Concept information
Preferred term
NWI
Definition
- The National Wetlands Inventory (NWI) of the U.S. Fish & Wildlife Service produces information on the characteristics, extent, and status of the Nation?s wetlands and deepwater habitats. The National Wetlands Inventory Center information is used by Federal, State, and local agencies, academic institutions, U.S. Congress, and the private sector. The NWIC has mapped 90 percent of the lower 48 states, and 34 percent of Alaska. About 44 percent of the lower 48 states, and 13 percent of Alaska are digitized. Congressional mandates require the NWIC to produce status and trends reports to Congress at ten-year intervals. In addition to status and trends reports, the NWIC has produced over 130 publications, including manuals, plant and hydric soils lists, field guides, posters, wall size resource maps, atlases, state reports, and numerous articles published in professional journals. The National Wetlands Inventory Center (NWIC) is located in Saint Petersburg, Florida. We are a state-of-the-art computer operation which is responsible for constructing the wetlands layer of the National Spatial Data Infrastructure. NWI maps and digitial data are distributed widely throughout the country and the world. We have distributed over 1.9 million maps and over 1 million digital wetland map files since they were first introduced. Products and Services: The National Wetlands Inventory has many products, you may access these products by clicking on the "specific product" or go to our downloads page. Below is a list of the directories that contain products that may be of value to our users: 1. Dlgdata: NWI 7.5' quad maps are available here. You can download wetland maps that have been digitized and converted to dlg (digital line graph) format. Dlg is a vector format developed by the USGS and the files are NOT images (gifs, jpegs). If you want to use the dlg files you must have GIS software (ArcInfo, Mapinfo, etc) that has the ability to import dlg format. The data is organized by USGS 250k map name so it is advised to have a USGS index book for the state in which your desired quads are located in order to find which 1:250k to access. 2. Arcdata: NWI maps that have been digitized and converted to Arc Export format. The data are organized by USGS 250k map name and so it is advisable to have a USGS index book for the state in which your desired quads are located in order to find which 250k directory to access. 3. Maps: Status and ordering information about NWI products. An explanation of NWI map codes and new additions to on-line dlgdata work areas in progress for digital wetlands data. 4. Samples: 14 sample quads in dlg, dxf, moss, grass, and arc formats along with acreage summaries for each quad. 5. Software: Amls and smls for converting NWI dlg files to ArcInfo, unzipping software, parsing software and a public domain version of tar for MS-DOS. Office Directory: Washington Office Benjamin N. Tuggle Chief, Division of Federal Program Activities U.S.Fish & Wildlife Service Division of Habitat Conservation 4401 North Fairfax Drive - Room 400 Arlington, Virginia 22203-1610 NWI Center - Saint Petersburg, Florida U.S. Fish and Wildlife Service National Wetlands Inventory Center 9720 Executive Center Drive North Monroe Building, Suite 101 Saint Petersburg, Florida 33702 Phone: 727-570-5400, Fax: 727-570-5420 For more information, link to "http://www.nwi.fws.gov/" [Summary provided by U.S. Fish and Wildlife Service] (en)
Broader concept
- M - O (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/877928b0-e0fd-4b3c-9425-d039cb184734
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