FEWS Stream Flow (SF) Model ~Progress Report~

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Presentation transcript:

FEWS Stream Flow (SF) Model ~Progress Report~ Tanya Hoogerwerf 3/29/01 http://mozambique.gecp.virginia.edu/Floods/limpopopics.htm picture

THE MODEL ~ Study Area Supplied by Guleid A. Artan of the USGS Data for the Limpopo basin in Mozambique Map Source: http://www.reliefweb.int/mapc/afr_sth/reg/floods_usaid23mar01.htm

Rainfall/Runoff Simulation To bin32

Rainfall/Runoff Simulation con’t

Parameters

GIS-Based FEWS SF MODEL

Complete Terrain Analysis Option: FEWS SF MODEL ~ Option 1 Complete Terrain Analysis Option: INPUT: Hydro1K grids OUTPUT: basins, downstream, flowlength, hilllength, outlets, streams, strlinks grids

HYDRO 1K Elevation Derivative Database

DATA PREPARATION Project ESRI map data into Lambert Azimuthal Equal Area Clip grids to buffered Mozambique polygon

FEWS SF MODEL Watershed Delineation

Work to be done… Generate Basins Characteristics File Command Requires a CN grid, Soil Water Holding Capacity Grid, Soil Depth Grid, Soil Texture Grid, Hydraulic Conductivity Grid and Max. Impervious Cover Grid Generate Basin Response File Command Requires Velocity Coefficient Grid

SPECIAL THANKS Guleid A. Artan (USGS) HYDRO1K Jordan Furnans http://mozambique.gecp.virginia.edu/Floods/photos.html