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Abstract
Parameterization Assistance for NWS Hydrology Models Using ArcViewTrack: Water Resources
Author(s): Seann Reed, Stephen King, Victor Koren, Ziya Zhang, David Wang, Michael Smith
National Weather Service River Forecast Centers (RFCs) frequently use the Snow 17 and the Sacramento Soil Moisture Accounting (SAC-SMA) models to assist with flood forecasting. Although these models were developed using physical reasoning, they are conceptual models for which parameters cannot be measured directly in the field. The most accurate parameter estimates are still derived through calibration against observed stream flow; however, the use of GIS data can also help. An ArcView application called the Calibration Assistance Program (CAP) has been developed to extract useful information from soil property, forest cover, satellite snow cover, rainfall climatology, and potential evaporation data layers.
Seann Reed
National Weather Service
1325 East-West Highway w/OHD-1
Silver Spring, MD 20910
USA
Phone: 301-713-0640 x1
Fax: 301-713-0963
E-mail: seann.reed@noaa.gov