DOI: 10.1002/2016GL070557
论文题名: Facets of Arctic energy accumulation based on observations and reanalyses 2000–2015
作者: Mayer M. ; Haimberger L. ; Pietschnig M. ; Storto A.
刊名: Geophysical Research Letters
ISSN: 0094-8572
EISSN: 1944-8303
出版年: 2016
卷: 43, 期: 19 起始页码: 10420
结束页码: 10429
语种: 英语
英文关键词: Arctic
; climate change
; energy budget
; ocean heat content
; sea ice
Scopus关键词: Atmospheric temperature
; Budget control
; Climate change
; Enthalpy
; Oceanography
; Sea ice
; Surface waters
; Arctic
; Energy accumulation
; Energy budgets
; Ice albedo feedback
; Meridional temperature gradient
; Ocean heat content
; Poleward energy transport
; Sea surface temperature (SST)
; Ice
英文摘要: Various observation- and reanalysis-based estimates of sea ice mass and ocean heat content trends imply that the energy imbalance of the Arctic climate system was similar [1.0 (0.9,1.2) Wm−2] to the global ocean average during the 2000–2015 period. Most of this extra heat warmed the ocean, and a comparatively small fraction went into sea ice melt. Poleward energy transports and radiation contributed to this energy increase at varying strengths. On a seasonal scale, stronger radiative energy input during summer associated with the ice-albedo feedback enhances seasonal oceanic heat uptake and sea ice melt. In return, lower sea ice extent and higher sea surface temperatures lead to enhanced heat release from the ocean during fall. This weakens meridional temperature gradients, consequently reducing atmospheric energy transports into the polar cap. The seasonal cycle of the Arctic energy budget is thus amplified, whereas the Arctic's long-term energy imbalance is close to the global mean. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990922520&doi=10.1002%2f2016GL070557&partnerID=40&md5=7c0e80817ca4263ce42935b02a53bea1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9535
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Meteorology and Geophysics, University of Vienna, Vienna, Austria
Recommended Citation:
Mayer M.,Haimberger L.,Pietschnig M.,et al. Facets of Arctic energy accumulation based on observations and reanalyses 2000–2015[J]. Geophysical Research Letters,2016-01-01,43(19).