期刊
GEOPHYSICAL RESEARCH LETTERS
卷 43, 期 19, 页码 10356-10365出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2016GL070413
关键词
repeat hydrography; ocean heat content; GO-SHIP
资金
- British National Environmental Research Council (NERC) [NE/K004387/1]
- Climate Observation Division
- Climate Program Office
- National Oceanic and Atmospheric Administration (NOAA)
- U.S. Department of Commerce
- NOAA
- NERC [NE/K004387/1, NE/K005480/1, NE/N018095/1] Funding Source: UKRI
- Natural Environment Research Council [NE/K005480/1, noc010012, NE/N018095/1, NE/K004387/1] Funding Source: researchfish
Global and regional ocean warming deeper than 2000m is investigated using 35years of sustained repeat hydrographic survey data starting in 1981. The global long-term temperature trend below 2000m, representing the time period 1991-2010, is equivalent to a mean heat flux of 0.065 0.040Wm(-2) applied over the Earth's surface area. The strongest warming rates are found in the abyssal layer (4000-6000m), which contributes to one third of the total heat uptake with the largest contribution from the Southern and Pacific Oceans. A similar regional pattern is found in the deep layer (2000-4000m), which explains the remaining two thirds of the total heat uptake yet with larger uncertainties. The global average warming rate did not change within uncertainties pre-2000 versus post-2000, whereas ocean average warming rates decreased in the Pacific and Indian Oceans and increased in the Atlantic and Southern Oceans.
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