Aquarius Official Release Level 3 Sea Surface Density Standard Mapped Image 7-Day Data V5.0
DOI10.5067/AQR50-3D7CS
Short NameAQUARIUS_L3_DENSITY_SMI_7DAY_V5
DescriptionAquarius Level 3 sea surface density standard mapped image data contains gridded 1 degree spatial resolution derived density averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the 7-Day, sea surface density product for version 5.0 of the Aquarius data set, which is the official end of mission public data release from the AQUARIUS/SAC-D mission. Surface density estimates are based on TEOS-10 and derived using retrieved salinity from Aquarius and collocated ancillary SST (Reynolds OI 0.25 degree product). The Aquarius instrument is onboard the AQUARIUS/SAC-D satellite, a collaborative effort between NASA and the Argentinian Space Agency Comision Nacional de Actividades Espaciales (CONAE). The instrument consists of three radiometers in push broom alignment at incidence angles of 29, 38, and 46 degrees incidence angles relative to the shadow side of the orbit. Footprints for the beams are: 76 km (along-track) x 94 km (cross-track), 84 km x 120 km and 96km x 156 km, yielding a total cross-track swath of 370 km. The radiometers measure brightness temperature at 1.413 GHz in their respective horizontal and vertical polarizations (TH and TV). A scatterometer operating at 1.26 GHz measures ocean backscatter in each footprint that is used for surface roughness corrections in the estimation of salinity. The scatterometer has an approximate 390km swath.
Version5.0
Dataset TypeCOMPLETE
MeasurementOCEANS > SALINITY/DENSITY > DENSITY
Processing Level3
CoverageNorth Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2011-Aug-25 to 2015-Jun-07
Granule Time Span: 2011-Aug-25 to 2015-Jun-07
ResolutionSpatial Resolution: 1 degrees (Latitude) x 1 degrees (Longitude)
Temporal Resolution: 7 Day
ProjectionEllipsoid: WGS 84
Platform/Sensor
Aquarius_SAC-D
Platform
Name: Aquarius SAC-D (Aquarius_SAC-D)
Orbit Period: 98.0 minutes
Inclination Angle: 98.0 degrees
/
AQUARIUS_RADIOMETER
SENSOR
Name: Aquarius Radiometer (AQUARIUS_RADIOMETER)
Swath Width: 390.0 meters
Description: Spacecraft angular distance from orbital plane relative to the Equator.

Aquarius_SAC-D
Platform
Name: Aquarius SAC-D (Aquarius_SAC-D)
Orbit Period: 98.0 minutes
Inclination Angle: 98.0 degrees
/
AQUARIUS_SCATTEROMETER
SENSOR
Name: Aquarius Scatterometer (AQUARIUS_SCATTEROMETER)
Swath Width: 390.0 meters
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectAQUARIUS SAC-D (AQUARIUS SAC-D)
Data ProviderPublisher: NASA/GSFC OBPG
Creator: NASA Aquarius project
Release Place: Goddard Space Flight Center, 8800 Greenbelt Rd.; Greeenbelt, MD., 20771, USA
Release Date: 2017-Dec-07
Keyword(s)Aquarius, density, polar, sun-synchronous, sss, psu, CONAE, argentina, project, mission, OBPG
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
USER'S GUIDE
GENERAL DOCUMENTATION
Citation NASA Aquarius project. 2017. Aquarius Sea Surface Salinity Products. Ver. 5.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/AQR50-3D7CS

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