DOI: 10.1007/s00382-017-3751-5
Scopus记录号: 2-s2.0-85020723792
论文题名: Consensuses and discrepancies of basin-scale ocean heat content changes in different ocean analyses
作者: Wang G. ; Cheng L. ; Abraham J. ; Li C.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-07-08 起始页码: 2471
结束页码: 2487
语种: 英语
英文关键词: Climate change
; EN4
; Hiatus
; IAP
; Ishii
; Ocean heat content
; SST
; TOA
Scopus关键词: climate change
; data set
; error analysis
; heat budget
; quantitative analysis
; reliability analysis
; sea surface temperature
; uncertainty analysis
; Pacific Ocean
; Southern Ocean
英文摘要: Inconsistent global/basin ocean heat content (OHC) changes were found in different ocean subsurface temperature analyses, especially in recent studies related to the slowdown in global surface temperature rise. This finding challenges the reliability of the ocean subsurface temperature analyses and motivates a more comprehensive inter-comparison between the analyses. Here we compare the OHC changes in three ocean analyses (Ishii, EN4 and IAP) to investigate the uncertainty in OHC in four major ocean basins from decadal to multi-decadal scales. First, all products show an increase of OHC since 1970 in each ocean basin revealing a robust warming, although the warming rates are not identical. The geographical patterns, the key modes and the vertical structure of OHC changes are consistent among the three datasets, implying that the main OHC variabilities can be robustly represented. However, large discrepancies are found in the percentage of basinal ocean heating related to the global ocean, with the largest differences in the Pacific and Southern Ocean. Meanwhile, we find a large discrepancy of ocean heat storage in different layers, especially within 300–700 m in the Pacific and Southern Oceans. Furthermore, the near surface analysis of Ishii and IAP are consistent with sea surface temperature (SST) products, but EN4 is found to underestimate the long-term trend. Compared with ocean heat storage derived from the atmospheric budget equation, all products show consistent seasonal cycles of OHC in the upper 1500 m especially during 2008 to 2012. Overall, our analyses further the understanding of the observed OHC variations, and we recommend a careful quantification of errors in the ocean analyses. © 2017, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109355
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing, Jiangsu, China; International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of St. Thomas, St. Paul, MN, United States; LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Wang G.,Cheng L.,Abraham J.,et al. Consensuses and discrepancies of basin-scale ocean heat content changes in different ocean analyses[J]. Climate Dynamics,2018-01-01,50(2018-07-08)