HEC-1, TR-20, Rational Method and NFF

WMS, which includes HEC-1, TR-20, Rational Method, and NFF is a state-of-the-art computer program which utilizes digital terrain data to delineate watershed and sub-basin boundaries and compute geometric parameters used in hydrologic modeling. WMS with HEC-1 includes tools which aid in the creation of both rural and urban watersheds with interfaces to hydrologic modeling software.

WMS with HEC-1 models are created from triangulated irregular networks (TINs). TINs are easily created within WMS with HEC-1 using digital elevation sources such as the USGS digital elevation models (DEMs), grids exported from common GIS software, or any set of scattered xyz data.

WMS Interfaces

HEC-1, developed by the U.S. Army Corps of Engineers, is designed to simulate the surface runoff response of a river basin to precipitation by representing the basin as an interconnected system of hydrologic and hydraulic components.

TR-20, developed by the Soil Conservation Service, assists in hydrologic evaluation of flood events for use in analysis of water resource projects.

Rational Method is one of the simplest and best-known methods routinely applied in urban hydrology.

National Flood Frequency Program (NFF), developed by the USGS in cooperation with the Federal Highway Administration (FHA) and Federal Emergency Management Agency (FEMA), evaluates regression equations for estimating T-year flood-peak discharges for rural and urban watersheds. For all your HEC-1, TR-20, Rational Method, and NFF modeling needs, WMS is the model of choice!

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Scientific Software Group
WMS with HEC-1, TR20, Rational Method and NFF
e-mail: info@scisoftware.com
http://www.scisoftware.com
 

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