NDLI: Seasonal controls on surface pCO$_{2}$ in the central and eastern Arabian Sea

Content Provider	Springer Nature Link
Author	Sarma, V. V. S. S. Kumar, M. Dileep Gauns, M. Madhupratap, M.
Copyright Year	2000
Abstract	The variability in partial pressure of carbon dioxide (pCO$_{2}$) and its control by biological and physical processes in the mixed layer (ML) of the central and eastern Arabian Sea during inter-monsoon, northeast monsoon, and southwest monsoon seasons were studied. The ML varied from 80–120 m during NE monsoon, 60–80 m and 20–30 m during SW- and inter-monsoon seasons, respectively, and the variability resulted from different physical processes. Significant seasonal variability was found in pCO$_{2}$ levels. During SW monsoon, coastal waters contain two contrasting regimes; (a) pCO$_{2}$ levels of 520–685 μatm were observed in the SW coast of India, the highest found so far from this region, driven by intense upwelling and (b) low levels of pCO$_{2}$ (266 μatm) were found associated with monsoonal fresh water influx. It varied in ranges of 416–527 μatm and 375–446 μatm during inter- and NE monsoon, respectively, in coastal waters with higher values occurring in the north. The central Arabian Sea pCO$_{2}$ levels were 351–433, 379–475 and 385–432 μatm during NE-inter and SW monsoon seasons, respectively. The mixed layer pCO$_{2}$ relations with temperature, oxygen, chlorophylla and primary production revealed that the former is largely regulated by physical processes during SW- and NE monsoon whereas both physical and biological processes are important in inter-monsoon. Application of Louanchiet al (1996) model revealed that the mixing effect is the dominant during monsoons, however, the biological effect is equally significant during SW monsoon whereas thermodynamics and fluxes influence during inter-monsoons.
Starting Page	471
Ending Page	479
Page Count	9
File Format	PDF
ISSN	02534126
Journal	Journal of Earth System Science
Volume Number	109
Issue Number	4
e-ISSN	0973774X
Language	English
Publisher	Springer India
Publisher Date	2000-01-01
Publisher Institution	Indian Academy of Sciences
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Carbon dioxide productivity thermodynamics mixing flux Arabian Sea Geosciences Extraterrestrial Physics, Space Sciences
Content Type	Text
Resource Type	Article
Subject	1900/1901

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Physical control of primary productivity on a seasonal scale in central and eastern Arabian Sea

Seasonal variation of chlorophyll and primary productivity in central Arabian Sea: A macrocalibrated upper ocean ecosystem model

Role of biology in the air-sea carbon flux in the Bay of Bengal and Arabian Sea

A comparison of Globigerinoides ruber calcification between upwelling and non-upwelling regions in the Arabian Sea

Coccolithophores from the central Arabian Sea: Sediment trap results

The influence of Indian Ocean Dipole (IOD) on biogeochemistry of carbon in the Arabian Sea during 1997–1998

A multilayer study of pCO$_{2}$ in the surface waters of the Yellow and South China Seas in spring and the sea-air carbon dioxide flux

Nitrogen isotopic studies in the suboxic Arabian Sea

Monsoon control on trace metal fluxes in the deep Arabian Sea

Seasonal controls on surface pCO$_{2}$ in the central and eastern Arabian Sea

Similar Documents

Physical control of primary productivity on a seasonal scale in central and eastern Arabian Sea

Seasonal variation of chlorophyll and primary productivity in central Arabian Sea: A macrocalibrated upper ocean ecosystem model

Role of biology in the air-sea carbon flux in the Bay of Bengal and Arabian Sea

A comparison of Globigerinoides ruber calcification between upwelling and non-upwelling regions in the Arabian Sea

Coccolithophores from the central Arabian Sea: Sediment trap results

The influence of Indian Ocean Dipole (IOD) on biogeochemistry of carbon in the Arabian Sea during 1997–1998

A multilayer study of pCO$_{2}$ in the surface waters of the Yellow and South China Seas in spring and the sea-air carbon dioxide flux

Nitrogen isotopic studies in the suboxic Arabian Sea

Monsoon control on trace metal fluxes in the deep Arabian Sea

Seasonal controls on surface pCO$_{2}$ in the central and eastern Arabian Sea