DOI: 10.1002/2014GL061881
论文题名: Artifacts in variations of ocean heat content induced by the observation system changes
作者: Cheng L. ; Zhu J.
刊名: Geophysical Research Letters
ISSN: 0094-9690
EISSN: 1944-9421
出版年: 2014
卷: 41, 期: 20 起始页码: 7276
结束页码: 7283
语种: 英语
英文关键词: Argo
; ocean heat content
; sampling
; shift
; ship
Scopus关键词: Enthalpy
; Sampling
; Sea level
; Ships
; Argo
; Climate indicators
; Global sea level rise
; Historical observation
; Observation systems
; Ocean heat content
; Ocean observation systems
; shift
; Oceanography
; array
; global warming
; heat balance
; observational method
; sampling
; sea level change
英文摘要: The heat content of the upper ocean is a key climate indicator, contributing to a substantial portion of the global sea level rise. Recent ocean heat content (OHC) calculations have shown a dramatic shift during the period 2001-2003, which is nearly coincident with a major transition in the ocean observation network from a ship-based system to Argo floats. Here we demonstrate that the changes in the spatial sampling of the historical observation network introduced an artificial jump during the initiation of the global Argo array (2001-2003). The start of the Argo program is responsible for such a shift. Considering the sampling bias, new methods to assess long-term trends in the OHC (0-700-m) are proposed that suggest the presence of a continuous upper ocean warming (0.36-±-0.08-W-m-2) since 1966. Key Points The transfer of ocean observation system to Argo induces bias in OHC estimationThe horizontal sampling change is responsible for the sampling bias0-700-m upper ocean warming rate is assessed ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911361246&doi=10.1002%2f2014GL061881&partnerID=40&md5=09a8301c97a8b31306b26fe4ac1f19d6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6954
Appears in Collections: 气候减缓与适应
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作者单位: International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Cheng L.,Zhu J.. Artifacts in variations of ocean heat content induced by the observation system changes[J]. Geophysical Research Letters,2014-01-01,41(20).