Since HEC-GeoHMS for ArcGIS is no longer under active development, users requiring ongoing support should consider:
Since ArcGIS 10.8 is the last of its kind, ensure the version of HEC-GeoHMS you are linking to is actually compatible (usually HEC-GeoHMS version 10.2 or newer often works on 10.8, but specific builds exist). If the file is hard to find, this makes your "Exclusive" claim much stronger download hec geohms for arcgis 108 exclusive
Then check log for error code 1603 (ArcGIS not registered). Since HEC-GeoHMS for ArcGIS is no longer under
: It is strongly recommended to install the matching version of Arc Hydro Tools for 10.8 before installing GeoHMS, as many functions are shared. Esri Community 3. Installation Steps Run the Installer : Double-click the downloaded file (e.g., HEC-GeoHMS108.exe Follow the Wizard Esri Community 3
Calculation of physical basin characteristics (area, slope, flow path length).