Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-06-20T04:58:29Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 25 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NAWQA_TE -127.88,22.97,-65.35,48.25 1999-01-01T00:00:00Z 1999-12-31T00:00:00Z 2013-04-22T04:00:00Z

This is a point coverage of the sampling sites for the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program Study-Unit investigations of Trace Elements for the conterminous United ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LC04_LANDUSE_5MIN -80.0,-21.0,-45.0,6.0 1995-01-01T00:00:00Z 1995-01-01T00:00:00Z 2012-08-10T04:00:00Z

Amazonia has been under considerable development pressure as croplands and pasture are established in areas formerly occupied by tropical forest and cerrado. Although this region is an important part ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BIGFOOT_FD -156.613,34.32,-72.25,71.2719 1999-01-01T00:00:00Z 2003-12-31T00:00:00Z 2012-07-19T04:00:00Z

The BigFoot project gathered field data for selected EOS Land Validation Sites in North America from 1999 to 2003. Data collected and derived for varying intervals at the BigFoot sites and archived ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBId0079_101 13.0,7.0,24.0,23.0 2012-06-11T04:00:00Z

The Lake Chad Dataset which is a detailed case study of the UNEP/FAO/ESRI Family was developed by UNEP/GRID, on behalf of the UNEP/Fresh Water Unit for the Lake Chad Commission on Sustainable Development. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBId0001_101 -20.0,-35.0,55.0,40.0 2012-06-07T04:00:00Z

These datasets (Africa Outline, Agricultural Landuse, Africa Soils, Vegetation, Surface Hydrography, Hydrologic Basins, Desertification Hazard Model) are part of the UNEP/FAO/ESRI Database project ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]bigfoot_landcove -156.613,-2.86,-54.96,71.2719 2000-01-01T00:00:00Z 2003-12-31T00:00:00Z 2012-04-17T04:00:00Z

The BigFoot project gathered data for nine EOS Land Validation Sites located from Alaska to Brazil from 2000 to 2003. Each site is representative of one or two distinct biomes, including the Arctic ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]bigfoot_npp_surfaces -156.613,-2.86,-54.96,71.2719 2000-01-01T00:00:00Z 2004-12-31T00:00:00Z 2012-04-17T04:00:00Z

The BigFoot project gathered Net Primary Production (NPP) data for nine EOS Land Validation Sites located from Alaska to Brazil from 2000 to 2004. Each site is representative of one or two distinct ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA_NASS_CROPLAND -170.0,22.0,-46.0,74.0 2010-01-01T00:00:00Z 2010-12-31T00:00:00Z 2011-04-22T04:00:00Z

The USDA, NASS Cropland Data Layer (CDL) is a raster, geo-referenced, crop-specific land cover data layer with a ground resolution of 30 meters. The CDL is produced using satellite imagery from the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]bigfoot_gpp_surfaces -156.613,-2.86,-54.96,71.2719 2000-01-01T00:00:00Z 2004-12-31T00:00:00Z 2010-09-08T04:00:00Z

The BigFoot project gathered Gross Primary Production (GPP) data for nine EOS Land Validation Sites located from Alaska to Brazil from 2000 to 2004. Each site is representative of one or two distinct ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]bigfoot_lai -156.613,-2.86,-54.96,71.2719 2000-01-01T00:00:00Z 2003-12-31T00:00:00Z 2010-09-08T04:00:00Z

The BigFoot project gathered leaf area index (LAI) data for nine EOS Land Validation Sites located from Alaska to Brazil from 2000 to 2003. Each site is representative of one or two distinct biomes, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_CCRS_LandCover95 -145.0,40.0,-50.0,80.0 1995-04-11T00:00:00Z 1995-10-31T00:00:00Z 2009-10-05T04:00:00Z

A new map of the land cover distribution of Canada has been produced through a cooperative project between CCRS and the Canadian Forest Service. Generated using ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EOSWEBSTER_US_County_Data -124.0,26.0,-66.0,50.0 1972-01-01T00:00:00Z 1998-12-31T00:00:00Z 2009-04-20T04:00:00Z

Annual crop data from 1972 to 1998 are now available on EOS-WEBSTER. These data are county-based acreage, production, and yield estimates published by the National Agricultural Statistics ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NRCS_NRI_SotL_URBANIZTION -127.87,22.88,-65.36,48.24157.56,49.18,-117.38,67.57-160.25,18.9,-154.76,22.22-67.96,17.67,-64.56,18.51144.54,13.23,145.9,15.29-170.84,14.16,-169.42,14.38 1997-07-01T00:00:00Z 1998-10-31T00:00:00Z 2008-01-31T05:00:00Z

The Urbanization maps contain preliminary 1997 NRI data as well as 1992 and earlier data. Some of the maps look at the amount of change in developed land area. The land may have been previously ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NRCS_NRI_SotL_WETLANDS -127.87,22.88,-65.36,48.24157.56,49.18,-117.38,67.57-160.25,18.9,-154.76,22.22-67.96,17.67,-64.56,18.51144.54,13.23,145.9,15.29-170.84,14.16,-169.42,14.38 1997-07-01T00:00:00Z 1998-10-31T00:00:00Z 2008-01-31T05:00:00Z

The Wetland maps use 1992 and earlier data. These maps show the location of different types of wetlands. The wetlands may be on crop, pasture, range, forest, developed or rural land. Some of the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EOSWEBSTER_US_County_Data_1 -124.0,26.0,-66.0,50.0 1990-01-01T00:00:00Z 1990-12-31T00:00:00Z 2007-02-15T05:00:00Z

This dataset provides county-level data for Nitrogen fertilizer applied to county croplands [1000 kg N/yr]. This includes only those crops used in an assessment of greenhouse gas production from US ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NRCS_NRI_SotL_WATER_QUALITY -127.87,22.88,-65.36,48.24157.56,49.18,-117.38,67.57-160.25,18.9,-154.76,22.22-67.96,17.67,-64.56,18.51144.54,13.23,145.9,15.29-170.84,14.16,-169.42,14.38 1997-07-01T00:00:00Z 1998-10-31T00:00:00Z 2006-11-20T05:00:00Z

All of the maps, figures and tables for NRI's water quality are taken from publications. Many of the publications discuss the use of fertilizer, pesticide, or manure. Several of the maps are taken ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BEA_Arable_Land 0.0,45.0,40.0,75.0 1987-01-01T00:00:00Z 1993-12-31T00:00:00Z 2006-05-26T04:00:00Z

This is the GIS data file for the Arable Lands for the Baltic Sea drainage basin region. The GIS data set is part of the Baltic Sea Region GIS Database and part of the Baltic Drainage Basin Project ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0447 -177.1,13.71,-61.48,76.63 1982-01-01T00:00:00Z T00:00:00Z 2006-02-03T05:00:00Z

"Census of Agriculture, 1992: Final County File" is an electronic system provides statistics from the 1992 Census of Agriculture in tabular form, along with comparative data from the 1987 and 1982 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0014 -177.1,13.71,-61.48,76.63 1960-01-01T00:00:00Z 1995-12-31T00:00:00Z 2005-11-17T05:00:00Z

Cash rents for U.S. farmland database consists of 3 Lotus 1-2-3 spreadsheets: Cash rents data per acre for farms, cropland and pasture for the Eastern States 1960-1995 and cash rents as a percent ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0016 -177.1,13.71,-61.48,76.63 1970-01-01T00:00:00Z 1979-12-31T00:00:00Z 2005-11-17T05:00:00Z

The "Land Use Changes, 1970's" database contains paired sample data on land use change for the decade of the 1970's for 135 fast growing counties and selected cities in the United States. Counties ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EOSWEBSTER_China_County_Data_5 70.83,15.06,137.97,56.58 1990-01-01T00:00:00Z 1990-12-31T00:00:00Z 2005-11-04T05:00:00Z

The Land Use dataset contains three variables which help describe the agricultural land use for China counties. The three variables are: 1) Cropland area (hectares), 2) Pastureland and Grassland area ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EOSWEBSTER_US_County_Data_4-5 -124.0,26.0,-66.0,50.0 1990-01-01T00:00:00Z 1990-12-31T00:00:00Z 2005-10-19T04:00:00Z

Two datasets provide geographic, land use and population data for US Counties within the contiguous US. Land area, water area, cropland area, farmland area, pastureland area and idle cropland area ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0021 -125.0,25.0,-67.0,49.0 1947-01-01T00:00:00Z 1990-12-31T00:00:00Z 2005-09-19T04:00:00Z

The Production and Efficiency Database contains U.S and State indexes of farm input use, production and efficiency by enterprise group from 1947 to 1990. The 48 files of the database are divided into ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA0047 -177.1,13.71,-61.48,76.63 1950-01-01T00:00:00Z 1994-12-31T00:00:00Z 2005-09-19T04:00:00Z

This database contains monthly temperature and precipitation records for 1950-94, aggregated by State and farm production region. The hardcopy tables for this database are contained in Weather and ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USDA_SCS_DIGITAL_SOILS -180.0,-15.0,-60.0,75.0 2005-03-08T05:00:00Z

The Soil Conservation Service (SCS) of the U.S. Department of Agriculture (USDA) has established three digital soil geographic data bases representing different intensities of soil mapping for the ...