Central Nebraska Basins NAWQA Study Unit - CNBR GIS Data

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NAWQA Cycle II sampling sites – Geographic coordinates NAD83 horizontal datum

• Spreadsheet of sites
• Shapefile
• Arc export (*.e00) (zipped)

Physical and Cultural Features

• Major land resource areas (MLRA)
• Principal aquifers
• Topographic regions

Physiography

• Average annual runoff in the United States, 1951-80
• Hydrologic landscape regions of the United States
• National Hydrography Dataset (NHD)
• Physiographic divisions of the conterminous U. S.

Geology

• Bedrock geology
• Configuration of the Base of the Principal Aquifer, 1979
• Glacial till
• Ground-water regions
• Precambrian Rocks, Configuration of Precambrian Rocks in Nebraska
• Precambrian Rocks, Depth to Precambrian Rocks in Nebraska
• Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains
• Thickness of the Principal Aquifer

Soils

• Soil Survey Geographic (SSURGO) Database
• State Soil Geographic (STATSGO) Database

Population

• United States Census Bureau - Census 2000 Data for the State of Nebraska

Land use and management practices

• 1:250,000 Scale Landuse/Landcover GIRAS Spatial Data
• National Agricultural Statistics Service (NASS) – 2002 Census of Agriculture- Volume 1 Chapter 2: Nebraska County Level Data
• NASS – Agricultural Chemical Use Database
• NASS – Cropland Data Layer
• The National Center for Food and Agricultural Policy (NCFAP) - Pesticide Use Database
• National land cover dataset (NLCD)
• Nebraska - Natural resources inventory
• Nebraska State Data Center - Census of Agriculture

Climate

• High Plains Regional Climate Center – University of Nebraska - Lincoln
• National Climatic Data Center
• PRISM - Nebraska Precipitation Data/Maps

Streamflow

• Elkhorn River at Waterloo, NE
• Dismal River near Thedford, NE
• Maple Creek near Nickerson, NE
• Platte River at Louisville, NE

Lakes and Wetlands

• NDNR Dams Inventory Database
• Lakes
• National Wetlands Inventory

Water use

• Estimated Use of Water in the United States in 2000

Environmental Subunits

• Level III Ecoregions
• Level IV Ecoregions