GISHydro@Maryland


A Collaboration between the Department of Civil and Environmental Engineering and the Maryland State Highway Administration, Office of Structures (OOS)
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GISHydro Overview and Features

GISHydro is a computer program used to assemble and evaluate hydrologic models for watershed analysis.  Originally developed in the mid-1980s, the program combines a database of terrain, land use, and soils data with specialized GIS tools for assembling data and extracting model parameters.

Purpose

The primary purpose of the GISHydro program is to assist engineers in performing watershed analyses, especially to support transportation design projects, in the State of Maryland.

History of GISHydro

GISHydro was developed out of a need for automated methods for conducting watershed analyses.  Manual methods for assembling watershed parameters for rainfall-runoff models such as TR-20 require an extraordinary amount of effort and tediousness to assemble map based data.  When GIS technology emerged in the early 1980s, the ability to automatically determine hydrologic model parameters was identified. 

GISHydro2000

In the Fall of 1997, a new collaborative project between the Department of Civil and Environmental Engineering and the Maryland State Highway Administration began to update and enhance GISHydro.

Current and Future Projects

Currently, GISHydro2000 is based on ArcView3.x as its GIS platform. A project is underway to port GISHydro2000 to an ArcGIS 10.1 platform. The ArcView 3.x version of GISHydro2000 will continue to be maintained, supported, and possibly even extended while this tranformation to Arc10 is being completed.