Michael E. Wieczorek Andrew E. LaMotte 2010 tabular digital data Digital Data Series DS-491-15 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?mrb_e2rf1_nlcd01 This tabular data set represents the estimated area of land use and land cover from the National Land Cover Dataset 2001 (LaMotte, 2008), compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data set represents land use and land cover for the conterminous United States for 2001. The National Land Cover Data Set for 2001 was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC Consortium is a partnership of Federal agencies (http://www.mrlc.gov), consisting of the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), the U.S. Environmental Protection Agency (USEPA), the U.S. Department of Agriculture (USDA), the U.S. Forest Service (USFS), the National Park Service (NPS), the U.S. Fish and Wildlife Service (USFWS), the Bureau of Land Management (BLM), and the USDA Natural Resources Conservation Service (NRCS). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's (USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011). Data were compiled for every MRB_E2RF1 catchment for the conterminous United States covering the South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5) and the Pacific Northwest (MRB7) river basins. This tabular data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate categorical areas of land use and land cover for 2001 per watershed segment in the application of the national SPAtially Referenced Regression On Watershed attributes (SPARROW) model . The SPARROW model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and stream transport. The model empirically estimates the origin and fate of contaminants in streams, and quantifies uncertainties in these estimates based on model coefficient error and unexplained variability in the observed data. For more information on the USGS SPARROW model please refer to: http://water.usgs.gov/nawqa/sparrow/intro/intro.html. 2001 publication date Complete None planned -127.910792 -65.327751 51.657387 23.243486 None NLCD01 land use and land cover Inlandwaters MRB_E2RF1 MRB_E2RF1WS Catchment NAWQA SPARROW None Conterminous United States MRB Major River Basins MRB1 NEMA New England and Mid-Atlantic MRB2 SAGT South Atlantic-Gulf and Tennessee MRB3 GLMR Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy MRB4 MORI Missouri MRB5 LMTG Lower Mississippi, Arkansas-White-Red, and Texas-Gulf MRB6 COGB Rio Grande, Colorado, and Great Basin MRB7 PANW Pacific Northwest MRB8 CALI California None None Michael E. Wieczorek U.S. Geological Survey mailing address

5522 Research Park Drive

Baltimore MD 21228 USA 443-498-5550 443-498-5510 mewieczo@usgs.gov http://water.usgs.gov/GIS/browse/mrb_e2rf1_nlcd01.jpg Illlustration of data set JPG Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000 Charles G. Crawford Pixie A. Hamilton Anne B. Hoos October 5, 2006 Reston, Virginia U.S. Geological Survey Prepared by Charlie Crawford, Pixie Hamilton, and Anne Hoos for a NAWQA National Liaison Meeting, Washington D.C., October 5, 2006 http:/water.usgs.gov/nawqa/studies/mrb/mrb_factsheet.pdf The values of the items were verified for computational accuracy by the author and reviewers. Complete. Jacqueline V. Nolan John W. Brakebill Richard B. Alexander Gregory E. Schwarz Febuary 22, 2002 vector digital data USGS Open-File Report USGS Open-File Report 02-40 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?erf1_2 online 2002 publication date ERF1_2 The modified version of the source data provided a reach network to construct reach catchments for MRBs and subsequent processing (J.W. Brakebill, U.S. Geological Survey, written commun., 2008). John W. Brakebill Silvia E. Terziotti 20110222 vector digital data General Information Web Only Baltimore, MD U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?mrb_e2rf1 online 2011 publication date MRB_E2RF1 The source data provided a reach network to construct reach catchments for MRBs and subsequent processing. John W. Brakebill Silvia E. Terziotti 20110222 raster digital data General Information Web Only Baltimore, MD U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?mrb_e2rf1ws online 2011 publication date MRB_E2RF1WS The source data provided reach catchments for MRBs and subsequent processing. LaMotte, Andrew E. 2008 raster digital data Data Series DS-383A Reston, VA U.S. Geological Survey http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_1.xml online 2008 publication date NLCD01 The source data set provided information on land cover areas for each basin. LaMotte, Andrew E. 2008 raster digital data Data Series DS-383B Reston, Virginia U.S. Geological Survey http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_2.xml online 2008 publication date NLCD01 The source data set provided information on land cover areas for each basin. LaMotte, Andrew E. 2008 raster digital data Data Series DS-383C Reston, Virginia U.S. Geological Survey http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_3.xml online 2008 publication date NLCD01 The source data set provided information on land cover areas for each basin. LaMotte, Andrew E. 2008 raster digital data Data Series DS-383D Reston, Virginia U.S. Geological Survey http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_4.xml online 2008 publication date NLCD01 The source data set provided information on land cover areas for each basin. 1) Downloaded land use and land cover GRIDs from http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_1.xml http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_2.xml http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_3.xml http://water.usgs.gov/GIS/metadata/usgswrd/XML/nlcd01_4.xml 2) Resampled the MRB_E2RF1WS catchment GRIDs from 100-meter to 30-meter to match the resolution of the land-use GRIDs 3) Summarized the area of each land-use category per catchment by using the COMBINE command in GRID. The COMBINE command combines the land use and catchment GRIDs into one GRID. The resulting GRID tables the area of each land-use type per catchment. 4) Exported results into a dbf file format. 2008 nlcd01_rf1 dbf tabular data ESRI OID Internal feature number ESRI Sequential unique whole numbers that are automatically generated RF1ID Unique ID to relate to the item MRB_ID in the MRB_E2RF1WS catchment and MRB_E2RF1 reach coverages. U.S. Geological Survey Sequential unique whole numbers that are automatically generated NLCD01_11 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Open Water: All areas of open water, generally with less than 25 percent cover of vegetation or soil. U.S. Geological Survey 100 2066510700 NLCD01_12 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Perennial Ice/Snow: All areas characterized by a perennial cover of ice and/or snow, generally greater than 25 percent of total cover. U.S. Geological Survey 100 2066510700 NLCD01_21 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Developed, Open Space: Includes areas with a mixture of some constructed materials, but mostly vegetation in the form of lawn grasses. Impervious surfaces account for less than 20 percent of total cover. These areas most commonly include large-lot single-family housing units, parks, golf courses, and vegetation planted in developed settings for recreation, erosion control, or aesthetic purposes. U.S. Geological Survey 100 2066510700 NLCD01_22 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Developed, Low Intensity: Includes areas with a mixture of constructed materials and vegetation. Impervious surfaces account for 20-49 percent of total cover. These areas most commonly include single-family housing units. U.S. Geological Survey 100 2066510700 NLCD01_23 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Developed, Medium Intensity: Includes areas with a mixture of constructed materials and vegetation. Impervious surfaces account for 50-79 percent of the total cover. These areas most commonly include single-family housing units. U.S. Geological Survey 100 2066510700 NLCD01_24 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Developed, High Intensity: Includes highly developed areas where people reside or work in high numbers. Examples include apartment complexes, row houses, and commercial/industrial. Impervious surfaces account for 80-100 percent of the total cover. U.S. Geological Survey 100 2066510700 NLCD01_31 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Barren Land (Rock/Sand/Clay): Barren areas of bedrock, desert pavement, scarps, talus, slides, volcanic material, glacial debris, sand dunes, strip mines, gravel pits, and other accumulations of earthen material. Generally, vegetation accounts for less than 15 percent of total cover. U.S. Geological Survey 100 2066510700 NLCD01_41 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Deciduous Forest: Areas dominated by trees generally greater than 5 meters tall, and greater than 20 percent of total vegetation cover. More than 75 percent of the tree species shed foliage simultaneously in response to seasonal change. U.S. Geological Survey 100 2066510700 NLCD01_42 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Evergreen Forest: Areas dominated by trees generally greater than 5 meters tall, and greater than 20 percent of total vegetation cover. More than 75 percent of the trees maintain their leaves all year. Canopy is never without green foliage. U.S. Geological Survey 100 2066510700 NLCD01_43 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Mixed Forest: Areas dominated by trees generally greater than 5 meters tall, and greater than 20 percent of total vegetation cover. Neither deciduous nor evergreen species are greater than 75 percent of total tree cover. U.S. Geological Survey 100 2066510700 NLCD01_52 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Shrub/Scrub: Areas dominated by shrubs less than 5 meters tall. Shrub canopy is typically greater than 20 percent of total vegetation. This class includes true shrubs, young trees in an early successional stage or trees stunted from environmental conditions. U.S. Geological Survey 100 2066510700 NLCD01_71 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Grassland/Herbaceous: Areas dominated by graminoid or herbaceous vegetation, generally greater than 80 percent of total vegetation. These areas are not subject to intensive management such as tilling, but can be utilized for grazing U.S. Geological Survey 100 2066510700 NLCD01_81 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Pasture/Hay: Areas of grasses, legumes, or grass-legume mixtures planted for livestock grazing or the production of seed or hay crops, typically on a perennial cycle. Pasture/hay vegetation accounts for greater than 20 percent of total vegetation. U.S. Geological Survey 100 2066510700 NLCD01_82 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Cultivated Crops: Areas used for the production of annual crops, such as corn, soybeans, vegetables, tobacco, and cotton, and also perennial woody crops such as orchards and vineyards. Crop vegetation accounts for greater than 20 percent of total vegetation. This class also includes all land being actively tilled. U.S. Geological Survey 100 2066510700 NLCD01_90 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Woody Wetlands: Areas where forest or shrubland vegetation accounts for greater than 20 percent of vegetative cover and the soil or substrate is periodically saturated with or covered with water. U.S. Geological Survey 100 2066510700 NLCD01_95 Estimated area, in square meters, of catchment that contains the land-use and land-cover type Emergent Herbaceous Wetlands: Areas where perennial herbaceous vegetation accounts for greater than 80 percent of vegetative cover and the soil or substrate is periodically saturated with or covered with water. U.S. Geological Survey 100 2066510700 NLCD01_ARE Area of catchment that the source GRID covers in square meters U.S. Geological Survey 100 2066510700 BASIN_AREA Total area of catchment in square meters U.S. Geological Survey 100 2066510700 NODATA_ARE Area of catchment that the source GRID does not cover in square meters U.S. Geological Survey 100 2066510700 COV_PERC Percentage of catchment that the source GRID covers U.S. Geological Survey 0 100 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Although this dataset has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. dbf Full coverage zipped 297 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb1.zip dbf Full coverage zipped 471 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb2.zip dbf Full coverage zipped 617 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb3.zip dbf Full coverage zipped 602 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb4.zip dbf Full coverage zipped 459 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb5.zip dbf Full coverage zipped 263 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb6.zip dbf Full coverage zipped 487 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb7.zip dbf Full coverage zipped 131 KB http://water.usgs.gov/GIS/dsdl/mrb_e2rf1_nlcd01_mrb8.zip None. This dataset is provided by the USGS as a public service. 20100817 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+mrb_e2rf1_nlcd01 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998