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    Status of Aquarius and Salinity Continuity (2018)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Aquarius is an L-band radar/radiometer instrument combination that has been designed to measure ocean salinity. It was launched on 10 June 2011 as part of the Aquarius/SAC-D observatory. The observatory is a partnership between the United States National Aeronautics and Space Agency (NASA), which provided Aquarius, and the Argentinian space agency, Comisin Nacional de Actividades Espaciales (CONAE), which provided the spacecraft bus, Satelite de Aplicaciones Cientificas (SAC-D). The observatory was lost four years later on 7 June 2015 when a failure in the power distribution network resulted in the loss of control of the spacecraft. The Aquarius Mission formally ended on 31 December 2017. The last major milestone was the release of the final version of the salinity retrieval (Version 5). Version 5 meets the mission requirements for accuracy, and reflects the continuing progress and understanding developed by the science team over the lifetime of the mission. Further progress is possible, and several issues remained unresolved at the end of the mission that are relevant to future salinity retrievals. The understanding developed with Aquarius is being transferred to radiometer observations over the ocean from NASA's Soil Moisture Active Passive (SMAP) satellite, and salinity from SMAP with accuracy approaching that of Aquarius are already being produced.
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN61929 , Remote Sensing (e-ISSN 2072-4292); 10; 10; 1585
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Highlights of the First 15 Months of Aquarius Salinity Measurements (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-19
    Description: Aquarius satellite salinity measurements are resolving the major global and regional spatial patterns, and temporal variations, since the start of routine data collection on 25 August 2011. This description includes the principal seasonal variations over the first annual cycle as observed by the mission. In particular, we identify the evolution of low salinity anomalies associated with the Atlantic and Pacific intertropical convergence zones (ITCZ), major river outflows such as the Amazon, a seasonal low salinity anomaly in the Panama bight, and other features. We also explore the links that the salinity variations have with precipitation and surface currents. We then will describe the variations related to the presently evolving 2012 El Nino, now evident, as it progresses through the summer and fall 2012. We conclude with a brief summary of the Aquarius data products and validation
    Keywords: Meteorology and Climatology
    Type: GSFC.ABS.7007.2012 , 2012 AGU Fall Meeting; Dec 03, 2012 - Dec 07, 2012; San Francisco, CA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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