Rain Gages supply precipitation data for one or more subcatchment areas in a study region. The rainfall data can be either a user-defined time series or come from an external file. Several different popular rainfall file formats currently in use are supported, as well as a standard user-defined format.
The input parameters for a Rain Gages are listed in the table below:
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Field
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Description
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Name
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User-assigned rain gage name
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X-Coordinate
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East-West location of the rain gage on the Study Area Map. Locations can be updated by moving the rain gage with the map toolbar.
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Y-Coordinate
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North-South location of the rain gage on the Study Area Map. Locations can be updated by moving the rain gage with the map toolbar.
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Rain Format
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Format in which the rain data are supplied:
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INTENSITY:
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each rainfall value is an average rate in inches/hour (or mm/hour) over the recording interval.
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VOLUME:
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each rainfall value is the volume of rain that fell in the recording interval (in inches or millimeters).
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CUMULATIVE:
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each rainfall value represents the cumulative rainfall that has occurred since the start of the last series of non-zero values (in inches or millimeters).
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Rain Interval
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Recording time interval between gage readings in decimal hours or hours:minutes format.
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Snow Catch Factor
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Recording time interval between gage readings in decimal hours or hours:minutes format.
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Data Source
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Source of rainfall data; either TIMESERIES for user-defined time series data or FILE for an
external data file.
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Series Name
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Name of time series with rainfall data if Data Source selection was TIMESERIES.
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Data File
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Name of file with rainfall data if Data Source selection was FILE.
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Station Id.
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Recording gage station number if Data Source selection was FILE.
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Rain Units
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Depth units (IN or MM) for rainfall values in user-prepared files (other standard file formats have fixed units depending on the format) if Data Source selection was FILE.
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