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NAWQA GIS resources

2003 ARCHIVE of Ground Water GIS Ancillary Data

GIS Ancillary Data for 1991, 1994, 1997 Study units

All data files are tab-delimited text files. Point level files contain the 10,824 points in the NAWQAPT site coverage version July 25, 2002.

We processed data for these geographic units: sampling points, 500-m radius circular buffers around sampling points, 1000-m radius circular buffers around sampling points, and ground water study area polygons.

Sampling Points

• Soils ... Metadata || Data (v. 8/02/02)
  
• Climate ... Metadata || Data (v. 8/02/02)
  
• Hydrology ... Metadata || Data (v. 8/02/02)
  
• Principal Aquifers ... Metadata || Data (v. 8/02/02)
  
• Surficial Geology ... Metadata || Data (v. 8/05/02)
  
• Glaciated Quaternary Sediments ... Metadata || Data (v. 8/05/02)
  
• 1990/2000 Population ... Metadata || Data (v. 10/02/02)

500-m Buffers around Sampling Points

• Land Use from NLCDE (1992 NLCD Enhanced with GIRAS and TIGER data) ... Metadata || Data (v. 7/01/03)
• Land Use from GIRAS (updated with 1990 population) ... Metadata || Data (v. 8/07/02)
• Storage Tanks ... Metadata || Data (v. 7/25/02)
• 1990 Population ... Metadata || Data
• 2000 Population ... Metadata || Data

1000-m Buffers around Sampling Points

• Storage Tanks ... Metadata || Data (v. 7/25/02)

LUS and SUS Polygons

• Soils Characteristics ... Metadata || BND Data || TRG Data
  
• Agricultural Practices ... Metadata || BND Data || TRG Data

Older data archives.

Email: NAWQA National Synthesis GIS
GS-W NAWQA nsgis