Scientific Investigations Report 2006–5101–D
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5101–D
Table A1. Sources of geographical information system (GIS) and digital data used to derive study basins in the Willamette Valley ecoregion, Oregon and Washington.
| Basin characteristics |
GIS data theme | Data theme source | Reference or data source |
|---|---|---|---|
| Data used to delineate basins | |||
| Watershed boundaries | National Elevation Dataset (NED) | U.S. Geological Survey | U.S. Geological Survey, 1999, and U.S. Geological Survey Seamless Data Distribution System web site: http://seamless.usgs.gov; data extracted, 2002 and 2003. |
| Digital Raster Graphics (DRG) | U.S. Geological Survey and Regional Ecosystem Office | Regional Ecosystem Office (REO) geographical information system (GIS) Data web site: http://www.reo.gov/gis/data/DRG_Files/northwest.asp; data extracted, 2002–05. | |
| National Hydrography Dataset (NHD) | U.S. Geological Survey | U.S. Geological Survey National Hydrography Dataset web site: http://nhd.usgs.gov/; data extracted 2005. | |
| Data used as geographical information system (GIS) variables | |||
| Demography | Census Blocks and Block Groups 2000, short (SF1) and long forms (SF3) | U.S. Census Bureau | Geolytics Census 2000 Blocks short form CD and Census CD/DVD 2000 long form. |
| Infrastructure | Census 2000 Topologically Integrated Geographic Encoding and Referencing system (TIGER) Line® files | U.S. Census Bureau | Census TIGER web site: http://www.census.gov/geo/www/tiger/ |
| National Pollutant Discharge Elimination System (NPDES) | U.S. Environmental Protection Agency | U.S. Environmental Protection Agency Envirofacts web site: http://www.epa.gov/enviro/index_java.html; data extracted, 2002. | |
| Toxics Release Inventory | U.S. Environmental Protection Agency | U.S. Environmental Protection Agency Envirofacts web site: http://www.epa.gov/enviro/index_java.html; data extracted, 2002. | |
| Land use/land cover, including riparian buffer | National Land Cover Dataset (NLCD) 2001 | U.S. Geological Survey | U.S. Geological Survey, 2005; web site: http://www.mrlc.gov/mrlc2k_nlcd.asp; data extracted, 2005. |
| National Hydrography Dataset (NHD) | U.S. Geological Survey | U.S. Geological Survey National Hydrography Dataset web site: http://nhd.usgs.gov/; data extracted 2005. | |
| Soil | State Soils Geographic (STATSGO) database | Natural Resources Conservation Service | National Resources Conservation Service web site: http://www.ncgc.nrcs.usda.gov/products/datasets/statsgo/; data extracted, 2002. |
| Hydrologic soil groups | Natural Resources Conservation Service | National Resources Conservation Service web site: http://www.ncgc.nrcs.usda.gov/products/datasets/statsgo/; data extracted, 2002. | |
| Hydrologic landscape regions | Hydrologic landscape regions | U.S. Geological Survey | U.S. Geological Survey web site: http://water.usgs.gov/GIS/metadata/usgswrd/XML/hlrus.xml; data extracted, 2002. |
| Ecoregion | Ecoregions | U.S. Environmental Protection Agency | U.S. Environmental Protection Agency web site: http://www.epa.gov/wed/pages/ecoregions/level_iii.htm and http://www.epa.gov/wed/pages/ecoregions/level_iv.htm; data extracted, 2002 and 2005; Omernik (1987). |
| Topography | National Elevation Dataset (NED) | U.S. Geological Survey | U.S. Geological Survey, 1999, and U.S. Geological Survey Seamless Data Distribution System web site: http://seamless.usgs.gov; data extracted, 2002 and 2005. |
| Climate | Daymet Climatological Summaries for the Conterminous United States, 1980-97 | University of Montana, Numerical Terradynamic Simulation Group and National Center for Atmospheric Research (NCAR) | Daymet web site: http://daymet.ntsg.umt.edu/data/data.htm; data extracted, 2005. |
| FRAGSTATS | National Land Cover Dataset (NLCD) 2001 | U.S. Geological Survey and National Oceanic and Atmospheric Administration | McGarigal, Kevin, and Marks, B.J., 1995, FRAGSTATS web site: http://www.umass.edu/landeco/research/fragstats/fragstats.html; data extracted, 2005. Coastal Change and Analysis Program (C-CAP), 2006, web site: http://www.csc.noaa.gov/crs/lca/pacificcoast.html. |
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/sir/2006/5101-D
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