Model Input and Output for Hydrologic Simulations of the Upper Chattahoochee River Basin that Demonstrate Enhancements to the Precipitation Runoff Modeling System

This data release contains inputs for and outputs from hydrologic simulations of the upper Chattahoochee River Basin in northeast Georgia using the Precipitation Runoff Modeling System (PRMS). These simulations were developed to provide example applications of enhancements to the PRMS for the following topics: two new time-series input options (dynamic parameter module and water-use module), two new output options (Hydrologic Response Unit (HRU) summary output module and basin variables summary output module), and three updates of existing capabilities (stream and lake flow routing module, surface-depression storage and flow simulation, and the initial-conditions specification). These PRMS model input and output data are intended to accompany a U.S. Geological Survey Techniques and Methods report (Regan and LaFontaine, 2017); they include three types of data: 1) PRMS input parameter and data files, 2) PRMS output data files, and 3) GIS files of the model hydrologic response units and stream segments. This data release contains the following example simulations associated with the enhancements: 1) baseline (HRU summary and basin variables output modules, updates to depression storage), 2) dynamic parameter module, 3) initial conditions output, 4) use of initial conditions file, 5) stream and lake flow routing with the flow replacement option, 6) stream and lake flow routing with the flow through lake option, and 7) water-use module.

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