@article{da360b37ab2f4f9392c5d659097bc260,
title = "Strong Intensification of the Arabian Sea Oxygen Minimum Zone in Response to Arabian Gulf Warming",
abstract = "The highly saline, oxygen-saturated waters of the Arabian Gulf (hereafter the Gulf) sink to intermediate depths (200–300 m) when they enter the Arabian Sea, ventilating the World's thickest oxygen minimum zone (OMZ). Here, we investigate the impacts of a warming of the Gulf consistent with climate change projections on the intensity of this OMZ. Using a series of eddy-resolving model simulations, we show that the warming of the Gulf waters increases their buoyancy and hence limits their contribution to the ventilation of intermediate depths. This leads to an intensification of the OMZ and an increase in denitrification that depletes subsurface nitrate and limits deoxygenation at depth. The projected future concomitant increase of Gulf salinity only partially reduces the OMZ intensification. Our findings highlight the importance of the Arabian marginal seas for the biogeochemistry of the North Indian Ocean and stress the need for improving their representation in global climate models.",
keywords = "Arabian Gulf, Arabian Sea, Persian Gulf, climate change, marginal seas, oxygen minimum zones",
author = "Z. Lachkar and M. L{\'e}vy and Smith, {K. S.}",
note = "Funding Information: Support for this research has come from the Center for Prototype Climate Modeling (CPCM), the New York University Abu Dhabi (NYUAD) Research Institute. Computations were performed at the High Performance cluster (HPC) of NYUAD, Dalma. We thank B. Marchand and M. Barwani from the NYUAD HPC team for technical support. The authors declare that they have no competing financial interests. The data used for forcing and validating the model are publicly available online and can be accessed from cited references. The model code can be accessed online (http://www.romsagrif.org). The model outputs are available online (https://zenodo.org/record/2065158). Funding Information: Support for this research has come from the Center for Prototype Climate Modeling (CPCM), the New York University Abu Dhabi (NYUAD) Research Institute. Computations were performed at the High Performance cluster (HPC) of NYUAD, Dalma. We thank B. Marchand and M. Barwani from the NYUAD HPC team for technical support. The authors declare that they have no competing financial interests. The data used for forcing and validating the model are publicly available online and can be accessed from cited references. The model code can be accessed online (http://www. romsagrif.org). The model outputs are available online (https://zenodo.org/ record/2065158). Publisher Copyright: {\textcopyright}2019. The Authors.",
year = "2019",
month = may,
day = "28",
doi = "10.1029/2018GL081631",
language = "English (US)",
volume = "46",
pages = "5420--5429",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "10",
}