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A Comparison of FSU/NWS and OneRain Precipitation Data and Their Insertion Into the WAM Hydrologic Model

A Research Project for the South Florida Water Management District

Area covered by the South Florida Water Management District (SFWMD).

Two widely used procedures by which radar- and gauge-derived rainfall can be optimally combined are those by the OneRain Corporation and the National Weather Service (NWS). The Florida Water Management Districts use rainfall data from the OneRain algorithm. On the other hand, Florida State University (FSU) has employed the National Weather Service scheme to create an historical precipitation database for the Florida Department of Environmental Protection (FDEP). Although the methodologies as well as the spatial and temporal resolution of each dataset differ, each is being used by their respective agencies to make water management and regulatory decisions. Thus, it is important to know how rainfall values from the two schemes compare to each other. This research statistically compares results from the two schemes and develop procedures so that both versions of data can be inserted into the Watershed Assessment Model (WAM) hydrologic model. A later phase of the research will make actual WAM model runs using both datasets over various Florida watersheds.

Graduate Student on this Project

Steven Martinaitis

Click here to reach the web site of the South Florida Water Management District.

Click here to learn more about the FDEP project, and associated studies.

last updated September 6, 2006