The Influence of Warming Patterns on Passive Ocean Heat Uptake

The Influence of Warming Patterns on Passive Ocean Heat Uptake
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变暖模式对被动海洋吸热的影响

DOI:
10.1029/2020gl088429
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发表时间:
2020
影响因子:
5.2
通讯作者:
Newsom E
Newsom E
中科院分区:
地球科学1区
文献类型:
--
作者:
Newsom E

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气候对强迫的反应取决于海洋吸收热量的效率。这种海洋热量吸收的大部分(如果不是大多数的话)是由于温暖的表面沃茨被动地输送到海洋内部。在这里,我们研究如何影响这种被动吸热过程的效率,地表变暖的地理格局。我们发现,CMIP 5中的平均表面变暖模式使被动海洋热吸收效率降低了近25%,与均匀的表面变暖相比。这种“模式效应”的发生是因为强通风和弱表面变暖强烈共存,特别是在南大洋。然而,整个CMIP 5变暖模式的变化并没有推动被动海洋热吸收效率的显着整体传播。这种传播可能与海洋环流的模型间差异有关,我们的理想化结果表明,这可能是由南大洋和亚热带通风过程的差异所主导的。
The climate's response to forcing depends on how efficiently heat is absorbed by the ocean. Much, if not most, of this ocean heat uptake results from the passive transport of warm surface waters into the ocean's interior. Here we examine how geographic patterns of surface warming influence the efficiency of this passive heat uptake process. We show that the average pattern of surface warming in CMIP5 damps passive ocean heat uptake efficiency by nearly 25%, as compared to homogeneous surface warming. This “pattern effect” occurs because strong ventilation and weak surface warming are robustly colocated, particularly in the Southern Ocean. However, variations in warming patterns across CMIP5 do not drive significant ensemble spread in passive ocean heat uptake efficiency. This spread is likely linked to intermodel differences in ocean circulation, which our idealized results suggest may be dominated by differences in Southern Ocean and subtropical ventilation processes.
DOI: 10.1175/jcli-d-18-0843.1
发表时间: 2019-09-01
期刊: JOURNAL OF CLIMATE
影响因子: 4.9
作者:
Dong, Yue;Proistosescu, Cristian;Battisti, David S.
通讯作者: Battisti, David S.
DOI: 10.1126/sciadv.aaw4981
发表时间: 2019-06-01
期刊: SCIENCE ADVANCES
影响因子: 13.6
作者:
Khatiwala, S.;Schmittner, A.;Muglia, J.
通讯作者: Muglia, J.
DOI: 10.1029/2019av000130
发表时间: 2020-03
期刊: AGU Advances
影响因子: 8.4
作者:
S. Xie
通讯作者: S. Xie
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DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
S. Khatiwala
通讯作者: S. Khatiwala
DOI: 10.1038/s41558-018-0339-y
发表时间: 2018-12-01
影响因子: 30.7
作者:
Stuecker, Malte F.;Bitz, Cecilia M.;Jin, Fei-Fei
通讯作者: Jin, Fei-Fei