NASA JPL Physical Oceanography Distributed Active Archive Center

nasa-podaac-cryosat2_l2_ost_igdr

Cryosat-2 Altimeter Interim Geophysical Data Record

These data are the Low Rate Mode (LRM) CryoSat-2 altimeter Interim Geophysical Data Record provided by NOAA. It contains significant wave height and all required parameters to calculate sea surface height anomalies. There are no SAR or interferometric SAR data within this data set. The data are available approximately 2-3 days after measurement and are produced on a best effort basis. Since this is a Level-2 data set the spatial format is swath/along-track. These data are distributed by the NOAA National Environmental Satellite Data and Information Service (NESDIS) and you will be redirected there to obtain the data. CryoSat-2 is an European Space Agency (ESA) mission designed to measure ice thickness and extent, but the instrumentation on the satellite does allow for the measurement of sea surface height as well. CryoSat-2 can operate in 3 modes: LRM, SAR and SARIn. As stated earlier this is the LRM data, which functions similarly as an altimeter like those on Jason-1 or Envisat. The SAR mode can measure ice thickness over flat surfaces and has a very high spatial resolution. The SARIn mode uses the interferometric SAR that is capable of measure ice along steep slopes. CryoSat-2 has a 369 day repeat orbit, but also has sub-repeat cycles of 3, 29 and 85 days.

podaac.jpl.nasa.gov

http://podaac.jpl.nasa.gov/dataset/CRYOSAT2_L2_OST_IGDR

Identified by : CRYOSAT2_L2_OST_IGDR

This dataset was released on December 16, 2011.

The time range for this dataset starts at January 28, 2011 (09:02 AM).

The spatial range for this dataset is -88° to 66° latitude, and -180° to 180° longitude. map (center)

This dataset uses data from an instance of the sar-interferometer-radar-altimeter instrument on the cryosat-2-earth-explorer-opportunity-mission platform.
This dataset uses data from an instance of the doris-ng instrument on the cryosat-2-earth-explorer-opportunity-mission platform.

Also known as :

• dataset CRYOSAT2_L2_OST_IGDR (podaac lexicon)
• datasetId NOAANE-CS2IG-LRM01 (podaac lexicon)