NDLI: Competition between ocean carbon pumps in simulations with varying Southern Hemisphere westerly wind forcing

Content Provider	Springer Nature Link
Author	Huiskamp, W. N. Meissner, K. J. d’Orgeville, M.
Copyright Year	2015
Abstract	We analyse the impact of migration and strength of Southern Hemisphere westerly winds on the ocean carbon cycle in a systematic sensitivity study with the University of Victoria Earth System Climate Model. We find that changes in the biological pump are mainly driven by changes in ocean residence times while changes in export production are negligible. Changes in the biological and physical pumps are always of opposite sign; with the physical pump being dominant for southward shifts and the biological pump being dominant for northward shifts. Furthermore, changes in the Pacific Ocean carbon budget dictate the overall changes in global marine and atmospheric carbon. Overall, atmospheric $$\hbox {CO}_2$$ increases (and $$\Delta ^{14}\hbox {C}$$ decreases) for northward shifts or a strengthening in wind forcing. The opposite is true for a southward shift or a weakening in wind forcing. Combining forcings (shift and intensity change) results in a combination of their impacts with the direction of the shift being the first order forcing. The terrestrial carbon reservoir absorbs (releases) 50–70 % of the net oceanic carbon loss (increase), counterbalancing the effect on atmospheric $$\hbox {CO}_2$$ .
Starting Page	3463
Ending Page	3480
Page Count	18
File Format	PDF
ISSN	09307575
Journal	Climate Dynamics
Volume Number	46
Issue Number	11-12
e-ISSN	14320894
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-08-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Carbon cycle Southern Hemisphere westerlies Southern annular mode Ocean dynamics Preformed and remineralized DIC Geophysics/Geodesy Climatology Oceanography
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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

Wind-driven changes in Southern Ocean residual circulation, ocean carbon reservoirs and atmospheric CO2

The Southern Annular Mode (SAM) in PMIP2 simulations of the last glacial maximum

Role of stratospheric dynamics in the ozone–carbon connection in the Southern Hemisphere

Potential influence of the November–December Southern Hemisphere annular mode on the East Asian winter precipitation: a new mechanism

Modes of variability of Southern Hemisphere atmospheric circulation estimated by AGCMs

The de-correlation of westerly winds and westerly-wind stress over the Southern Ocean during the Last Glacial Maximum

Southern Hemisphere extra-tropical forcing: a new paradigm for El Niño-Southern Oscillation

Decadal changes in the Southern Hemisphere sea surface temperature in association with El Niño–Southern Oscillation and Southern Annular Mode

Atmospheric circulation changes and neoglacial conditions in the Southern Hemisphere mid-latitudes: insights from PMIP2 simulations at 6 kyr

Competition between ocean carbon pumps in simulations with varying Southern Hemisphere westerly wind forcing

Similar Documents

Wind-driven changes in Southern Ocean residual circulation, ocean carbon reservoirs and atmospheric CO2

The Southern Annular Mode (SAM) in PMIP2 simulations of the last glacial maximum

Role of stratospheric dynamics in the ozone–carbon connection in the Southern Hemisphere

Potential influence of the November–December Southern Hemisphere annular mode on the East Asian winter precipitation: a new mechanism

Modes of variability of Southern Hemisphere atmospheric circulation estimated by AGCMs

The de-correlation of westerly winds and westerly-wind stress over the Southern Ocean during the Last Glacial Maximum

Southern Hemisphere extra-tropical forcing: a new paradigm for El Niño-Southern Oscillation

Decadal changes in the Southern Hemisphere sea surface temperature in association with El Niño–Southern Oscillation and Southern Annular Mode

Atmospheric circulation changes and neoglacial conditions in the Southern Hemisphere mid-latitudes: insights from PMIP2 simulations at 6 kyr

Competition between ocean carbon pumps in simulations with varying Southern Hemisphere westerly wind forcing