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Revision as of 19:36, 27 January 2011

GSSHA™ Executable Installation Downloads

Release Version 3

This is the most stable version. However this version is no longer being updated for bugs. If you are experiencing some difficulty you think is related to the code, download version 4.x and try that. Use of version 4 may require changes to your input files. These changes are being incorporated into the Wiki as they occur. Note: Use of GSSHA v 5 is strongly reccomended.

Release Version 4

Version 4 development has ceased as of January 2009. As with Version 3, it is no longer being updated for bugs. Documentation of version 4 in the Wiki is essentially complete. Version 4 is compatible with WMS 8.2. Note: Users should begin using v 5 of GSSHA.

Release Version 5

GSSHA v 5 is considered the official release version of the model. The previous versions are no longer supported and are not supported by current version of WMS. Since file formats have changed over versions it is reccommended that the users of the older versions adopt v5 and make the required changes to their input files. This version includes significant enhancements including the ability to input hydrographs, with or without contaminants, at any point in the stream network and a version of the multi-layer G&A infiltration model that can be used in long term mode, linked with groundwater, and used in contaminant transport, including transport in the soils. The multi-layer G&A is not currently supported by WMS. This version also includes contaminant transport of constitutents attached to sediments. The sub-surface drainage with tile drains are working in this version as well. In addition, the input for the GAR infiltration model has been modified such that the wilting point value is entered in the G&A model of infiltration table and not included in the evapotranspiration table in the mapping table file. The automated calibration method has also been modified and undergone extensive testing to ensure robustness. As of Oct 2009 the automated calibration method can be used for calibration to sediment data, as well as flow data (See Chapter 18 of the manual). The most recent addition is the ability to put out maps of groundwater recharge (See Chapter 3 of the Manual). Other than the notes above GSSHA v 5.1 is generally supported by WMS v 8.4 which is currently being modified to include support for these new features. Note: in a previous version 5 (as of April 2009) the G&A infiltration method for single events was producing incorrect results, this problem has been resolved as of May 21, 2009. This problem did not affect models using GAR, multi-layer G&A, or RE solutions of infiltation. The October 2009 releases have bug fixes to the automated calibration routines. The March 2010 release has bug fixes for contaminant transport. The June 2010 release has changes related to sediment transport output files, corrects problems reading the Richards Equation mapping table, and corrects Superlink starting conditions and error flags. The October 2010 compile fixes problems with using multiple gages and for automated calibration. If you are using multiple gages in your automated calibration you should definitely switch to this or a later version of the model.

It is strongly reccomended that users of earlier versions of GSSHA and WMS switch to GSSHA v 5.1 and WMS v 8.4.

=Version 5.7

We are releasing a new version, v5.7. In this version we have the OpenMP parallelization working on both the 32 bit and the 64 bit version. We also have resolved many file related problems that were really only appearing during the use of the automated calibration. In addition, there have been a significant number of corrections to the in-stream sediment routing in this version of the code. If you are doing sediment transport with streams you definitely want to be using this version. There are no input changes associated with this version so it is compatible with WMS v 8.4. The programs below will install gssha5.7.exe on your computer. You will need to enter the command gssha5.7 to use this version.

Watershed Modeling System

For Corps users, a copy of the WMS software can be obtained on the CHL web site. A license and password to use WMS can be obtained by following the instructions on the site.

For non-Corps users, a licensed copy of the WMS software can be obtained from the Aquaveo web site.

The WMS wiki can be found here.

WMS 8.1 interfaces with GSSHA™ 3.0b. The recently released WMS 8.2 interfaces with GSSHA™ 4.0 and WMS 8.4 interfaces with GSSHA™ 5 .

Tutorial Files

Logos

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