Or even Esri's new ArcGIS Online delivered- Hydrology Analysis Services-data should need minimal preparation to allow you to run the GSFLOW (Markstrom, et.al, 2008) model for any location n the world. Otherwise, preprocessed NHD Plus/ Hydro Basins data is readily available. It is trivial to use a seat of ArcGIS for Desktop Advanced (trial version is fine), and the ArcHydro Tools extensions with NED/ SRTM/ GDEM data to derive the needed HRUs and corresponding finite-difference cell polygons for the use in a GSFLOW ground and surface flow model simulation. You cant have workstation without an arcinfo license, but you can, and increasingly more and more people do, have an arcinfo license without workstation present - which means the answers suggesting geoprocessing clean tool cant be used. If you are at an Academic institution that has Esri campus or lab agreement in place, find out whom your primary contact is-they'll have access to the My Esri portal.īut, I really do not believe that you are going to require ArcInfo Workstation and AML scripting to derive the HRU details needed for PRMS and MODFLOW components of GSFLOW. In common usage ArcInfo can refer to a) arcinfo workstation, and b) arcinfo license level. Would depend on your Academic, Commercial or Governmental affiliation-somewhere in the mix there would need to be a license agreement with Esri for access to and use of the ArcGIS product.
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