NAWQA GIS resources

Data sets

NAWQA base layers

• NAWQA study units - Coverages and illustrations
• Surface-water basins
• Ground-water study areas (SUS/LUS)
• Sampling sites/Ground-water network centroids
  The sites and GW network centroids are generated automatically by the NAWQA Data Warehouse. The sites and GW network centroids are recreated when the DWH is refreshed.
  • Sites and GW network centroids coverages
  • Sites and GW network centroids geodatabase
• Surface-Water Regions (MRBs)- Full resolution | Metadata || Generalized version | Metadata (formerly called Major River Basins; revised Sept. 2004)
• Drainage basins used for development of the Watershed Regressions for Pesticides (WARP) Model
• MRB basin coverages
• Hydrologic landscape regions
  • 1 KM grid (Wolock) - This is the "officially published" version with metadata describing the methods.
  • 100m grid (Wolock) - This is a finer resolution grid of HLR. (arctar file)

NAWQA GIS ancillary data

• Surface water sites
• MRB basins
• Ground water networks

Political boundaries

• 1990 Counties - Use for cycle I processing
  • 1:2 million polygons - available from National Atlas
  • 30-m grid (SIR 2012-5207)
  • 1-km grid - (480 kb winzip file) || Metadata
  • 1990 Counties - Archive copies of grids previously used for cycle I
    • 30-m grid of 1:100K county boundaries - (59 mb tgz file)
    • 1-km grid of 1:2 million county boundaries - (470 kb tgz file) || Metadata
• 2001 Counties - Use for cycle II processing
  • 1:2 million polygons - (winzipped directory containing coverage, about 4 mb) || Metadata
  • 30-m grid (SIR 2012-5207)
  • 1-km grid - (464 kb winzip file) || Metadata
• Newberry Library's atlas of historical county boundaries
• Census Bureau's list of significant changes to counties 1970-present
• Protected areas data base (PAD) - parks, monuments, wilderness areas, reserves, preserves held by Federal, state, local, and private owners. - Contact James Falcone.

Population and metro areas

• Census geography
  • Block Group boundaries
    • 2000 BGs
      • Generalized boundaries for the U.S.
    • 1990 BGs
      • Generalized boundaries for the U.S.
      • TIGER/Line boundaries for States
      • TIGER/Line boundaries for 1994 NAWQA study units
  • Census Tract boundaries
    • 1990 Tracts
      • Generalized boundaries for the U.S.
    • 2000 Tracts
      • Generalized boundaries for the U.S.
  • Census area definitions
  • MSA/county cross reference (2005)
  • MSA/county cross reference (1993)
  • MSA polygon coverage - (717K)
  • Populated parts of all MSAs polygon coverage
• 2000 Census
  • 2000 population and housing by block group
  • 2000 population density - (100m grid)
  • Landscan 2000 - Data (80 mb tgz file)
  • 2000 population and housing unit density, based on BLOCK data - (100m grids) - Contact James Falcone.
• 1990 Census
  • 1990 population allocated to 2000 blocks, based on BLOCK data - (100m grid) - Comes with 2000 block data listed above. Contact James Falcone.
  • Percent change 1990-1997 - (map)
  • 1990 population and housing
  • 1990 population density - (100m grid)
  • CIESIN - 1990 population density
  • 1990 population by block group
  • 1990 STF 3A extract
• Populated places
  • All 26,000 places - (1,566K e00 file)
  • Places having more than 25,000 persons - (100K e00 file)
• 1980 Census
  • 1980 population
• Historical data
  • Minnesota Population Center historic demographic data

FIPS and ZIPS

• FIPS state/county lookup table
• ZIP code polygons (includes AK and HI), from ESRI data and maps, internal use only || 100-m grid (excludes AK and HI) || Metadata
• ZIP code points from ESRI data and maps, internal use only (includes AK and HI; geographic projection)

Natural features

• Hydrology
  • HUCS
    • 1:250K
    • 1:2 million
    • Current Watershed Boundary Dataset (WBD) 8- and 12-digit
  • National Hydrography Dataset (NHD)
  • NHD streams, nationwide coverage comprised of 15 regional tiles of data (Falcone)
  • Enhanced River Reach File 2.0 (ERF1_2)
  • Enhanced River Reach File 1.2 (ERF1)
  • Principal aquifers
    • U.S aquifers data (1:2,500,000)
    • Principal aquifer extents - Coverages | Excel file with info compiled by water use program (links to coverages in excel file are out of date)
  • Productive aquifers
  • Ground water regions
  • Ground water regions with unconsolidated watercourses
• Runoff - 1951-80 (HA-710)
• Recharge - OFR03-311
• Streamflow characteristics
  • Location and streamflow characteristics for gages located within Cycle I fixed-site basins (Wolock) - xls file
  • Location and streamflow characteristics for current and historical USGS stream gages
  • USGS streamgages linked to medium resolution NHD - Includes flow characteristics
• Soil characteristics (STATSGO)
  • 1 KM grid (Wolock) - This is the "officially published" version with metadata describing the methods.
  • 100 m grid (Wolock) - This is a finer resolution grid of the soil mapping units. It also has the supporting info tables, including HGBARB. When processing use only the MUIDs that have data (GOTDAT = 1) for each parameter. (arctar file)
  • Polygon coverage (Schwarz and Alexander)
  • Hydrologic group (Ruddy) - This is included in the 100m MUID grid, above.
  • USDA Soil Data Viewer
• Soil characteristics (SSURGO)
  • Mike Wieczorek has processed SSURGO data for every county available from NRCS. He has produced areal and depth weighted averages and has assembled the data by state as grids at 10-m resolution. Attributes include percent sand, silt, clay and organic matter; available water capacity; bulk density; field capacity; K-factor; KSAT; average horizon depth; and porosity. The data is DRAFT. Contact Mike for details.
• Ecoregions
  • Omernik (2003) - Current Level III
  • Omernik (1987) - Revised 1999
  • Omernik (1987) - Revised 1998
  • Omernik (1987)
  • Nutrient Ecoregions (2002) || Metadata
  • Level III Ecoregions (2000) || Metadata
  • Bailey
• Physiographic provinces
• Geology
  • Bedrock geology (King and Beikman)
  • Surficial geology (Hunt)
  • Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains
  • Digital state geologic maps
  • Preliminary integrated geologic map databases for the United States
• Climate
  • DAYMET data
  • PRISM 100 precipitation, min and max temperature data, 1895-1997 - (A set of ascii grids)
  • Point coverage of NWS cooperative network meteorological stations (Wolock) - coverage of sites where daily precipitation and temperature time series data have been collected. || Metadata
  • NWS coop network meteorological stations located within Cycle I fixed-site basins (Wolock) - xls file listing sites where daily precipitation and temperature time series data have been collected.
  • Hydroclimatic data network (HCDN)
  • Precip/temp normals points - (arctar format)
  • PRISM climate data (61-90 normals) - (Arc/INFO grid format)
  • NOAA precipitation frequency atlas
  • Precipitation analysis - NWS experimental product containing high resolution precipitation data
• Potential natural vegetation
• Major forest types

Agricultural

• Cropland data layers (CDL) - NLCD-based agricultural land cover released by USDA NASS. Crop-specific CDL can be used to study pesticide risk, epidemiology, transportation, fertilizer usage, and carbon dioxide flux and to monitor crop rotation patterns, land use changes, water resources and carbon emissions. The CDL are available at the USDA National Resources Conservation Service's Geospatial Data Gateway.
• Tillage Practices aggregated by watershed, USGS DS 573 (Nancy Baker)
• Harvested cropland, orchard, vineyard and pasture acreage and animal populations
• Crop groups
• Misc county level ag data (NASS)
• Ag chemicals
  • Estimates of nutrient inputs from fertilizer, manure, and atmospheric deposition
  • Herbicide use (1989); nitrogen fertilizer sales (1985-91); and agricultural expenses, land use, chemical use, livestock holdings, and cropping practices (1987)
  • Pesticides
• Comparison of 1992 Census of Agriculture and NLCD - Preliminary maps showing county-level comparisons of cropland, pasture/hay, orchards/vineyards, small grains, fallow land.
• Agricultural practices (NRI)
  • Comparison of NRI and various national land cover data sets
  • Data Series 157-164
  • Data Series 207-210
• Major Land Resources Areas

Land cover and land use

• Land use/land cover characterization for well networks (formerly CPG)
• NLCD 2001 v2 and NLCD 2006

  A new version of NLCD 2001 and NLCD2006 have been released (Feb 2011).
  See this page for updated information.

• NLCD 1992/2001 Retrofit Land Cover Change Product

  The 1992 and 2001 NLCD are not directly comparable so the change product was developed to offer land cover change information at Anderson Level 1. The change product is not a direct remapping - so the product doesn't reflect the coding you would expect based on the values of the 92 and 01 land cover classifications. The change product was made available for download at the MRLC website. No updates are planned.

• NLCD 2001

  Note: NLCD 2001 has been superseded by NLCD 2001 v2

  • National Land Cover Database 2001 (NLCD01) - The 30-m resolution "raw" NLCD 2001 is formatted as GRIDs and is organized into 4 quadrants.

    NLCD01_1 (635 MB) || Metadata
    NLCD01_2 (643 MB) || Metadata
    NLCD01_3 (489 MB) || Metadata
    NLCD01_4 (944 MB) || Metadata

  • NLCD 2001 1KM - "Raw NLCD 2001" 1-kilometer percent grids - 16 grids showing percent of each land cover plus 1 majority grid. (August 2007):
    NLCD 2001 1KM (80 MB) || Metadata
    
  • Comparison of NLCDE92 to NLCD 2001 for NAWQA basins. Contact James Falcone.

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• NLCDe 1992

  NLCDe 1992 30-m data set has been released to the public!

  • Enhanced National Land Cover Data 1992 (NLCDe 92) - The 30-m resolution NLCDe 92 served as NAWQA's primary source of nationally consistent mapped land cover during the first decade of sampling. The data set is formatted as GeoTIFF and is organized into 4 quadrants.

    NCLDe 92 Metadata
    Browse graphic, showing 4 quadrants of NLCDe 92 (jpg)
    NLCDe 92 quad 1 (365 MB)
    NLCDe 92 quad 2 (340 MB)
    NLCDe 92 quad 3 (284 MB)
    NLCDe 92 quad 4 (537 MB)
    Color map file for use with ArcInfo Grid || Layer file for use with ArcMap

  • NLCDE1KM - "NLCD Enhanced" 1-kilometer percent grids - 25 grids showing percent of each land cover plus 1 majority grid. The 1-km grids have not been released. (Revised September 2005):
    NLCDE1KM (37 MB) || Metadata

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• NLCDep0306

  NLCDep0306 30-m data set has been released to the public!

  • Enhanced National Land Cover Data 1992 revised with 1990 and 2000 population data to indicate urban development between 1992 and 2000 (NLCDep0306) - 30-m resolution data used to represent land use in the early 2000s before NLCD 2001 became available. (NLCDep0306 superseded NLCDep0905 and is significantly different from NLCDep0905.) The data set is formatted as GeoTIFF and is organized into 4 quadrants.

    NLCDep0306 Metadata
    Browse graphic, showing 4 quadrants of NLCDep0306 (jpg)
    NLCDep0306 quad 1 (366 MB)
    NLCDep0306 quad 2 (346 MB)
    NLCDep0306 quad 3 (284 MB)
    NLCDep0306 quad 4 (537 MB)
    Color map file for use with ArcInfo Grid || Layer file for use with ArcMap

  • NLCDEP1KM - "NLCDE revised with population" 1-kilometer percent grids - 28 grids showing percent of each land cover plus 1 majority grid. The 1-km grids have not been released. (Revised March 2006):
    

    NLCDEP1KM (38 MB) || Metadata

• NLCDep0905

  NLCDep0905 30-m data set has been released to the public!

  • Enhanced National Land Cover Data 1992 revised with 2000 population data to indicate urban development between 1992 and 2000 (NLCDep0905) - 30-m resolution data used to represent land use in the early 2000s before NLCD 2001 became available. (NLCDep0905 was superseded by NLCDep0306.) The data set is formatted as GeoTIFF and is organized into 4 quadrants.

    NLCDep0905 Metadata
    Browse graphic, showing 4 quadrants of NLCDep0905 (jpg)
    NLCDep0905 quad 1 (365 MB)
    NLCDep0905 quad 2 (346 MB)
    NLCDep0905 quad 3 (283 MB)
    NLCDep0905 quad 4 (537 MB)
    Color map file for use with ArcInfo Grid || Layer file for use with ArcMap

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• NLCD - "Raw NLCD" - 30-meter resolution - 4 regional grids, one for each quadrant of the U.S., giving national coverage of RAW NLCD land use. Available by request to Kerie Hitt, Naomi Nakagaki, or Curtis Price. (Revised August 2005).

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• GIRAS
  • USGS DS 240: Enhanced Historical Land-Use and Land-Cover Data Sets of the U.S. Geological Survey
  • Mining GIRAS: Improving on a national treasure of land use data. [Online proceedings from ESRI 2003 International User Conference]
  • GIRAS updated with 1990 and 2000 population data
  • Raw GIRAS - National 30m raster data set available from Curtis Price (5/2003)
• AVHRR - 1km resolution land cover characteristics database with seasonal land cover classification, based on the analysis of AVHRR images collected from March to October 1990.
• Major Land Uses (1970)
• Impervious Surface Areas - 1km resolution, prepared by NOAA

VOCs

• Summary of oxygenate content and benzene in motor gasoline in the U.S. - Contact Curtis Price if interested

EPA data

• TRI 1995 (OFR 99-78)
• EFTRI 1995-1997- Data (arctar format) | Metadata
• EPA Envirofacts and Data Download Service

Elevation data and derivatives

• NED - National Elevation Data
  • Official NED site - free seamless data up to 100-MB limit
  • Internal NED ftp site - 1 degree grids of NED for conterminous U.S., no size limit
  • 100m grids - bilinear resample of NED from 30m to 100m - nationwide coverage comprised of 3 tiles of data (ned100m_west, ned100m_cent, ned100m_east) (Falcone)
• EDNA - Elevation Derivatives for National Applications - sample data sets available

Geochemical

• Minerals Resources On-Line Spatial Data
• Downloadable data sets
• NURE - National Uranium Resource Evaluation - Hydrogeochemical and Stream Sediment Reconnaissance
• RASS - Rock Analysis Storage System
  • Geochemistry of soils
  • Geochemistry of unconsolidated sediments
• PLUTO
  • Geochemistry of igneous rocks
  • Geochemistry of soils
  • Geochemistry of sediments
• Chemical analyses of soils and other surficial materials

Trace elements

• Various ancillary data sets

Water use

• Public supply data for NAWQA cycle II study units - PSDB locations, point coverage of intakes/wells, UCMR sampling sites, UCMR providers - Contact Molly Maupin
• 1995 water use data for NAWQA study units - now includes data for 97 study units

Other sources of GIS data

• GIS data for water resources and List of spatial data sets for water
• National Atlas- map layers warehouse, a treasure trove of 1:2,000,000-scale data sets
• SPARROW modeling
• EPA Geospatial Data Clearinghouse
• Clean Air Markets (C-MAP)
• National Park Service
• USDA Geospatial Data Gateway
• Geography Network
• National Transportation Atlas
• The GIS Data Depot
• Fish and Wildlife Service List of Federal Government Spatial Data Sources
• National Renewable Energy Lab dynamic maps, GIS data and analysis tools