气候变化领域集成服务门户(CCPortal): Late 20th Century Indian Ocean Heat Content Gain Masked by Wind Forcing

CCPortal

DOI	10.1029/2020GL088692
	Late 20th Century Indian Ocean Heat Content Gain Masked by Wind Forcing
	Ummenhofer C.C.; Ryan S.; England M.H.; Scheinert M.; Wagner P.; Biastoch A.; Böning C.W.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Rapid increases in upper 700-m Indian Ocean heat content (IOHC) since the 2000s have focused attention on its role during the recent global surface warming hiatus. Here, we use ocean model simulations to assess distinct multidecadal IOHC variations since the 1960s and explore the relative contributions from wind stress and buoyancy forcing regionally and with depth. Multidecadal wind forcing counteracted IOHC increases due to buoyancy forcing from the 1960s to the 1990s. Wind and buoyancy forcing contribute positively since the mid-2000s, accounting for the drastic IOHC change. Distinct timing and structure of upper ocean temperature changes in the eastern and western Indian Ocean are linked to the pathway how multidecadal wind forcing associated with the Interdecadal Pacific Oscillation is transmitted and affects IOHC through local and remote winds. Progressive shoaling of the equatorial thermocline—of importance for low-frequency variations in Indian Ocean Dipole occurrence—appears to be dominated by multidecadal variations in wind forcing. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Buoyancy; Enthalpy; Global surface warming; Indian Ocean dipole; Inter-decadal pacific oscillations; Low-frequency variations; Multidecadal variations; Ocean model simulations; Relative contribution; Western indian oceans; Oceanography; buoyancy forcing; global warming; heating; Indian Ocean Dipole; twentieth century; upper ocean; wind forcing; Indian Ocean
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169428
作者单位	Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; ARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, Australia; Climate Change Research Centre, University of New South Wales, Sydney, NSW, Australia; GEOMAR Helmholtz Centre Ocean Research Kiel, Kiel, Germany; Faculty of Mathematics and Natural Sciences, Christian-Albrechts University, Kiel, Germany
推荐引用方式 GB/T 7714	Ummenhofer C.C.,Ryan S.,England M.H.,et al. Late 20th Century Indian Ocean Heat Content Gain Masked by Wind Forcing[J],2020,47(22).
APA	Ummenhofer C.C..,Ryan S..,England M.H..,Scheinert M..,Wagner P..,...&Böning C.W..(2020).Late 20th Century Indian Ocean Heat Content Gain Masked by Wind Forcing.Geophysical Research Letters,47(22).
MLA	Ummenhofer C.C.,et al."Late 20th Century Indian Ocean Heat Content Gain Masked by Wind Forcing".Geophysical Research Letters 47.22(2020).