Internal tsunamigenesis and ocean mixing driven by glacier calving in Antarctica.
Internal tsunamigenesis and ocean mixing driven by glacier calving in Antarctica.
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DOI：
10.1126/sciadv.add0720
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发表时间：
2022-11-25
期刊：
影响因子：
13.6
通讯作者：
中科院分区：
文献类型：
--
作者：
南极洲周围的海洋混合对冰川动力学和冰架退缩、海冰和海洋生产力产生关键影响，从而影响全球海平面和气候。传统的范式是，这是由风、潮汐和浮力驱动的。来自南极半岛的直接观测表明，冰川崩解引发了内部海啸，海啸的破裂推动了剧烈的混合。由于分布广泛且频繁，这些内部海啸在推动区域陆架混合方面至少与风相当，而且比潮汐重要得多。它们可能与海洋冰川崩解的任何地方有关，包括格陵兰岛和整个北极。冰解的频率可能会随着海洋温度的升高而变化，这表明在气候变暖的情况下，可能会转向内部海啸发生和混合。海啸是由冰川崩解在海洋中产生的，推动了对气候和海平面至关重要的地区的剧烈混合。
Ocean mixing around Antarctica exerts key influences on glacier dynamics and ice shelf retreats, sea ice, and marine productivity, thus affecting global sea level and climate. The conventional paradigm is that this is dominated by winds, tides, and buoyancy forcing. Direct observations from the Antarctic Peninsula demonstrate that glacier calving triggers internal tsunamis, the breaking of which drives vigorous mixing. Being widespread and frequent, these internal tsunamis are at least comparable to winds, and much more important than tides, in driving regional shelf mixing. They are likely relevant everywhere that marine-terminating glaciers calve, including Greenland and across the Arctic. Calving frequency may change with higher ocean temperatures, suggesting possible shifts to internal tsunamigenesis and mixing in a warming climate. Tsunamis are generated within the ocean by glacier calving, driving vigorous mixing in areas key for climate and sea level.
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影响因子：
3.3
作者：
De Robertis, Alex;Higginbottom, Ian
通讯作者：
Higginbottom, Ian
DOI：
10.1098/rsta.2017.0176
发表时间：
2018-06-28
期刊：
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
影响因子：
--
作者：
Barnes DKA;Fleming A;Sands CJ;Quartino ML;Deregibus D
通讯作者：
Deregibus D
影响因子：
5.2
作者：
Amundson, J. M.;Truffer, M.;Motyka, R. J.
通讯作者：
Motyka, R. J.
影响因子：
5.2
作者：
Buesseler, Ken O.;McDonnell, Andrew M. P.;Ducklow, Hugh W.
通讯作者：
Ducklow, Hugh W.
影响因子：
4.1
作者：
Daru, V;Tenaud, C
通讯作者：
Tenaud, C