Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1808838115 |
Global reconstruction of historical ocean heat storage and transport | |
Zanna, Laure1; Khatiwala, Samar2; Gregory, Jonathan M.3,4; Ison, Jonathan1; Heimbach, Patrick5,6 | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:4页码:1126-1131 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | Most of the excess energy stored in the climate system due to anthropogenic greenhouse gas emissions has been taken up by the oceans, leading to thermal expansion and sea-level rise. The oceans thus have an important role in the Earth's energy imbalance. Observational constraints on future anthropogenic warming critically depend on accurate estimates of past ocean heat content (OHC) change. We present a reconstruction of OHC since 1871, with global coverage of the full ocean depth. Our estimates combine timeseries of observed sea surface temperatures with much longer historical coverage than those in the ocean interior together with a representation (a Green's function) of time-independent ocean transport processes. For 1955-2017, our estimates are comparable with direct estimates made by infilling the available 3D time-dependent ocean temperature observations. We find that the global ocean absorbed heat during this period at a rate of 0.30 +/- 0.06 W/m(2) in the upper 2,000 m and 0.028 +/- 0.026 W/m(2) below 2,000 m, with large decadal fluctuations. The total OHC change since 1871 is estimated at 436 +/- 91 x 10(21) J, with an increase during 1921-1946 (145 +/- 62 x 10(21) J) that is as large as during 1990-2015. By comparing with direct estimates, we also infer that, during 1955-2017, up to one-half of the Atlantic Ocean warming and thermosteric sea-level rise at low latitudes to midlatitudes emerged due to heat convergence from changes in ocean transport. |
英文关键词 | ocean heat content Earth' s energy imbalance sea-level rise climate change ocean processes |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456336100011 |
WOS关键词 | SEA-LEVEL ; NORTH-ATLANTIC ; MODEL ; CIRCULATION ; MECHANISMS ; TRACERS ; ABYSSAL ; BUDGET ; FLUX |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/205184 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Oxford, Dept Phys, Oxford OX1 3PU, England; 2.Univ Oxford, Dept Earth Sci, Oxford OX1 3AN, England; 3.Met Off Hadley Ctr, Exeter EX1 3PB, Devon, England; 4.Univ Reading, Natl Ctr Atmospher Sci Climate, Reading RG6 6BB, Berks, England; 5.Univ Texas Austin, Inst Computat Engn & Sci, Austin, TX 78712 USA; 6.Univ Texas Austin, Jackson Sch Geosci, Austin, TX 78712 USA |
推荐引用方式 GB/T 7714 | Zanna, Laure,Khatiwala, Samar,Gregory, Jonathan M.,et al. Global reconstruction of historical ocean heat storage and transport[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(4):1126-1131. |
APA | Zanna, Laure,Khatiwala, Samar,Gregory, Jonathan M.,Ison, Jonathan,&Heimbach, Patrick.(2019).Global reconstruction of historical ocean heat storage and transport.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(4),1126-1131. |
MLA | Zanna, Laure,et al."Global reconstruction of historical ocean heat storage and transport".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.4(2019):1126-1131. |
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