Published:
August 1, 1997
Originator:
Chesapeake Bay Program
EPA Number:
EPA 903-R-97-019

For watershed modeling purposes, the Chesapeake Bay basin was divided into 63 model segments in 1992 as part of the development of Phase II the Chesapeake Bay Watershed Model (Figure E.1.1). The original phase II segmentation was based on a combination of USGS hydrologic unti boundaries, NOAA shore line data for the Bay, location of water quality gauging stations, and the aggregation of relatively homogeneous hydrologic/topographic reigons. For more detailed documentation on the approach taken in the development of this model please refer to the "Chesapeake Bay Program Watershed Model Application to Calculate Bay Nutrient Loadings."

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