Please Note: This dataset is retired, and is displayed for archive purposes only, and may not reflect the most updated information.
Aquarius Official Release Level 3 Sea Surface Salinity Bias Adjusted Standard Mapped Image Monthly Data V3.0
DescriptionAquarius Level 3 sea surface salinity (SSS) standard mapped image data contains gridded 1 degree spatial resolution SSS averaged over daily, 7 day, monthly, and seasonal time scales. This particular data set is the Monthly sea surface salinity bias adjusted product for version 3.0 of the Aquarius data set, which is the official second release of the operational data from AQUARIUS/SAC-D mission. The empirical SST bias adjustment to retrieved salinity values is designed to reduce biases which are observed in the standard SSS product and which correlate with SST. The likely cause of these biases are small errors in the geophysical model that is used in the SSS retrievals. 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.
Dataset TypeRETIRED
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Citation Frank Wentz, Simon Yueh, Gary Lagerloef. 2014. Aquarius Official Release Level 3 Sea Surface Salinity Bias Adjusted Standard Mapped Image Monthly Data V3.0. Ver. 3.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at

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Journal Reference Lee, T., G. Lagerloef, M.M. Gierach, H.-Y. Kao, S. Yueh, and K. Dohan (2012), Aquarius reveals salinity structure of tropical instability waves, Geophys. Res. Lett., 39, L12610, doi:10.1029/2012GL052232.