Global Change Master Directorygsfc-gcmduso@mail.nasa.gov502013-05-22T01:09:10Zgtos Search: Platformshttp://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 12473 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]AVHRR_GLOBAL_10-DAY_COMPOSITESAVHRR 1-km Global Land 10-Day Composites-180.0,-90.0,180.0,90.01992-04-01T00:00:00ZT00:00:00Z2013-05-21T04:00:00ZThe Advanced Very High Resolution Radiometer (AVHRR) 1-km Global Land 10-Day Composites data set project is a component of the National Aeronautics and Space Administration (NASA) AVHRR Pathfinder ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]glctsGlobal Land Cover Test Sites-180.0,-81.0,180.0,81.01972-07-23T00:00:00ZT00:00:00Z2013-05-21T04:00:00ZThe Global Land Cover Test Sites (GLCTS) project is a component of the National
Aeronautics and Space Administration's Landsat Pathfinder Program. Pathfinder
projects focus on the application of ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HELLERMANHellerman and Rosenstein Global Wind Stress Data-180.0,-90.0,180.0,90.01870-01-01T00:00:00Z1976-12-31T00:00:00Z2013-05-20T04:00:00ZThis data set contains monthly averaged wind stress over the global
ocean for the years 1870 through 1976. The data are given on a 2 deg
latitude x 2 deg longitude grid. Monthly data for each month ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SIPEX_II_NAMENumerical Atmospheric dispersion Modeling Environment - an operational particle dispersion model using the Met Office Unified Model and ECMWF Numerical Weather Prediction meteorology data - SIPEX II data119.0,-67.0,150.0,-42.02012-09-14T00:00:00Z2012-11-05T00:00:00Z2013-05-20T04:00:00ZThis record contains a collection of maps of integrated particle density at different altitudes. These images were produced from the gridded dataset described in the metadata record with the ID "SIPEX_II_NAME_Gridded". ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SIPEX_II_NAME_GriddedNumerical Atmospheric dispersion Modeling Environment - an operational particle dispersion model using the Met Office Unified Model and ECMWF Numerical Weather Prediction meteorology data - raw, gridded SIPEX II data119.0,-67.0,150.0,-42.02012-09-14T00:00:00Z2012-11-05T00:00:00Z2013-05-20T04:00:00ZThis record contains the source, gridded data used to produce the maps described in the metadata record with the ID "SIPEX_II_NAME". See the provided URL.
The UK Met Office's Numerical Atmospheric-dispersion ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]casey_quarry_feb2013Survey of the face of the quarry at Casey, Antarctica, February 2013110.519,-66.282,110.521,-66.2812013-02-10T00:00:00Z2013-02-10T00:00:00Z2013-05-20T04:00:00ZThis dataset is differentially corrected GPS data resulting from a survey of the quarry face at Casey station on 10 February 2013.
The survey was done by Dan Jones, Bec McWatters and Johan Mets of ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-GEOS3-AGDRAGEOS-3 ALTIMETER GEOPHYSICAL DATA RECORD 1975-1978-180.0,-90.0,180.0,90.01975-04-14T00:00:00Z1978-12-02T00:00:00Z2013-05-17T04:00:00ZThese data consist of Geos-3 altimeter measurements produced by NOAA/NODC/Laboratory for Satellite Altimetry. The dataset contains 5,006,956 altimetric sea surface heights and supporting information ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Davis_region_orthoOrthophoto of the Davis region (East Antarctica) produced in 201277.89,-68.62,78.18,-68.511997-02-11T00:00:00Z1997-02-11T00:00:00Z2013-05-17T04:00:00ZThe 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?[AADC]SIPEX_II_MAX-DOASTrace-gas profiles of the boundary layer from Multi-Axis Differential Optical Spectroscopy MAX-DOAS collected during the SIPEX II voyage of the Aurora Australis, 2012119.0,-67.0,150.0,-42.02012-09-14T00:00:00Z2012-11-05T00:00:00Z2013-05-17T04:00:00ZThe current data set contains spectral atmospheric measurements from:
- Multi-Angle Differential Optical Absorption Spectrometer (MAX-DOAS) - built in-house at NIWA Lauder by Dr Karin Kreher, Mr Paul ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-DYNTO-1D1M1AVISO Level 4 Absolute Dynamic Topography for Climate Model Comparison-180.0,-90.0,180.0,90.01992-10-01T00:00:00Z2010-12-30T00:00:00Z2013-05-16T04:00:00ZThis dataset contains absolute dynamic topography (similar to sea level but with respect to the geoid) binned and averaged monthly on 1 degree grids. The coverage is from October 1992 to December ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]199899010Aurora Australis Voyage 1 (FIRE) 1998-99 Underway Data140.0,-70.0,160.0,-42.01998-07-14T00:00:00Z1998-07-30T00:00:00Z2013-05-16T04:00:00ZThis dataset contains the underway data collected during the Aurora Australis Voyage 1 1998-99. This was a dedicated marine science cruise aimed at researching winter-time oceanographic, glaciological, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]199798030Aurora Australis Voyage 3 1997-98 Underway Data145.0,-60.0,160.0,-40.01997-11-14T00:00:00Z1997-11-28T00:00:00Z2013-05-16T04:00:00ZThis dataset contains the underway data collected during the Aurora Australis Voyage 3 1997-98. This was a Macquarie Island changeover and resupply voyage. Underway (meteorology, fluorometer, thermosalinograph ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]199798040Aurora Australis Voyage 4 (SEXY) 1997-98 Underway Data60.0,-70.0,160.0,-40.01997-11-29T00:00:00Z1998-01-22T00:00:00Z2013-05-16T04:00:00ZThis dataset contains the underway data from the Aurora Australis Voyage 4 (SEXY) 1997-98. This voyage was a part resupply/changeover, part seal survey cruise, which visited Casey, Davis, Mawson and ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]199798050Aurora Australis Voyage 5 1997-98 Underway Data60.0,-70.0,150.0,-40.01998-01-27T00:00:00Z1998-02-23T00:00:00Z2013-05-16T04:00:00ZThis dataset contains the underway data logged during the Aurora Australis Voyage 5 of the 1997-98 season. The purpose of this voyage was to resupply Mawson and retrieve expeditioners from Davis. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]199798060Aurora Australis Voyage 6 (SNARK) 1997-98 Underway Data140.0,-60.0,150.0,-40.01998-02-28T00:00:00Z1998-04-01T00:00:00Z2013-05-16T04:00:00ZThis dataset contains the underway data collected during the Aurora Australis Voyage 6 1997-98. This was a dedicated marine science cruise researching Subantarctic oceanography. Underway (meteorological, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]199798070Aurora Australis Voyage 7 (PICCIES) 1997-98 Underway Data75.0,-70.0,160.0,-40.01998-04-03T00:00:00Z1998-05-22T00:00:00Z2013-05-16T04:00:00ZThis dataset contains the underway data collected during the Aurora Australis Voyage 7 1997-98. This was a marine science cruise, which also visited Davis, Casey and Macquarie Island. The marine science ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-ERS1B-SNEN0ERS-1 Gridded Level 3 Enhanced Resolution Sigma-0 from BYU-180.0,-79.7,180.0,88.21992-01-01T00:00:00Z1996-05-17T00:00:00Z2013-05-16T04:00:00ZThis European Remote Sensing (ERS) Sigma-0 dataset is generated by the Scatterometer Climate Record Pathfinder (SCP) project at Brigham Young University (BYU) and is generated using a Scatterometer ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-ERS2B-SNEN0ERS-2 Gridded Level 3 Enhanced Resolution Sigma-0 from BYU-180.0,-79.7,180.0,88.21996-06-03T00:00:00Z2001-01-30T00:00:00Z2013-05-16T04:00:00ZThis European Remote Sensing (ERS) Sigma-0 dataset is generated by the Scatterometer Climate Record Pathfinder (SCP) project at Brigham Young University (BYU) and is generated using a Scatterometer ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SIPEX_II_HalocarbonsIn-situ Halocarbon trace-gas concentrations measured by the Dirac GC-ECD during the SIPEX II voyage of the Aurora Australis, 2012119.0,-67.0,150.0,-42.02012-09-14T00:00:00Z2012-11-05T00:00:00Z2013-05-16T04:00:00ZThis data set contains in-situ halocarbon atmospheric measurements of CH3I, CHCl3, CH3CCl3, CCl4, CH2Br2, C2Cl4, CHBr3 made using a Gas Chromatograph - Electron Capture Detector (GC-ECD) known as ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_OMPIXCOR_V003OMI/Aura Global Ground Pixel Corners 1-Orbit L2 Swath 13x24km V003 (OMPIXCOR) at GES DISC-180.0,-90.0,180.0,90.02004-10-01T00:00:00ZT00:00:00Z2013-05-16T04:00:00ZThe Version-3 Aura/OMI Pixel Corner Product, OMPIXCOR, is now available from the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC)for the public access.(http://disc.gsfc.nasa.gov/Aura/OMI/ompixcor_v003.shtml ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_OMPIXCORZ_V003OMI/Aura Zoom-in Ground Pixel Corners 1-Orbit L2 Swath 13x12km V003 (OMPIXCORZ) at GES DISC-180.0,-90.0,180.0,90.02004-10-06T00:00:00ZT00:00:00Z2013-05-16T04:00:00ZThe Version-3 Aura/OMI Zoom-in Pixel Corner Coordinates and Pixel Size Product, OMPIXCORZ, is available (http://disc.gsfc.nasa.gov/Aura/OMI/ompixcorz_v003.shtml) from the NASA Goddard Earth Sciences ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KPDC_SVWFOVS_1998Sea-viewing Wide Field-of-view Sensor in Antarctic, Arctic, Korea Peninsula at 19980.5,-85.0,180.0,-60.0132.47363,32.62087,122.32129,43.739353-1.921875,59.431072,-88.94531,84.57471998-01-01T00:00:00Z1998-12-31T00:00:00Z2013-05-16T04:00:00ZThe SeaWiFS is designed to look at our planet from space to better understand it as a system in both behavior and evolution.http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KPDC_SVWFOVS_2001Sea-viewing Wide Field-of-view Sensor in Antarctic, Arctic, Korea Peninsula at 20010.5,-85.0,180.0,-60.0132.47363,32.62087,122.32129,43.739353-1.921875,59.431072,-88.94531,84.57472001-01-01T00:00:00Z2001-12-31T00:00:00Z2013-05-16T04:00:00ZThe SeaWiFS is designed to look at our planet from space to better understand it as a system in both behavior and evolution.http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KPDC_SVWFOVS_2006Sea-viewing Wide Field-of-view Sensor in Antarctic, Arctic, Korea Peninsula at 20060.5,-85.0,180.0,-60.0132.47363,32.62087,122.32129,43.739353-1.921875,59.431072,-88.94531,84.57472006-01-01T00:00:00Z2006-12-31T00:00:00Z2013-05-16T04:00:00ZThe SeaWiFS is designed to look at our planet from space to better understand it as a system in both behavior and evolution.http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KPDC_SVWFOVS_2008Sea-viewing Wide Field-of-view Sensor in Antarctic, Arctic, Korea Peninsula at 20080.5,-85.0,180.0,-60.0132.47363,32.62087,122.32129,43.739353-1.921875,59.431072,-88.94531,84.57472008-01-01T00:00:00Z2008-12-31T00:00:00Z2013-05-16T04:00:00ZThe SeaWiFS is designed to look at our planet from space to better understand it as a system in both behavior and evolution.http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SIPEX_II_MercuryTotal and methyl- mercury analysis of sea ice, seawater, snow, and brine samples collected during the SIPEX II voyage of the Aurora Australis, 2012119.0,-67.0,150.0,-42.02012-09-27T00:00:00Z2012-10-28T00:00:00Z2013-05-16T04:00:00ZSample collection:
Seawater samples were taken from the trace metal rosette system from ten different depths. Seawater samples from just underneath the ice were collected at the trace metal site using ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]AK_AVHRRAlaska AVHRR Twice-Monthly Composites-179.0,51.0,-116.0,70.01990-06-16T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZThe goal of the Alaska Advanced Very High Resolution Radiometer (AVHRR) project is to compile a time series data set of calibrated, georegistered daily observations and twice-monthly maximum normalized ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USAVHRRConterminous U.S. AVHRR Bi-Weekly Composites-125.0,23.0,-56.0,50.01989-01-04T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZThe goal of the Conterminous U.S. AVHRR project is to compile a
comprehensive time series data set of calibrated, georegistered daily
observations and biweekly maximum normalized difference ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_TRMM_3B42_daily_V7Daily TRMM and Others Rainfall Estimate (3B42 V7 derived)-180.0,-50.0,180.0,50.01997-12-31T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZThe Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_TRMM_3B42RT_daily_V7Daily TRMM and Others Rainfall Estimate (3B42RT V7 derived)-180.0,-50.0,180.0,50.02000-03-01T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZThe Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GTOPO30Global 30-Arc-Second Elevation Data Set-180.0,-85.0,180.0,85.01996-12-01T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZDigital 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]GES_DISC_GSSTFM_3Goddard Satellite-Based Surface Turbulent Fluxes, 0.25x0.25 deg, Monthly Grid, V3, (GSSTFM), at GES DISC-180.0,-90.0,180.0,90.01987-07-01T00:00:00Z2008-12-31T00:00:00Z2013-05-14T04:00:00ZThese data are the Goddard Satellite-based Surface Turbulent Fluxes Version-3 Dataset recently produced through a MEaSUREs funded project led by Dr. Chung-Lin Shie (UMBC/GEST, NASA/GSFC), converted ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_HIRMLS3IWC_V002HIRDLS-MLS/Aura Level 3 Ice Water Content V002 (HIRMLS3IWC) at GES DISC-180.0,-80.0,180.0,90.02005-02-01T00:00:00Z2007-12-31T00:00:00Z2013-05-14T04:00:00ZHIRMLS3IWC is the Joint EOS High Resolution Dynamics Limb Sounder (HIRDLS) and Microwave Limb Sounder (MLS) monthly 10 deg lat x 20 deg lon gridded product for ice water content (IWC) data. This is ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NALCNorth American Landscape Characterization-175.0,5.0,-60.0,72.01972-07-23T00:00:00Z1992-12-31T00:00:00Z2013-05-14T04:00:00ZThe 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_SRTMShuttle Radar Topography Mission (SRTM) Elevation Data for the Island Nation of Sri Lanka79.69,5.76,82.26,9.892013-05-14T04:00:00ZThe 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]GES_DISC_TRMM_3B42_V7TRMM 3-Hourly 0.25 deg. TRMM and Other-GPI Calibration Rainfall Data-180.0,-50.0,180.0,50.01997-12-31T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZThe Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_TRMM_3B43_V7TRMM and Other Sources Rainfall Product (TRMM Product 3B43)-180.0,-50.0,180.0,50.01998-01-01T00:00:00ZT00:00:00Z2013-05-14T04:00:00ZThe Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]1_250_LULCUSGS Land Use and Land Cover (LULC) Data-125.0,25.0,-67.0,48.01981-04-28T00:00:00Z1992-03-04T00:00:00Z2013-05-14T04:00:00ZThe National Mapping Program, a component of the U. S. Geological Survey (USGS), produces and distributes land use and land cover maps and digitized data for the conterminous U.S. and Hawaii. Land ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_UDRPUrban Dynamics Research Program: Analysis of Land Use Change in Urban Environments-177.1,13.71,-61.48,76.632013-05-14T04:00:00ZThe Urban Dynamics project looks at land use change in urban environments in order to provide a historical perspective of land use change and an assessment of the spatial patterns, rates, correlation, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_WELDWeb-enabled Landsat Data Sets-170.0,25.0,-74.0,79.02007-12-01T00:00:00Z2008-11-31T00:00:00Z2013-05-14T04:00:00ZThe 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]CEOS_CalVal_Test_Sites-Algeria3CEOS Cal Val Test Site - Algeria 3 - Pseudo-Invariant Calibration Site (PICS)5.22,29.09,10.01,31.361972-08-11T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Sites-Algeria5CEOS Cal Val Test Site - Algeria 5 - Pseudo-Invariant Calibration Site (PICS)-1.32,29.24,4.24,32.791972-08-15T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-Dome_C-AntarcticaCEOS Cal Val Test Site - Dome C, Antarctica - Instrumented Site123.0,-76.6,131.18,-74.51972-12-06T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-Dunhuang-ChinaCEOS Cal Val Test Site - Dunhuang, China - Instrumented Site91.98,39.0,96.52,41.451975-04-15T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-Frenchman_Flat-USACEOS Cal Val Test Site - Frenchman Flat, USA - Instrumented Site-115.9,36.7,-115.8,36.91972-08-09T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-Ivanpah_Playa-USACEOS Cal Val Test Site - Ivanpah Playa, USA - Instrumented Site-115.5,35.45,-115.3,35.651972-08-26T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-La_Crau-FranceCEOS Cal Val Test Site - La Crau, France - Instrumented Site1.92,41.86,6.49,45.631972-08-16T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-Libya1CEOS Cal Val Test Site - Libya 1 - Pseudo-Invariant Calibration Site (PICS)12.19,23.44,14.83,25.761973-01-15T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Site-Mauritania1CEOS Cal Val Test Site - Mauritania 1 - Pseudo-Invariant Calibration Site (PICS)-10.74,17.74,-7.9,21.261972-09-26T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEOS_CalVal_Test_Sites-Mauritania2CEOS Cal Val Test Site - Mauritania 2 - Pseudo-Invariant Calibration Site (PICS)-10.42,18.92,-7.52,22.671972-09-26T00:00:00ZT00:00:00Z2013-05-13T04:00:00ZOn the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) ...