Evaluation of sea surface salinity observed by Aquarius on SAC-D

Naoto Ebuchi; Hiroto Abe

doi:10.1117/12.970253

21 November 2012 Evaluation of sea surface salinity observed by Aquarius on SAC-D

Naoto Ebuchi, Hiroto Abe

Proceedings Volume 8525, Remote Sensing of the Marine Environment II; 852502 (2012) https://doi.org/10.1117/12.970253
Event: SPIE Asia-Pacific Remote Sensing, 2012, Kyoto, Japan

Abstract

A passive and active L-band microwave sensor, Aquarius, developed by NASA to observe the global sea surface salinity (SSS) distribution, was launched on 10 June 2011. The SSS observed by Aquarius (v.1.3) was evaluated by comparison with in-situ salinity data from various sources. The Aquarius SSS generally agreed well with salinity measurements by Argo floats in moderate to high sea surface temperature (SST) regions. However, the Aquarius SSS highly deviated in low SST and high wind regions. Typical root-mean-squared difference between the Aquarius and in situ SSS observations under a condition of sea surface temperature higher than 5°C were 0.7 psu for snapshot observations and 0.35~0.4 psu for monthly 1° x 1° averages.

Citation Download Citation

Naoto Ebuchi and Hiroto Abe "Evaluation of sea surface salinity observed by Aquarius on SAC-D", Proc. SPIE 8525, Remote Sensing of the Marine Environment II, 852502 (21 November 2012); https://doi.org/10.1117/12.970253

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