Ocean Science
Ocean Science
OS
Articles | Volume 13, issue 4
Articles | Volume 13, issue 4
https://doi.org/10.5194/os-13-521-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/os-13-521-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 4
Research article
 | 
06 Jul 2017
Research article |  | 06 Jul 2017

Freshening of Antarctic Intermediate Water in the South Atlantic Ocean in 2005–2014

Wenjun Yao, Jiuxin Shi, and Xiaolong Zhao

Supplement

https://doi.org/10.5194/os-13-521-2017-supplement

Data sets

Argo gridded T and S of IPRC IPRC Argo products http://apdrc.soest.hawaii.edu/projects/Argo/data/gridded/On_standard_levels/index-1.html

Argo gridded T and S of JAMSTEC FTP Server Jamstec ftp://ftp2.jamstec.go.jp/pub/argo/MOAA_GPV/Glb_PRS/OI/

Hydrographic transects CCHDO https://cchdo.ucsd.edu/search/map

10 m wind fields of ERA-Interim. ECMWF http://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=sfc/

10 m wind fields of NCEP-2. M. Kanamitsu, W. Ebisuzaki, J. Woollen, S-K Yang, J. J. Hnilo, M. Fiorino, and G. L. Potter http://www.cpc.ncep.noaa.gov/products/wesley/reanalysis2/kana/reanl2-1.htm

10 m wind fields of QuikSCAT and ASCAT FTP Server IFREMER ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/MWF/L3/

Velocity fields of SODA3.3.1 J. A. Carton, G. A. Chepurin, and L. Chen http://www.atmos.umd.edu/~ocean/

Download
Short summary
Antarctic Intermediate Water (AAIW) in the South Atlantic Ocean has experienced basin-scaled freshening from 2005 to 2014, reflected by the Argo gridded products. Two zonal sections of WOCE observation also revealed a similar quasi-decadal signal. Our analysis revealed that such freshening was induced by the increase of freshwater input in the AAIW ventilation region and the decrease of Agulhas Leakage transport.
Read more