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Title: Modeling subsurface storm and tile drain systems in GSSHA with SUPERLINK
Authors: Downer, Charles Wayne.
Pradhan, Nawa Raj.
Bryd, Aaron R.
Keywords: Hydrology
Computer programs
System-Wide Water Resources Program (U.S.)
Publisher: Coastal and Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-14-11
Abstract: The U.S. Army Corps of Engineers Gridded Surface Subsurface Hydrologic Analysis Model (GSSHA) is a physics-based, fully distributed, hydrologic model used for hydrologic and watershed analysis. The GSSHA model can operate on individual events or continuously with calculated evapotranspiration and soil-moisture accounting between rainfall events. GSSHA is applicable to a wide range of engineering and environmental problems, such as flooding, flood control, erosion and erosion control, and total maximum daily loadings and pollution abatement. A subsurface storm drain model, called SUPERLINK, has been incorporated into GSSHA to allow the model to explicitly include the effects of subsurface drainage networks. Representing subsurface drainage networks as channel, overland flow, or within the groundwater parameters can lead to significant errors when simulating watersheds with subsurface drainage features. In SUPERLINK, as implemented in GSSHA, flow to the subsurface system can originate from surface openings or subsurface tile drains. In agricultural settings, tile drains are used to lower the local water table below the crop root depth and exert a dominate influence on hydrology in these settings. This document briefly describes the SUPERLINK model and the inputs for a GSSHA model with SUPERLINK in detail.
Description: Technical Report
Gov't Doc #: ERDC/CHL TR-14-11
Rights: Approved for public release; distribution is unlimited.
Size: 39 pages / 1.325 Mb
Types of Materials: PDF
Appears in Collections:Technical Report

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