Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-19T06:09:14Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 1557 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Davis_region_ortho 77.89,-68.62,78.18,-68.51 1997-02-11T00:00:00Z 1997-02-11T00:00:00Z 2013-05-17T04:00:00Z

The extent of the Davis region orthophoto is from Powell Point in the north to Ellis Narrows in the south and from Plough Island in the west and to the eastern end of Lake Stinear in the east. The ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GTOPO30 -180.0,-85.0,180.0,85.0 1996-12-01T00:00:00Z T00:00:00Z 2013-05-14T04:00:00Z

Digital elevation model (DEM) data are sampled arrays of surface elevations in raster form. A DEM provides elevation values in rows and columns, corresponding to a regular grid of points on the Earth's ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NALC -175.0,5.0,-60.0,72.0 1972-07-23T00:00:00Z 1992-12-31T00:00:00Z 2013-05-14T04:00:00Z

The North American Landscape Characterization (NALC) project is a component of the Landsat Pathfinder Program, which is part of a larger Pathfinder Program initiated by the National Aeronautics ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Tsunami_122604_SRTM 79.69,5.76,82.26,9.89 2013-05-14T04:00:00Z

The topography of the island nation of Sri Lanka is well shown in this color-coded shaded relief map generated with digital elevation data from the Shuttle Radar Topography Mission (SRTM). Two visualization ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_WELD -170.0,25.0,-74.0,79.0 2007-12-01T00:00:00Z 2008-11-31T00:00:00Z 2013-05-14T04:00:00Z

The Web-enabled Landsat Data (WELD) project is collaboration between the United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center and academic partner South Dakota ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HYDRO1k -180.0,-90.0,180.0,90.0 2013-05-13T04:00:00Z

HYDRO1k is a geographic database developed to provide comprehensive and consistent global coverage of topographically derived data sets, including streams, drainage basins and ancillary layers derived ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WORLD_MAPS -180.0,-90.0,180.0,90.0 1883-01-01T00:00:00Z T00:00:00Z 2013-05-13T04:00:00Z

The USGS provides a series of planetary maps featuring more than 750 titles. These include selected maps of the Moon, Venus, Mercury, Mars, and the moons of Jupiter. Planetary maps are available ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]worldview-2_23dec2010_ortho 73.556,-53.202,73.744,-53.013 2010-12-23T00:00:00Z 2010-12-23T00:00:00Z 2013-05-10T04:00:00Z

The images in these two directories are the result of a rigorous orthorectification of the panchromatic band and eight multispectral bands of the two WorldView-2 images of the east coast of Heard ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SIR-C_PRECISION -180.0,-60.0,180.0,60.0 1994-04-09T00:00:00Z 1994-10-11T00:00:00Z 2013-05-10T04:00:00Z

Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) is a joint project of the National Aeronautics and Space Administration (NASA), the German Space Agency, Deutsche Agentur ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_MAP_INDEX -180.0,17.0,-66.0,71.0 2013-05-10T04:00:00Z

Established in 1879, the U.S. Geological Survey (USGS) has Federal responsibility for preparing multipurpose maps and fundamental cartographic data to meet the requirements of users ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_EARTHSHOTS -180.0,-90.0,180.0,90.0 1972-01-01T00:00:00Z T00:00:00Z 2013-05-10T04:00:00Z

Earthshots is an ebook of before-and-after Landsat images (1972-present), showing recent environmental events and introducing remote sensing. Earthshots comes from the U.S. Geological Survey's EROS ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EOSWEBSTER_Global_Ref -180.0,-90.0,180.0,90.0 2013-05-07T04:00:00Z

The Global Model Reference Collection contains 3 datasets that have been used extensively in various biogeochemical process models, in addition to some basic data layers used in analyzing and aggregating ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_EROS_HDDS_RITA -100.0,22.0,-68.0,41.0 2005-09-15T00:00:00Z T00:00:00Z 2013-05-07T04:00:00Z

USGS EROS supported first responders and emergency services working in response to Hurricane Rita. EROS channeled vital imagery to state and local governments, FEMA, and other federal agencies. These ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_EROS_HDDS_SANDY -84.0,31.0,-72.0,44.0 2012-10-01T00:00:00Z 2012-10-31T00:00:00Z 2013-05-07T04:00:00Z

As Hurricane Sandy moved northward along the U.S. Atlantic coast in October 2012, U.S. Geological Survey scientists worked to determine where and how the storm's waves and surge might dramatically ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_EROS_HDDS_WILMA -98.0,10.0,-70.0,35.0 2013-05-07T04:00:00Z

USGS EROS supported first responders and emergency services working in response to Hurricane Wilma. EROS channeled vital imagery to state and local governments, FEMA, and other federal agencies. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SIC_266_267_ortho 73.56,-53.206,73.737,-53.005 2004-01-17T00:00:00Z 2004-01-25T00:00:00Z 2013-05-07T04:00:00Z

These IKONOS images of the east coast of Heard Island were acquired on the 17th and 25th of January 2004. These images have been used in project AAS2939 as the baseline for analysis and change detection ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_NED -177.1,13.71,-61.48,76.63 1999-02-01T00:00:00Z T00:00:00Z 2013-05-07T04:00:00Z

The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]drg -124.7,24.5,-67.9,49.3 2013-05-02T04:00:00Z

A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) topographic map. The scanned image includes all map collar information. The image inside the map ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]gls -180.0,-90.0,180.0,90.0 2013-05-02T04:00:00Z

The U.S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA) collaborated on the creation of the global land datasets using Landsat data from 1972 through 2008. NASA ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]DMA_DTED -180.0,-56.0,180.0,60.0 2000-02-01T00:00:00Z 2000-02-31T00:00:00Z 2013-05-02T04:00:00Z

The Shuttle Radar Topography Mission (SRTM) successfully collected Interferometric Synthetic Aperture Radar (IFSAR) data over 80 percent of the landmass of the Earth between 60 degrees North and 56 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SPACE_PHOTOS -180.0,-90.0,180.0,90.0 1968-04-04T00:00:00Z 1972-12-19T00:00:00Z 1981-01-01T00:00:00Z T00:00:00Z 1973-05-22T00:00:00Z 1974-02-08T00:00:00Z 1965-03-23T00:00:00Z 1966-11-15T00:00:00Z 2001-02-01T00:00:00Z T00:00:00Z 1984-10-05T00:00:00Z 1984-10-13T00:00:00Z 2013-05-02T04:00:00Z

Gemini photography was acquired between March 23, 1965 and November 15, 1966. The images were collected as part of the Synoptic Terrain Photography and the Synoptic Weather Photography experiments ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_DOQ -126.0,24.0,-66.0,49.0 2013-05-02T04:00:00Z

A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NAPP -126.0,24.0,-66.0,49.0 1987-01-01T00:00:00Z 2007-02-11T00:00:00Z 2013-04-29T04:00:00Z

The National Aerial Photography Program (NAPP) is an inter-agency Federal effort coordinated by the USGS, which uses NAPP products to revise maps. Other agencies have varied uses for these photographs, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NHAP -180.0,-90.0,180.0,90.0 2013-04-29T04:00:00Z

The National High Altitude Photography (NHAP) program, which was operated from 1980 - 1989, was coordinated by the U.S. Geological Survey as an interagency project to eliminate duplicate photography ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGSPHOTOS -180.0,-90.0,180.0,90.0 1937-04-01T00:00:00Z T00:00:00Z 2013-04-29T04:00:00Z

The U.S. Geological Survey (USGS) Aerial Photography data set includes over 2.5 million film transparencies. Beginning in 1937, photographs were acquired for mapping purposes at different altitudes ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Declassified_Satellite_Imagery_2_2002 -180.0,-90.0,180.0,90.0 2013-04-25T04:00:00Z

Declassified satellite images provide an important worldwide record of land-surface change. With the success of the first release of classified satellite photography in 1995, images from U.S. military ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEO_TABARIN_LOCALITIES -57.01,-62.48,-57.01,-62.48-57.12,-63.51,-57.12,-63.51 1998-02-01T00:00:00Z T00:00:00Z 2013-04-22T04:00:00Z

New outcrops of the Hope Bay Formation and Larsen Basin rocks have been exposed by the recent ice retreat on Tabarin Peninsula, Northern Antarctic Peninsula. Quartzose, very low-grade metasedimentary ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEO_MAP-POTTER -180.0,-90.0,180.0,-62.83 1999-01-01T00:00:00Z T00:00:00Z 2013-04-22T04:00:00Z

The Dallmann Geological Project: "Geological mapping of Potter Peninsula". Elaboration of a newly actualized geological map of Potter Peninsula, using sub-meter GPS techniques. All topographic, geologic ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]gis310 59.59,-74.58,86.52,-68.48 1999-01-01T00:00:00Z 2003-12-31T00:00:00Z 2013-03-26T04:00:00Z

The Australian Antarctic Data Centre digitises on-screen topographic features from satellite images as required for various projects and applications. Ice free areas (exposed rock) were digitised ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Landsat_8 -180.0,-82.71,180.0,82.74 2013-02-11T00:00:00Z T00:00:00Z 2013-03-14T04:00:00Z

This data set is a raster file containing global information for bands 1 through 11 for Landsat 8 Operational Land Imager (OLI) and Thermal Land Imager (TIRS).

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]geodata_0153 -33.19,-41.41,62.62,40.04 1988-01-01T00:00:00Z 1990-12-31T00:00:00Z 2013-03-08T05:00:00Z

ETOPO5 was generated from a digital data base of land and sea- floor elevations on a 5-minute latitude/longitude grid. The resolution of the gridded data varies from true 5-minute for the ocean floors, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_CTI_Toporama -141.0,42.0,-52.0,84.0 1945-01-01T00:00:00Z T00:00:00Z 2013-03-07T05:00:00Z

Toporama provides easy Internet access to free maps of Canada. This product is raster representation of part of the National Topographic Data Base (NTDB) at the 1:250 000 scale for all of Canada. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]MADIS_METSFC -170.0,5.0,-50.0,70.0-180.0,-90.0,180.0,90.0 2013-02-21T05:00:00Z

Surface land and maritime observing stations report various meteorological variables that describe the current weather. These variables include basic measurements such as temperature, relative humidity, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CIESIN_CHRR_NDH_MULTI_HFD -180.0,-58.0,180.0,85.0 2000-01-01T00:00:00Z 2000-01-01T00:00:00Z 2013-02-14T05:00:00Z

Global Multihazard Frequency and Distribution is a 2.5 minute grid presenting a simple multihazard index based solely on summated single-hazard decile values. The hazards of interest include cyclones, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CIESIN_SEDAC_NAGDC_PLACEII -180.0,-90.0,180.0,90.0 1990-01-01T00:00:00Z 2000-01-01T00:00:00Z 2013-02-13T05:00:00Z

The Population, Landscape, And Climate Estimates, Version 2 (PLACE II) dataset contains estimates of national-level aggregations of territorial extent and population size by biome, climate zone, coastal ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CIESIN_SEDAC_NAGDC_PLACEIII -180.0,-58.0,180.0,85.0 1990-01-01T00:00:00Z 1990-01-01T00:00:00Z 2000-01-01T00:00:00Z 2000-01-01T00:00:00Z 2010-01-01T00:00:00Z 2010-01-01T00:00:00Z 2013-02-13T05:00:00Z

The Population, Landscape, And Climate Estimates, Version 3 (PLACE III) data set contains estimates of national-level aggregations in urban, rural, and total designations of territorial extent and ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ISCGM_GLOBAL -180.0,-90.0,180.0,90.0 2013-02-11T05:00:00Z

The concept of Global Mapping, and the establishment of an international body for Global Mapping, was first proposed by the Ministry of Construction of Japan (MOC) in 1992; and in 1994 the Geospatial ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBId0262_101 29.0,-3.0,31.0,-1.0 1990-01-01T00:00:00Z 1994-01-01T00:00:00Z 2013-02-11T05:00:00Z

MICHIGAN STATE UNIVERSITY RWANDA SOCIETY-ENVIRONMENT PROJECT The objective of the project is to address natural resources management (NRM) issues in Rwanda through a collaborative program of training, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]larsemann_envmanagement_maps 75.9,-69.65,76.55,-69.16 2005-02-01T00:00:00Z 2005-04-01T00:00:00Z 2013-02-05T05:00:00Z

The Australian Antarctic Data Centre, in liaison with the Environment Protection and Policy section of the Australian Antarctic Division published two environmental management maps of the Larsemann ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BANd0107_113 102.28,10.07,107.98,14.86 2013-02-04T05:00:00Z

Digital Elevation Contour map of Cambodia at 100 meters contour interval produced from the Global Elevation ETOPO5 dataset.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]AST14DEM -180.0,-83.0,180.0,83.0 2001-03-06T00:00:00Z T00:00:00Z 2013-01-31T05:00:00Z

The ASTER Digital Elevation Model (DEM) is a product that is generated from a pair of ASTER Level-1A images. This Level-1A input includes bands-3N (nadir) and -3B (aft- viewing) from the Visible Near ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ASTGTM -180.0,-83.0,180.0,83.0 2000-01-01T00:00:00Z 2011-02-28T00:00:00Z 2013-01-31T05:00:00Z

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) was developed jointly by the U.S. National Aeronautics and Space Administration (NASA) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]AST14DMO -180.0,-83.0,180.0,83.0 2007-03-07T00:00:00Z T00:00:00Z 2013-01-31T05:00:00Z

The ASTER On-Demand L3 DEM and Orthorectified Images form a multi-file product that contains both the Digital Elevation Model (DEM), and the Orthorectified Image products. Each product delivery includes ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]naalsed -171.0,22.0,-54.0,80.0 2000-11-10T00:00:00Z 2010-12-31T00:00:00Z 2013-01-31T05:00:00Z

The North American Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) Land Surface Emissivity Database (NAALSED) covers the continent with 3,327 1 degree (?) x 1? tiles of 100-meter ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_ACS_AeroD -156.0,37.0,-13.0,90.0 2013-01-24T05:00:00Z

The AeroD web site is fully indexed and searchable allowing users to browse Canadian aeronautical publications. The supplements to the charts include the Canada Air Pilot (CAP), the Canada Flight ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UNIZH_AGREG -180.0,-90.0,180.0,90.0 2013-01-24T05:00:00Z

Snow, glaciers and permafrost in cold mountain areas such as the Swiss Alps are especially sensitive to changes in environmental conditions due to their proximity to melting conditions. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_ACS_CanAirPilot -142.0,41.0,-50.0,90.0 1942-11-24T00:00:00Z T00:00:00Z 2013-01-24T05:00:00Z

The Canada Air Pilot (CAP) contains aeronautical information that is pertinent to the conduct of the arrival or departure portion of flight: instrument approach procedures, standard instrument ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_ACS_CanFlightSupp -142.0,37.0,-13.0,90.0 1961-02-13T00:00:00Z T00:00:00Z 2013-01-24T05:00:00Z

The Canada Flight Supplement (CFS) is a joint civil/military publication. It contains information on Canadian and North Atlantic land aerodromes and heliports and is used for the planning ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_ACS_WaterAeroSupp -142.0,42.0,-50.0,90.0 1964-04-01T00:00:00Z T00:00:00Z 2013-01-24T05:00:00Z

The Canada Water Aerodrome Supplement (WAS) is a publication that provides tabulated, textual data and graphical information in support of Canadian VFR charts. The booklet contains an ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]Canada_ACS_EnrouteCharts -156.0,37.0,-13.0,90.0 1961-02-13T00:00:00Z T00:00:00Z 2013-01-24T05:00:00Z

The Enroute Low (LO) and High (HI) Altitude charts provide aeronautical information for instrument navigation in the low and high airway structure of the Canadian Domestic Airspace, the ...