SWMM - Rain Gages

Rain Gages provide rainfall data for one or more subcatchment areas within a study region. The precipitation data can be a user-defined time series or come from an external file. Several popular rain file formats currently in use are supported, as well as a user-defined default format.

When creating a new rain gage, provide the following properties:

• Identification
  • Description (Description, String) - Use a friendly description when the item name is not enough
  • Name (Name, String) - name of the item
    Avoid names that are too long, or that contain the following characters: '*', '>', '<', '/', '\', '"', ':', ';', '|', '=', '`', '#', ',', '?'
  • Priority (Priority, Enum) - Information about the current state of the item. It might be:
    • Neutral: no problem
    • Critical: Some issue that prevents the item from being calculated or used
• SWMM
  • Rain Data (RainGageData, RainGageData) - Rain data source
    It might be:
    • Dat File (RainGageDatFile) - provide the file name of rain data
      • Precipitation Format (RainType, Enum) - Format in which rainfall data is provided:
        • Intensity: mm/h or in/h
        • Volume: mm or in
        • Cumulative: mm or in
      • Rainfall File (RainFile, String) - Full name of the rainfall file
      • Station (StationID, String) - Rain gauge station number
      • Precipitation Unit (RainUnits, Enum) - Precipitation unit for the rainfall file data
    • Time Series (RainGageDataSerie) - provide the name of the time series that describes the rain gauge data
      It can be of the following types:
      • Intensity - each precipitation value is an average rate in inches/hour (or mm/hour) over the recording interval
      • Volume - each rainfall value is the volume of rain that fell during the recording interval (in inches or millimeters)
      • Cumulative Volume - each precipitation value represents the accumulated precipitation that has occurred since the start of the last series of non-zero values (in inches or millimeters)
  • Snow Factor (SnowCatch, Double) - Factor that corrects meter readings for snowfall
  • Rainfall Interval (TimeInterval, Double) - Recording time interval between meter readings
  • Location (Location, GeometryPoint) - Point of Insertion - in SWMM informs the coordinates of the pluviometer
  • Tag (Tag, String) - Optional category or classification