Aquarius CAP Level 3 Sea Surface Salinity Standard Mapped Image Monthly Data V5.0

(AQUARIUS_L3_SSS_CAP_MONTHLY_V5)
1 Publication Cited this Dataset
Citation metrics available for years (2014-2022)
Version5.0
Processing Level3
Start/Stop Date2011-Sep-01 to 2015-Jun-01
Short NameAQUARIUS_L3_SSS_CAP_MONTHLY_V5
DescriptionVersion 5.0 Aquarius CAP Level 3 products are the fourth release of the AQUARIUS/SAC-D mapped salinity and wind speed data based on the Combined Active Passive (CAP) algorithm. CAP Level 3 standard mapped image products contain gridded 1 degree spatial resolution salinity and wind speed data averaged over 7 day and monthly time scales. This particular dataset is the monthly sea surface salinity (SSS) V5.0 Aquarius CAP product. CAP is a P.I. produced dataset developed and provided by JPL. The CAP algorithm utilizes data from both the onboard radiometer and scatterometer to simultaneously retrieve salinity, wind speed and direction by minimizing the sum of squared differences between model and observations. The main improvements in CAP V5.0 relative to the previous version include: updates to the Geophysical Model Functions to 4th order harmonics with the inclusion of sea surface temperature (SST) and stability at air-sea interface effects; use of the Canadian Meteorological Center (CMC) SST product as the new source ancillary sea surface temperature data in place of NOAA OI SST. 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.
DOI10.5067/AQR50-3TMCS
MeasurementOCEANS > SALINITY/DENSITY > SALINITY
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 kilometers
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 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectAQUARIUS SAC-D (AQUARIUS SAC-D)
Data ProviderPublisher: JPL - Simon Yueh
Creator: Simon Yueh
Release Place: Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA91109, USA
Release Date: 2018-Oct-01
Resource: http://podaac.jpl.nasa.gov/SeaSurfaceSalinity/Aquarius

FormatnetCDF-4
Keyword(s)Aquarius, CAP, CAPv5, salinity, polar, sun-synchronous, sss, psu, CONAE, argentina, JPL
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution
Spatial Resolution: 1 Decimal Degrees x 1 Decimal Degrees
Temporal Resolution: 1 Month
 
Coverage
Region: GLOBAL
North Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2011-Sep-01 to 2015-Jun-01
Granule Time Span: 2011-Sep-01 to 2015-May-31
 
Projection
Projection Type: Gridded
Ellipsoid: WGS 84
 
NameLong NameUnit
EquirectangularEquirectangular
ice_fracSea_Ice_Area_Fraction1
latlatitudedegrees_north
lonlongitudedegrees_east
sss_capSea_Surface_Salinity1e-3
GENERAL DOCUMENTATION
USER'S GUIDE
DATA CITATION POLICY
DATA RECIPE
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation Simon Yueh. 2018. Aquarius CAP Sea Surface Salinity and Wind Products. Ver. 5.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/AQR50-3TMCS

Download Citation
RIS BIB XML JSON-LD

For more information see Data Citations and Acknowledgments.

Journal Reference Yueh,S.H., W.Tang,A.K.Hayashi,G.S.E.Lagerloef (2014).L-Band Passive and Active Microwave Geophysical Model Functions of Ocean Surface Winds and Applications to Aquarius Retrieval. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,51(9), 4619-4632

.