Differences in recent and future trends in the Arabian Sea oxygen minimum zone: processes and uncertainties

Z Lachkar, M Levy, D Hailegeorgis… - Frontiers in Marine …, 2023 - frontiersin.org
The Arabian Sea is an exceptionally complex system that hosts a highly productive marine
ecosystem. This intense productivity leads to high oxygen consumption at depth that …

[HTML][HTML] Deep water circulation in the Arabian Sea during the last glacial cycle: Implications for paleo-redox condition, carbon sink and atmospheric CO2 variability

N Lathika, W Rahaman, M Tarique, N Gandhi… - Quaternary Science …, 2021 - Elsevier
Global overturning circulation plays a vital role in atmospheric CO 2 and climate variability
during glacial-interglacial (GI) cycles; however, the exact mechanism remains elusive due to …

[HTML][HTML] Reviews and syntheses: Present, past, and future of the oxygen minimum zone in the northern Indian Ocean

T Rixen, G Cowie, B Gaye, J Goes… - …, 2020 - bg.copernicus.org
Decreasing concentrations of dissolved oxygen in the ocean are considered one of the main
threats to marine ecosystems as they jeopardize the growth of higher organisms. They also …

Strong intensification of the Arabian Sea oxygen minimum zone in response to Arabian Gulf warming

Z Lachkar, M Lévy, KS Smith - Geophysical Research Letters, 2019 - Wiley Online Library
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 …

Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard‐Oeschger oscillations

G Deplazes, A Lückge, JBW Stuut, J Pätzold… - …, 2014 - Wiley Online Library
Abstract The Dansgaard‐Oeschger oscillations and Heinrich events described in North
Atlantic sediments and Greenland ice are expressed in the climate of the tropics, for …

Nitrogen isotopes in bulk marine sediment: linking seafloor observations with subseafloor records

JE Tesdal, ED Galbraith, M Kienast - Biogeosciences, 2013 - bg.copernicus.org
The stable isotopes of nitrogen offer a unique perspective on changes in the nitrogen cycle,
past and present. However, the presence of multiple forms of nitrogen in marine sediments …

[HTML][HTML] Paleoceanographic insights on recent oxygen minimum zone expansion: lessons for modern oceanography

SE Moffitt, RA Moffitt, W Sauthoff, CV Davis, K Hewett… - PloS one, 2015 - journals.plos.org
Climate-driven Oxygen Minimum Zone (OMZ) expansions in the geologic record provide an
opportunity to characterize the spatial and temporal scales of OMZ change. Here we …

[HTML][HTML] Intensification and deepening of the Arabian Sea oxygen minimum zone in response to increase in Indian monsoon wind intensity

Z Lachkar, M Lévy, S Smith - Biogeosciences, 2018 - bg.copernicus.org
The decline in oxygen supply to the ocean associated with global warming is expected to
expand oxygen minimum zones (OMZs). This global trend can be attenuated or amplified by …

Climate oscillations reflected within the microbiome of Arabian Sea sediments

WD Orsi, MJL Coolen, C Wuchter, L He, KD More… - Scientific Reports, 2017 - nature.com
Selection of microorganisms in marine sediment is shaped by energy-yielding electron
acceptors for respiration that are depleted in vertical succession. However, some taxa have …

[HTML][HTML] The release of 14C-depleted carbon from the deep ocean during the last deglaciation: Evidence from the Arabian Sea

SP Bryan, TM Marchitto, SJ Lehman - Earth and Planetary Science Letters, 2010 - Elsevier
During the last deglaciation the concentration of CO2 in the atmosphere increased and the
radiocarbon activity (Δ14C) of the atmosphere declined in two steps corresponding in timing …