DOI: 10.1175/JCLI-D-14-00123.1
Scopus记录号: 2-s2.0-84906875624
论文题名: On the energy exchange between tropical ocean basins related to ENSO
作者: Mayer M. ; Haimberger L. ; Balmaseda M.A.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 17 起始页码: 6393
结束页码: 6403
语种: 英语
Scopus关键词: Atmospheric pressure
; Budget control
; Oceanography
; Regression analysis
; Atmospheric circulation
; Atmospheric energy
; Energy re distributions
; Indonesian throughflow
; Ocean heat content
; Ocean heat transport
; Top of the atmospheres
; Tropical atlantic
; Tropics
英文摘要: Vast amounts of energy are exchanged between the ocean, atmosphere, and space in association with El Niño-Southern Oscillation (ENSO). This study examines energy budgets of all tropical (30°S-30°N) ocean basins and the atmosphere separately using different, largely independent oceanic and atmospheric reanalyses to depict anomalous energy flows associated with ENSOin a consistent framework. It is found that variability of area-averaged ocean heat content (OHC) in the tropical Pacific to a large extent is modulated by energy flow through the ocean surface.While redistribution of OHC within the tropical Pacific is an integral part of ENSO dynamics, variability of ocean heat transport out of the tropical Pacific region is found to be mostly small. Noteworthy contributions arise from the Indonesian Throughflow (ITF), which is anticorrelated with ENSO at a fewmonths lag, and fromanomalous oceanic poleward heat export during the La Niña events in 1999 and 2008. Regression analysis reveals that atmospheric energy transport and radiation at the top of the atmosphere (RadTOA) almost perfectly balance the OHC changes and ITF variability associated with ENSO. Only a small fraction of El Niño-related heat lost by the Pacific Ocean through anomalous air-sea fluxes is radiated to space immediately, whereas the major part of the energy is transported away by the atmosphere. Ample changes in tropical atmospheric circulation lead to enhanced surface fluxes and, consequently, to an increase ofOHC in the tropical Atlantic and IndianOcean that almost fully compensates for tropical PacificOHCloss.This signature of energy redistribution is robust across the employed datasets for all three tropical ocean basins and explains the small ENSO signal in global mean RadTOA. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51263
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Meteorology and Geophysics, University of Vienna, Vienna, Austria; European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom
Recommended Citation:
Mayer M.,Haimberger L.,Balmaseda M.A.. On the energy exchange between tropical ocean basins related to ENSO[J]. Journal of Climate,2014-01-01,27(17)