Spatiotemporal variability of sea surface salinity and its covariation with freshwater flux in the Indo-Pacific Warm Pool region

Yanyan Li; Yiqiang Hu; Yubo Wen; Jielan Xie; Qiheng Liu

doi:10.1117/12.2641881

28 October 2022 Spatiotemporal variability of sea surface salinity and its covariation with freshwater flux in the Indo-Pacific Warm Pool region

Yanyan Li, Yiqiang Hu, Yubo Wen, Jielan Xie, Qiheng Liu

Author Affiliations +

Proceedings Volume 12263, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2022; 122630F (2022) https://doi.org/10.1117/12.2641881
Event: SPIE Remote Sensing, 2022, Berlin, Germany

Abstract

Indo-Pacific Warm Pool (IPWP) region is a key region which is sensitive to climate change. Therefore a comprehensive knowledge of the variability of sea surface salinity (SSS) for the entire IPWP region on decadal time scale is of great importance. This study mainly focuses on the spatiotemporal variability of SSS in the IPWP region, using conventional empirical orthogonal function (EOF) analysis, the lead–lag correlation analysis and long-term trend analysis. Barnett and Preisendorfer’s improved Canonical Correlation Analysis (BPCCA) is also applied to examine the covariation of SSS and freshwater flux (F) under climate change of El Niño–Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD). We found that SSS in most eastern Indian Ocean regions show obviously decreasing trends, whereas slightly increasing trends are found in most western Pacific Ocean regions. The leading two EOF modes both have a strong correlation with MEI and lead MEI by approximately 5 and 2 months, respectively. The spatial distribution of the canonical modes for SSS and F are very similar, except for slightly zonal deviation of the anomaly center between SSS and F, which can be explained by horizontal advection.

Citation Download Citation

Yanyan Li, Yiqiang Hu, Yubo Wen, Jielan Xie, and Qiheng Liu "Spatiotemporal variability of sea surface salinity and its covariation with freshwater flux in the Indo-Pacific Warm Pool region", Proc. SPIE 12263, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2022, 122630F (28 October 2022); https://doi.org/10.1117/12.2641881

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Climatology

Climate change

Lanthanum

Lead

Spatial resolution

Electroluminescence

Canonical correlation analysis

Show All Keywords

Keywords/Phrases

Search In:

Publication Years