NEW version of HGS (HGS PREMIUM January 2025 (REVISION 2766)

The HydroGeoSphere Revision 2766 (January 2025) is now available for download.

This update brings improvements that enhance the accuracy of precipitation and evapotranspiration calculations within HGS, ensuring more reliable water balance computations. Specifically, we have made updates to polygon tracking that previously caused precipitation to report as zero for some polygons when multiple rain boundary conditions were defined. Enhancements to polygon tracking now provide correct precipitation reporting when multiple rain boundary conditions are defined and improve actual evapotranspiration (AET) calculations over porous medium layers when multiple potential evapotranspiration (PET) boundary conditions are present. These fixes ensure more reliable water balance computations and enhance the overall precision of HGS simulations. Here’s the full list of updates:

1. Add binary output files prefixo.max_depth_olf.XXXX and prefixo.max_depth_chan.XXXX that report the maximum water depth in the surface and channel domains. At each output time, the maximum water depth over all previous timesteps starting from the initial head distribution is reported.

   • Will make it much simpler to understand the outputs of channel domain hydrology.

2. New command create node set from shp that combines node selection and node set creation from a single shapefile. It applies to Point, PointM, PointZ, PolyLine, PolyLineM, PolyLineZ, Polygon, PolygonM, and PolygonZ shape types (see hydrosphere_ref.pdf).

   • Will make it simpler/provide more options to users to generate note sets for the application of boundary conditions

3. New boundary condition command nodal flux head target control applies to the flux nodal boundary condition. It allows the user to activate/deactivate the applied specified flux based on the head value at an observation point (within a specified domain) relative to a target head value (see hydrosphere_ref.pdf).

   • Always exciting to have a new boundary condition! This BC will act similar to the pressure head flux reduction modifier to the standard "nodal flux" BC, but allows for much greater flexibility.

You can find details about these new features in the HydroGeoSphere Reference Manual. And as always, we are committed to the continued improvement to the user experience. Do you have suggestions for new commands or improvements to the user experience? Send your ideas to support@aquanty.com!

The latest installers are available on the HGS download page and a full list of changes/updates can be found in the release notes.

Download the January 2025 release of HydroGeoSphere here: https://www.aquanty.com/hgs-download

Review the release notes here: https://www.aquanty.com/updates