Simulated effects of southern hemispheric wind changes on the Pacific oxygen minimum zone

Getzlaff, Julia, Dietze, Heiner and Oschlies, Andreas (2016) Simulated effects of southern hemispheric wind changes on the Pacific oxygen minimum zone Geophysical Research Letters, 43 (2). pp. 728-734. DOI 10.1002/2015GL066841.

[img]
Preview
Text
Getzlaff_et_al-2015-Geophysical_Research_Letters.pdf - Accepted Version
Available under License Creative Commons: Attribution 3.0.

Download (967Kb) | Preview
[img]
Preview
Text
grl53886.pdf - Published Version

Download (1690Kb) | Preview

Supplementary data:

Abstract

A coupled ocean biogeochemistry-circulation model is used to investigate the impact of observed past and anticipated future wind changes in the southern hemisphere on the oxygen minimum zone in the tropical Pacific. We consider the industrial period until the end of the 21st century and distinguish effects due to a strengthening of the westerlies from effects of a southward shift of the westerlies that is accompanied by a poleward expansion of the tropical trade winds. Our model results show that a strengthening of the westerlies counteracts part of the warming-induced decline in the global marine oxygen inventory. A poleward shift of the trade-westerlies boundary, however, triggers a significant decrease of oxygen in the tropical oxygen minimum zone. In a business-as-usual CO2 emission scenario, the poleward shift of the trade-westerlies boundary and warming-induced increase in stratification contribute equally to the expansion of suboxic waters in the tropical Pacific.

Document Type: Article
Additional Information: WOS:000372056400030
Keywords: SYSTEM CLIMATE MODEL; MERIDIONAL OVERTURNING CIRCULATION; OCEAN; TRENDS; GYRE
Research affiliation: OceanRep > SFB 754 > A2
OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BM Biogeochemical Modeling
OceanRep > SFB 754 > B1
OceanRep > SFB 754
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1002/2015GL066841
ISSN: 0094-8276
Related URLs:
Projects: SFB754, BIOACID
Date Deposited: 04 Jan 2016 11:08
Last Modified: 10 Apr 2017 08:03
URI: http://oceanrep.geomar.de/id/eprint/30771

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...