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| Enter the depth of rainfall, in inches, on the subarea. The depth of rainfall on any subarea in the Los Angeles area can be determined from isohyetal maps developed by LACDPW (maps for the 2, 5, 10, 25, 50, 100, and 500-year are available). These isohyetal maps are available in ARC/INFO® Grid format for import into WMS. WMS can determine the rainfall depth in any subarea from these rainfall grids through the [[WMS:Using GIS Data to Map Parameters|Map Attributes]] command in the MODRAT menu.
| | #REDIRECT [[WMS:MODRAT Edit Parameters]] |
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| Along with defining a rainfall depth, a temporal distribution series must also be defined. The Define Series button allows you to enter the [[WMS:XY Series Editor|XY Series Editor]] in WMS. This editor allows you to import or manually enter a temporal distribution for the rainfall in the subarea. The temporal series typically used for LA County can be imported from the file LACDPWStorm1500min.xys, found in the /MODRAT/Rain/ folder of your WMS installation.
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| ==Related Topics==
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| * [[WMS:MODRAT Edit Parameters|Editing MODRAT Parameters]]
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| * [[WMS:Using GIS Data to Map Parameters|Using GIS Data to Map Parameters]]
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| * [[WMS:MODRAT Area|Area]]
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| * [[WMS:MODRAT Impervious Area|Impervious Area]]
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| * [[WMS:MODRAT Soil Type|Soil Type]]
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| * [[WMS:MODRAT Time of Concentration|Time of Concentration]]
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| {{WMSMain}}
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