AE_SI25 Cavalieri, D. J., T. Markus, and J. C. Comiso. 20040101 2 Boulder, Colorado USA NSIDC: National Snow and Ice Data Center http://nsidc.org/data/ae_si25.html The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument on the NASA Earth Observing System (EOS) Aqua satellite provides global passive microwave measurements of land, ocean, and atmospheric variables for the investigation of water and energy cycles. This Level-3 gridded product (AE_SI25) includes brightness temperatures at 6.9 through 89.0 GHz and sea ice concentrations. Data are mapped to a polar stereographic grid at 25 km spatial resolution. All variables include daily ascending averages, daily descending averages, and daily averages. Data are stored in HDF-EOS format and are available from 19 June 2002 to present via FTP. scientific research Cavalieri, D. J., T. Markus, and J. C. Comiso. 20040101 Boulder, Colorado USA NSIDC: National Snow and Ice Data Center http://nsidc.org/data/docs/daac/ae_si25_25km_tb_and_sea_ice.gd.html 20020619 Unknown publication date In work Unknown -180 180 90 -90 NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration EARTH SCIENCE > Spectral/Engineering > Microwave > Brightness Temperature EARTH SCIENCE > Spectral/Engineering > Microwave > Microwave Imagery NASA Global Change Master Directory (GCMD) Project Keywords EOS > Earth Observing System NASA Global Change Master Directory (GCMD) Instrument Keywords AMSR-E > Advanced Microwave Scanning Radiometer-EOS NASA Global Change Master Directory (GCMD) Platform Keywords AQUA > Earth Observing System, AQUA ISO 19115 Topic Categories climatologyMeteorologyAtmosphere None AE_SI25 AMSR-E Antarctic Sea Ice Aqua Arctic Sea Ice BRIGHTNESS TEMPERATURES DAAC EOSDIS EOS PM-1 Imagery Leads Modified Bootstrap Algorithm Modified NASA Team Algorithm NASA NSIDC Passive Microwave Radiation Passive Microwave Sea Ice Data Polar Sea Ice Polynyas Radiance Remote Sensing Sea Ice Concentrations Sea Ice Extents Sea Ice Variability Southern Ocean Tbs NASA Global Change Master Directory (GCMD) Location Keywords Continent > Antarctica Geographic Region > Arctic Geographic Region > Polar Earth Observing System, AQUA AQUA Advanced Microwave Scanning Radiometer-EOS AMSR-E 4 NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Spectral/Engineering > Microwave > Brightness Temperature NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Spectral/Engineering > Microwave > Microwave Imagery None None NSIDC User Services National Snow and Ice Data Center mailing

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Boulder CO 80309-0449 USA 1 303 492-6199 1 303 492-2468 nsidc@nsidc.org AE_SI25 NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. HDF-EOS http://nsidc.org/data/amsre/order.html None 20130122 20130122 NSIDC User Services National Snow and Ice Data Center mailing

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Boulder CO 80309-0449 USA 1 303 492-6199 1 303 492-2468 nsidc@nsidc.org FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002