Search results

...umb|none|left|550 px|HY8 Modeling Wizard showing the ''Define Land Use and Soil Data'' step.]] The ''Define Land Use and Soil Data'' step converts GIS Module shapefiles to data in the WMS Map module.

:A GSSHA model is needed before soil data can be added. !style="text-align:left;"|2. Add soil data.

...numbers. For a [[WMS:Land Use|land use]] or [[WMS:Soil Type Coverage|soil type coverage]], the mapping table may be set up interactively by selecting each ...le is a mapping table containing composite curve numbers (CN), which are a type of lumped parameter. Land use tables with corresponding CNs vary from text

...ure is commonly used to join a separate table of soil attributes to a soil type shapefile in order to compute composite Curve Numbers.

...s in the United States. Information covered includes soil characteristics, soil properties, and addresses limits, risks, and suitability for various uses. ...=https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx |title= Web Soil Survey |accessdate=May 1, 2019 |publisher=USDA Natural Resource Conservatio

...Dialog GSSHA Overland Soil Erosion.png|thumb|right|500 px|GSSHA ''Overland soil erosion'' dialog.]] ...on'' dialog allows sediments to be defined. It is accessed by turning on ''Soil erosion'' in the other options section of the [[WMS:GSSHA Job Control|''GSS

; Computing Orange County Losses : Soil type and land use data are required in order to compute Orange County losses (Fm # [[WMS:Importing Shapefiles|Import shapefiles]] with soil type and land use data

...to be imported into WMS. Digital maps of rainfall depth (isohyetal maps), soil types, land use (percent impervious), and DPA zones are all available from ===Computation Type===

...ns/gis_data/huc/ this location]. "Ssurgo" data can be downloaded from the soil data mart [http://soildatamart.nrcs.usda.gov/ here]. # If needed, convert the coordinates of the soil data to State plane coordinates as described for DEMs above.

...·}}[[WMS:GSSHA Join SSURGO Data#Using Soil Type Data with GSSHA|Using Soil Type Data with GSSHA]]

.... Many, if not all, of these losses are affected by the land cover or soil type. ...ethod#OC_Rational_Equation|peak flow rate]]. This value corresponds to the soil group, cover complex, and imperviousness of the drainage subarea. ''Fm'' is

* [[WMS:Soil Type|Soil Type]]

#SCS (NRCS) Curve Numbers for hydrologic soil groups (requires the use of a soil coverage as well). #Soil type A CN, soil type B CN, soil type C CN, and soil type D CN.

...her number indicates a higher likelihood of the contaminant adsorbing onto soil particles. ...distribution coverage type in WMS. Simply create either a land use or soil type coverage and create polygons representing the different contaminant plumes.

Most of the files used by WMS have a card type format. With this format, the different components of the file are grouped * [[WMS:Soil Type Runoff Coefficient Files|Soil Type Runoff Coefficient Files]]