Potential Mechanisms Responsible for Spatial Variability in Intensity and Thickness of Oxygen Minimum Zone in the Bay of Bengal

Potential Mechanisms Responsible for Spatial Variability in Intensity and Thickness of Oxygen Minimum Zone in the Bay of Bengal

Spatial variability in boundaries and thickness of oxygen minimum zone (OMZ) is derived based on measured dissolved oxygen data obtained from sensors on board biogeochemical (BGC) Argo floats between 2013 and 2019 in the Bay of Bengal (BoB). Upper and lower boundaries of the OMZ varied from 60 to 20...

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Veröffentlicht in:Journal of geophysical research. Biogeosciences 2021-06, Vol.126 (6), p.n/a
Hauptverfasser: Udaya Bhaskar, T. V. S., Sarma, V. V. S. S., Pavan Kumar, J.
Format: Artikel
Sprache:eng
Schlagworte:
Backscattering
Bay of Bengal
Biogeochemistry
Boundaries
Carbon
Decomposition
Dissolved oxygen
Drifters
Eddies
Floats
Freshwater
Inland water environment
Offshore
Organic matter
Oxygen
Oxygen minimum zone
Primary production
river discharge
Rivers
Sediment
Sediments
shelf transport
Spatial variations
Stratification
Thickness
Vortices
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Zusammenfassung:Spatial variability in boundaries and thickness of oxygen minimum zone (OMZ) is derived based on measured dissolved oxygen data obtained from sensors on board biogeochemical (BGC) Argo floats between 2013 and 2019 in the Bay of Bengal (BoB). Upper and lower boundaries of the OMZ varied from 60 to 200 m and 100 to 800 m respectively with the thickness of 80–650 m in the BoB. Relatively thicker OMZ is noticed in the northern than southern BoB associated with stratification. The oxygen concentrations in the OMZ in the NW was low (
ISSN:2169-8953
2169-8961
DOI:10.1029/2021JG006341