SWRRB.80: A Basin Scale Model for Microcomputers

by A. D. Nicks, USDA, Agricultural Research Service, Durant, OK, USA,
J. R. Williams, USDA, Agricultural Research Service, Durant, OK, USA,
J. A. Arnold, USDA, Agricultural Research Service, Durant, OK, USA,

Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age


The SWRRB (Simulator for Water Resources on Rural Basins) model was developed by the USDA Agricultural Research Service to simulate the daily stream flow, and sediment loads from agricultural basins ranging in size from a few hectares to areas up to 1000 sq. km. The model has the capability to simulate, continuously on a daily time step, outputs from 5 sub-basin areas, which include daily, monthly, and annual surface flow, peak flow rates, return sub-surface flow, water and sediment balance for ponds and reservoir in each sub-basin, percolation below the root zone, evapotranspiration from the land cover and sediment loads leaving the basin. This paper briefly describes the model, defines the required inputs and model limitations, and explains the adoption of the model for microcomputer applications.

Subject Headings: Subsurface flow | Computer models | Flow duration | Flow rates | Flow simulation | Streamflow | Basins | Hydrologic models

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