Runtime Chart Display Scale

VELMA has powerful visualization capabilities built into it, hence the model's name - Visualizing Ecosystem LandManagement Assessments. To see a list of visualization options, select the VELMA GUI "Chart" tab at any timeduring a simulation, then click the drop-down menu button (

For example, the "Soil Moisture Spatial" visualization displays runtime daily changes in spatial patterns of soilmoisture (% saturation) for four soil layers for a 20-ha watershed on the day currently being simulated. Ascreenshot for a particular day is shown below. The lower third of display is a running graphical summary ofdaily changes in soil moisture per soil layer from January 1 up to the date currently simulated. A new view isgenerated at the beginning of each calendar year). A variety of hardwired display formats are used for differentoutput variables.

You can save daily screenshots as .png files by clicking the "Snapshot" button (located near the middle of themenu bar at the bottom of the screenshot, above). You can also save a series of daily images by clicking the"Capture Images Daily" checkbox. After a simulation is completed, third-party software can be used to stitchtogether a time series of saved .png screenshots to make a time-lapse movie. However, note that saving daily.png images for long simulations can fill large amounts of disk space.

You can use the VELMA GUI's All Parameters tab to review and change the settings for display parameterscontrolling minimum (min) and maximum (max) values for the y-axis and range color bar. To locate all displayparameters, select the "25.0 Runtime Chart Display Scale" item from the All Parameters drop-down menu button:

Different runtime display charts use different subsets of the display parameters. Unfortunately, nothing listedunder "All Parameters 25.0 Runtime Chart Display Scale" indicates which display parameters belong to aparticular runtime display chart. Therefore, we have constructed the table below so that users can associateruntime display chart names with the display parameters used by that chart.

For example, if you want to adjust VELMA's "Annual Plot" display for soil humus, you would find "Annual Plot"under the "Display Selector Name" column in the table below, copy "maxHumusDayDisplay" and paste it inthe "Parameter" search window in the VELMA GUI's All Parameters view. Hit your keyboard's "Enter" key and youshould see "maxHumusDayDisplay" under "Parameter column. Specify the value you want. Repeat for theprocess for the "minHumusDayDisplay" parameter. [Note: you cannot change the display parameterizationsduring a simulation run. Currently, the VELMA GUI does not allow runtime display scales to change dynamicallyduring simulation runs. Prior to starting a simulation, you must set the display parameters for any chart youwill use during a simulation.]

Display Selector Name	MIN Display Setting	MAX Display Setting
<cover> + Denitrification Daily-Linear	( always zero ) ( always zero ) ( always zero )	maxDenitrificationDaySpatialDisplay maxNo3DenitDaySpatialDisplay maxCo2DenitDaySpatialDisplay
Annual Plot	( always zero ) ( always zero ) ( always zero ) minBiomassYearFinalDisplay minHumusDayDisplay minLitterDayDisplay minNepYearSumDisplay	maxDonLossYearFinalDisplay maxDocLossYearFinalDisplay maxNppYearSumDisplay maxBiomassYearFinalDisplay maxHumusDayDisplay maxLitterDayDisplay maxNepYearSumDisplay
Burn Spatial Data	minBiomassAgStemDayDisplay minBiomassLeafDayDisplay minDetritusAgStemDayDisplay minDetritusLeafDayDisplay minHumusDayDisplay minLitterDayDisplay	maxBiomassAgStemDayDisplay maxBiomassLeafDayDisplay maxDetritusAgStemDayDisplay maxDetritusLeafDayDisplay maxHumusDayDisplay maxLitterDayDisplay
Calibration Annual Nutrients	( always zero ) ( always zero ) ( always zero ) minDocLossYearSumDisplay	maxNh4LossYearSumDisplay maxNo3LossYearSumDisplay maxDonLossYearSumDisplay maxDocLossYearSumDisplay
Calibration Daily Nutrients	( always zero ) ( always zero ) ( always zero ) ( always zero )	maxNh4LossDayDisplay maxNo3LossDayDisplay maxDonLossDayDisplay maxDocLossDayDisplay
Calibration Hydrology	( always zero ) ( always zero ) ( always zero ) ( always zero ) minHydroYearSumDisplay	maxRainDayDisplay maxRunoffDayDisplay maxSubRunoffDayDisplay maxEtDayDisplay maxHydroYearSumDisplay
CO2 Pool Spatial	( always zero )	maxCo2DaySpatialDisplay
Daily Nitrogen Fixation	( always zero ) ( always zero ) ( always zero ) ( always zero ) ( always zero ) ( always zero ) ( always zero ) ( always zero )	maxNinDayDisplay maxPlantUptakeSpatialDisplay maxSymbioticNfixedDayDisplay maxAsymbioticNfixedDayDisplay maxDonLossDayDisplay maxTotalNLossDayDisplay maxNitrificationDaySpatialDisplay maxDenitrificationDaySpatialDisplay
Default Layer 1 - 4	( always zero ) ( always zero ) ( always zero ) ( always zero )	maxDonLossDayDisplay maxDocLossDayDisplay maxRainDayDisplay maxRunoffDayDisplay
Denitrification Daily-Spatial	( always zero )	maxDenitrificationDaySpatialDisplay
Denitrification Daily-Spatial 1 - 4	( always zero ) ( always zero ) ( always zero )	maxDenitrificationDaySpatialDisplay maxNo3DenitDaySpatialDisplay maxCo2DaySpatialDisplay
DOC Pool Spatial	( always zero )	maxDocSpatialDisplay
DON Pool Spatial	( always zero )	maxDonSpatialDisplay
Evapotranspiration	( always zero )	maxEtDayDisplay
Harvest Spatial Data	minBiomassDayDisplay minHumusDayDisplay minLitterDayDisplay	maxBiomassDayDisplay maxHumusDayDisplay maxLitterDayDisplay
Leaf Stem Root Daily Data	minBiomassAgStemDayDisplay minBiomassBgStemDayDisplay minBiomassLeafDayDisplay minBiomassRootDayDisplay minDetritusAgStemDayDisplay minDetritusBgStemDayDisplay minDetritusLeafDayDisplay minDetritusRootDayDisplay	maxBiomassAgStemDayDisplay maxBiomassBgStemDayDisplay maxBiomassLeafDayDisplay maxBiomassRootDayDisplay maxDetritusAgStemDayDisplay maxDetritusBgStemDayDisplay maxDetritusLeafDayDisplay maxDetritusRootDayDisplay
Leaf Stem Root Layer Details Daily Data	minBiomassRootLayersDayDisplay minDetritusBgStemLayersDayDisplay minDetritusRootLayersDayDisplay minHumusLayersDayDisplay	maxBiomassRootLayersDayDisplay maxDetritusBgStemLayersDayDisplay maxDetritusRootLayersDayDisplay maxHumusLayersDayDisplay
LSR Summary Spatial	( always zero ) minBiomassDayDisplay minHumusDayDisplay minLitterDayDisplay	maxNppDayDisplay maxBiomassDayDisplay maxHumusDayDisplay maxLitterDayDisplay
NH4 Pool Spatial	( always zero )	maxNh4SpatialDisplay
Nitrification Daily-Spatial	( always zero )	maxNitrificationDaySpatialDisplay
Nitrogen Fixation Daily- Spatial	( always zero ) ( always zero )	maxSymbioticNfixedDayDisplay maxAsymbioticNfixedDayDisplay
NO3 Pool Spatial	( always zero )	maxNo3SpatialDisplay
Plant Uptake Spatial	minPlantUptakeSpatialDisplay	maxPlantUptakeSpatialDisplay
Productivity Spatial	( always zero ) ( always zero ) ( always zero ) minBiomassDayDisplay	maxNppDayDisplay maxNh4SpatialDisplay maxNo3SpatialDisplay maxBiomassDayDisplay
Snow Dynamics Spatial	( always zero ) ( always zero ) ( always zero ) ( always zero ) minAirTSpatialDisplay	maxRainSpatialDisplay maxSnowSpatialDisplay maxSnowDepthSpatialDisplay maxSnowMeltSpatialDisplay maxAirTSpatialDisplay
Standing Water	( always zero ) ( always zero ) ( always zero )	maxRainDayDisplay maxRunoffDayDisplay maxStandingWaterDayDisplay
Temperature Data	minAirTDayDisplay	maxAirTDayDisplay
Time Series	( always zero ) ( always zero ) ( always zero ) ( always zero ) minAirTDayDisplay minBiomassDayDisplay minHumusDayDisplay minLitterDayDisplay	maxDonLossDayDisplay maxDocLossDayDisplay maxRainDayDisplay maxRunoffDayDisplay maxAirTDayDisplay maxBiomassDayDisplay maxHumusDayDisplay maxLitterDayDisplay
VSA Spatial and Hydro Linear	( always zero ) ( always zero )	maxRainDayDisplay maxRunoffDayDisplay
Weather Summary Spatial	( always zero ) ( always zero ) ( always zero ) ( always zero ) minAirTDayDisplay minAirTSpatialDisplay	maxRainDayDisplay maxRainSpatialDisplay maxSnowSpatialDisplay maxSnowMeltSpatialDisplay maxAirTDayDisplay maxAirTSpatialDisplay