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Looking for facts and information? See About the Cryosphere.
Icelights: Answers to your burning questions about ice and climate
What's hot in the news around climate and sea ice and what are scientists talking about now? Read more...
What is the Cryosphere?
When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. Read more ...
Aquarius/SAC-D Platform. Courtesy: NASA
NSIDC DAAC archives and distributes swath-based Level-2 and Level-3 data products from the Aquarius microwave radiometers and scatterometer on the Satélite de Aplicaciones Científicas (SAC-D) platform.
NASA's Aquarius is the primary instrument on the SAC-D. Aquarius/SAC-D is a collaboration between NASA and Argentina's space agency, Comisión Nacional de Actividades Espaciales (CONAE), with participation from Brazil, Canada, France and Italy.
Note: Due to a power failure on the SAC-D on 08 June 2015, data from NASA's Aquarius instrument are no longer being produced. For more information on this event, please refer to the official NASA announcement. The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) will continue to distribute Aquarius soil moisture and polar-gridded data sets for the full duration of the mission, 25 August 2011 to 07 June 2015.
The Aquarius data products and related information are described on several Web pages, and can be accessed via the links on the left. The Web pages are described below.
NSIDC Web site for AMSR-E/Aqua data.
AMSR-E Soil Moisture Validation
Soil Moisture Experiments (SMEX) accuracy of AMSR-E soil moisture data.
Official Aquarius Web site at NASA Goddard Space Flight Center