Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Biogeosciences, 14, 1541-1559, 2017
https://doi.org/10.5194/bg-14-1541-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
27 Mar 2017
Positive Indian Ocean Dipole events prevent anoxia off the west coast of India
Parvathi Vallivattathillam et al.

Data sets

WOA V2 2013 data
NOAA
https://www.nodc.noaa.gov/OC5/woa13/woa13data.html
Aviso global sea surface height products
AVISO
http://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global.html
OceanColour-CCI
Plymouth Marine Laboratory - PML
https://www.oceancolour.org/
Publications Copernicus
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Short summary
During late boreal summer and fall, the west coast of India (WCI) experiences hypoxia, which turns into anoxia during some years. We analyze a coupled physical–biogeochemical simulation over the 1960–2012 period to investigate the physical processes influencing oxycline interannual variability off the WCI. We show that fall WCI oxycline fluctuations are strongly related to Indian Ocean Dipole (IOD), with positive IODs preventing anoxia, while negative IODs do not necessarily result in anoxia.
During late boreal summer and fall, the west coast of India (WCI) experiences hypoxia, which...
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