Wetlands Mapping in the Coastal Zone: Progress Towards a National Digital Data Base

by Thomas E. Dahl, US Fish & Wildlife Service, Washington, DC, USA,

Document Type: Proceeding Paper

Part of: Coastal Zone '87


To date approximately 90 percent of the coastal zone of the lower 48 states has been mapped by the National Wetlands Inventory (NWI). A number of Federal and State agencies have expressed an interest in having this information available in digital map form with corresponding acreage summaries and statistics. This paper presents the status of NWI mapping in the coastal zone and describes steps which are underway to construct a coastal wetlands data base for the Great Lakes as a precursor to a National coastal wetlands data base.

Subject Headings: Wetlands (coastal) | Mapping | Databases | Lakes | Inventories | Statistics | Protective structures | Great Lakes

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