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  1. JZZz

    determine longest flow path for large basin using ArcGIS

    Hi, Do any of you know any good plugin or tools for ArcGIS to determine longest flow path for a large basin (500 square miles)? I tried ArcHydro, which is not reliable? also tried Miscellaneous Hydrology Tools for ArcGIS...
  2. JZZz

    HEC-RAS 5.0.7 cannot calculate infiltration for each cells?

    Just started to use HEC-RAS 2D to calculate the flow depth and velocities. I am using HEC-RAS 5.0.7. I noticed it cannot calculate the infiltration for each cells. I have to calculate infiltration by myself when Computing Excess Rainfall Hyetograph using a averaged CN for the whole site. And...
  3. JZZz

    Sources for collecting precipitation data

    NOAA Precipitation Frequency Data Server is down since March 9th. Are there any other sources for collecting rainfall data? TIA.

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