUINNAH_WQX-P3 STORET-1057585495 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
300871 WTGHA Wompanoag Tribe of Gay Head Aquinnah (Tribal) WTGHA-P3:20220809125800:FM:B 2022-08-09 12:58:00 EST WTGHA-P3 STORET-1041330082 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
315667 WTGHA Wompanoag Tribe of Gay Head Aquinnah (Tribal) WTGHA-P4:20220809132500:FM:B 2022-08-09 13:25:00 EST WTGHA-P4 STORET-1041330098 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
308895 AQUINNAH_WQX Wampanoag Tribe of Gay Head (Aquinnah) (Tribal) AQUINNAH_WQX-P4:202208091325:FM 2022-08-09 13:25:00 EST AQUINNAH_WQX-P4 STORET-1057585502 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...
569748 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19570701_731710 1957-07-01 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598867 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
569749 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19560816_731708 1956-08-16 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598866 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
569750 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19560616_731704 1956-06-16 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598862 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
569751 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_DUCK_W_19560701_731705 1956-07-01 NaN NaN 11NPSWRD_WQX-CACO_DUCK_W STORET-740598863 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
569752 11NPSWRD_WQX National Park Service Water Resources Division 11NPSWRD_WQX-CACO_GREAT_W_19550816_731703 1955-08-16 NaN NaN 11NPSWRD_WQX-CACO_GREAT_W STORET-740649462 NaN NaN ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN

516321 rows × 118 columns

[86]:
# This expands the single col (QA_flag) out to a number of new columns based on the unique characteristicNames and speciation
print('{} new columns'.format(len(df2.columns) - len(df.columns)))
15 new columns
[87]:
# Note: there are fewer rows because NAN results are also dropped in this step
print('{} fewer rows'.format(len(df)-len(df2)))
53433 fewer rows
[88]:
#Examine Carbon flags from earlier in notebook (note these are empty now because NAN is dropped)
cols = ['ResultMeasureValue', 'ResultMeasure/MeasureUnitCode', 'Carbon', 'QA_Carbon']
df2.loc[df2['QA_Carbon'].notna(), cols]
[88]:
ResultMeasureValue ResultMeasure/MeasureUnitCode Carbon QA_Carbon

Next the table is divided into the columns of interest (main_df) and characteristic specific metadata (chars_df)

[89]:
# split table into main and characteristics tables
main_df, chars_df = wrangle.split_table(df2)
[90]:
# Columns still in main table
main_df.columns
[90]:
Index(['OrganizationIdentifier', 'OrganizationFormalName',
       'ActivityIdentifier', 'MonitoringLocationIdentifier', 'ProviderName',
       'Secchi', 'Temperature', 'DO', 'pH', 'Salinity', 'Nitrogen',
       'Speciation', 'TOTAL NITROGEN_ MIXED FORMS', 'Conductivity',
       'Chlorophyll', 'Carbon', 'Turbidity', 'Sediment', 'Phosphorus',
       'TP_Phosphorus', 'TDP_Phosphorus', 'Other_Phosphorus', 'Fecal_Coliform',
       'E_coli', 'DetectionQuantitationLimitTypeName',
       'DetectionQuantitationLimitMeasure/MeasureValue',
       'DetectionQuantitationLimitMeasure/MeasureUnitCode',
       'Activity_datetime', 'Depth', 'QA_Carbon', 'QA_pH', 'QA_E_coli',
       'QA_Nitrogen', 'QA_Fecal_Coliform', 'QA_Secchi', 'QA_DO',
       'QA_TP_Phosphorus', 'QA_TDP_Phosphorus', 'QA_Other_Phosphorus',
       'QA_Temperature', 'QA_Conductivity', 'QA_Chlorophyll', 'QA_Sediment',
       'QA_Turbidity', 'QA_Salinity'],
      dtype='object')
[91]:
# look at main table results (first 5)
main_df.head()
[91]:
OrganizationIdentifier OrganizationFormalName ActivityIdentifier MonitoringLocationIdentifier ProviderName Secchi Temperature DO pH Salinity ... QA_DO QA_TP_Phosphorus QA_TDP_Phosphorus QA_Other_Phosphorus QA_Temperature QA_Conductivity QA_Chlorophyll QA_Sediment QA_Turbidity QA_Salinity
279986 NARS_WQX EPA National Aquatic Resources Survey (NARS) NARS_WQX-185450_2021 NARS_WQX-NWC_RI-10033 STORET NaN NaN NaN NaN 38.468 dimensionless ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
318612 AQUINNAH_WQX Wampanoag Tribe of Gay Head (Aquinnah) (Tribal) AQUINNAH_WQX-P3:202208091258:FM AQUINNAH_WQX-P3 STORET NaN NaN NaN NaN 34.521 dimensionless ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
300871 WTGHA Wompanoag Tribe of Gay Head Aquinnah (Tribal) WTGHA-P3:20220809125800:FM:B WTGHA-P3 STORET NaN NaN NaN NaN 34.521 dimensionless ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
315667 WTGHA Wompanoag Tribe of Gay Head Aquinnah (Tribal) WTGHA-P4:20220809132500:FM:B WTGHA-P4 STORET NaN NaN NaN NaN 33.929 dimensionless ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN
308895 AQUINNAH_WQX Wampanoag Tribe of Gay Head (Aquinnah) (Tribal) AQUINNAH_WQX-P4:202208091325:FM AQUINNAH_WQX-P4 STORET NaN NaN NaN NaN 33.929 dimensionless ... NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN

5 rows × 45 columns

[92]:
# Empty columns that could be dropped (Mostly QA columns)
cols = list(main_df.columns)
x = main_df.dropna(axis=1, how='all')
[col for col in cols if col not in x.columns]
[92]:
['Sediment',
 'QA_Carbon',
 'QA_DO',
 'QA_TDP_Phosphorus',
 'QA_Conductivity',
 'QA_Sediment']
[93]:
# Map average results at each station
gdf_avg = visualize.map_measure(main_df, stations_clipped, 'Temperature')
gdf_avg.plot(column='mean', cmap='OrRd', legend=True)
[93]:
<Axes: >
../_images/notebooks_Harmonize_CapeCod_Detailed_144_1.png