Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-06-20T03:51:09Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 16 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-SASSX-L2WAF -180.0,-90.0,180.0,90.0 1978-07-07T00:00:00Z 1978-10-09T00:00:00Z 2013-06-16T04:00:00Z

Contains Seasat-A Scatterometer (SASS) wind vector measurements for the entire Seasat mission, from July 1978 until October 1978. The data are global and presented chronologically in by swath. Each ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-SSCH3-01XM1 -180.0,-70.0,180.0,70.0 1978-07-07T00:00:00Z 1978-10-10T00:00:00Z 2013-06-16T04:00:00Z

Contains monthly averaged ocean surface wind stress derived from Seasat-A Scatterometer (SASS) wind retrievals, from July 1978 until October 1978, gridded on a 2.5-degree by 2.5 degree global grid. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PODAAC-SASSX-BYSN0 -180.0,-78.3,180.0,78.3 1978-07-07T00:00:00Z 1978-10-10T00:00:00Z 2013-06-16T04:00:00Z

This SEASAT-A Scatterometer (SASS) 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]NSIDC-0053 -60.0,60.0,-20.0,72.0 1978-06-01T00:00:00Z 1986-09-30T00:00:00Z 2011-08-01T04:00:00Z

The Ice Altimetry System (IAS) CD-ROM contains surface elevations of the Antarctic and Greenland ice sheets derived from Seasat and GEOSAT radar altimetry data. The Seasat data were collected for ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NASA_GSFC_OIB_ICE_ALTIMETRY -15.0,59.0,-74.0,82.0-180.0,-82.0,180.0,-65.0 1978-07-01T00:00:00Z 1978-10-31T00:00:00Z 1985-04-01T00:00:00Z 1986-09-30T00:00:00Z 1986-11-01T00:00:00Z 1989-09-30T00:00:00Z 1991-08-01T00:00:00Z T00:00:00Z 1992-09-01T00:00:00Z T00:00:00Z 2011-07-25T04:00:00Z

The Oceans and Ice Branch of NASA's Goddard Space Flight Center has processed satellite radar altimetry and aircraft laser altimetry over the continental ice sheets of Greenland and Antarctica ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Scatt_Climate_Record_Pathfinder -180.0,-90.0,180.0,90.0 1978-05-01T00:00:00Z 2002-12-31T00:00:00Z 2011-06-02T04:00:00Z

Enhanced resolution sigma-0 image data from various historic and present radar scatterometers along with derived products such as sea ice extent, sea ice motion, improved ambiguity selection, melt ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ADF_PDRS -180.0,-90.0,180.0,-60.0-180.0,60.0,180.0,90.0 1978-07-24T00:00:00Z 1978-08-11T00:00:00Z 2011-04-15T04:00:00Z

The PDRS (Polar Data Reference Set) is a subset of the Seasat Altimeter sensor data record (SDR) archive maintained at the ADF (Algorithm Development Facility), part of the EODC (Earth Observation ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Scatterometer_Iceberg_Tracking -180.0,-80.0,180.0,-50.0 1978-06-01T00:00:00Z T00:00:00Z 2010-07-02T04:00:00Z

Positions of large (typically greater than 10 nmi) tabular icebergs around Antarctica derived from enhanced resolution historic and present scatterometer data.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0223 -52.0,61.0,-30.0,72.0 1978-01-01T00:00:00Z 1988-12-31T00:00:00Z 2010-03-09T05:00:00Z

Southern Greenland ice sheet elevation change estimates are derived from SEASAT and GEOSAT radar altimetry data from 1978 to 1988. Data are confined to 61-72 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EARTH_CRUST_TECT_CDDIS_SLR_ANL4 -180.0,-90.0,180.0,90.0 1976-06-01T00:00:00Z T00:00:00Z 2009-09-29T04:00:00Z

Satellite Laser Ranging precisely measures laser signals bounced off reflectors mounted on satellites. The satellite orbit and timing of the signal is very precise. This method can fix ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]CANEMRCCRSSEASATSAR -141.0,41.0,-52.0,70.0 1978-07-07T00:00:00Z 1978-10-10T00:00:00Z 2009-03-16T04:00:00Z

SEASAT was launched on June 28, 1978, carrying a five sensor payload, and operated successfully until a power failure brought transmission to a stop on October 10, 1978. Its height and ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDDIS_SLR_data -180.0,-90.0,180.0,90.0 1976-01-01T00:00:00Z T00:00:00Z 2008-12-04T05:00:00Z

In Satellite Laser Ranging (SLR), a short pulse of coherent light generated by a laser (Light Amplification by Stimulated Emission of Radiation) is transmitted in a narrow beam to illuminate corner ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Seasat_scatt_sigma0_images -180.0,-90.0,180.0,90.0 1978-06-30T00:00:00Z 1978-09-10T00:00:00Z 2008-07-11T04:00:00Z

This Seasat scatterometer (SASS) data set consists of enhanced resolution radar backscatter (sigma0) images of the Earth's surface. Images are generated on polar stereographic and Lambert ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GFZ-GRIM4-C -180.0,-90.0,180.0,90.0 2006-10-06T04:00:00Z

GRIM4-C global gravity field models are based on the analysis of satellite orbit perturbations, evaluating optical, doppler and laser tracking data of about 30 satellites, combined with 1degx1deg ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SEASAT_SAR -31.0,33.0,18.0,70.0 1978-07-11T00:00:00Z 1978-10-10T00:00:00Z 2006-05-05T04:00:00Z

Seasat was launched on June 28, 1978 carrying the first imaging Synthetic Aperture Radar (SAR) system used as a scientific sensor from earth orbit. A SAR antenna (2m x 10m) was mounted on the spacecraft ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UK-RAE-RAE-0017 -25.0,-35.0,20.0,70.0 1978-06-26T00:00:00Z 1978-10-10T00:00:00Z 1996-09-19T04:00:00Z

The Seasat SAR mission took place from the 26th June to 10th October 1978. The SAR was an L-band HH polarisation; the resolution was 25m; the swath was 100km; and the antenna had a depression angle ...