Contrasting Responses of Atlantic and Pacific Tropical Cyclone Activity to Atlantic Multidecadal Variability
Contrasting Responses of Atlantic and Pacific Tropical Cyclone Activity to Atlantic Multidecadal Variability
复制标题
大西洋和太平洋热带气旋活动对大西洋多年代际变化的响应对比
DOI:
10.1029/2023gl102959
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发表时间:
2023
影响因子:
5.2
通讯作者:
Huang H
中科院分区:
文献类型:
--
作者:
Huang H
This research assesses the influences of Atlantic Multidecadal Variability (AMV) on global tropical cyclones (TCs) using two large ensembles of idealized global climate model simulations with opposite signs of AMV forcings superimposed (i.e., AMV+ and AMV–). We first detect TCs and then compare TC activity by basin in the two AMV experiments. We find contrasting responses of Atlantic and Pacific TC frequency to the AMV anomalies. Compared to AMV–, AMV+ significantly increases TC frequency in the North Atlantic, including those making landfalls. The increase is explained by warmer sea surface temperature, higher relative humidity, increased relative vorticity, and weaker vertical wind shear under AMV+. By contrast, AMV+ decreases TC occurrence over the western North Pacific and South Pacific, which is tied to stronger vertical wind shear and lower relative humidity. The opposite responses of TC activity to AMV+ are attributed to strengthened Walker Circulation between the Atlantic and Pacific.
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影响因子:
18.3
作者:
Meehl, Gerald A.;Hu, Aixue;Rosenbloom, Nan
通讯作者:
Rosenbloom, Nan
影响因子:
5.1
作者:
Eyring, Veronika;Bony, Sandrine;Taylor, Karl E.
通讯作者:
Taylor, Karl E.
影响因子:
2.9
作者:
K. Davis;X. Zeng
通讯作者:
X. Zeng
DOI:
10.1029/2020jd033924
发表时间:
2021
期刊:
Atmospheres
影响因子:
--
作者:
Baker A
通讯作者:
Baker A
影响因子:
4.9
作者:
Fu, Dan;Chang, Ping;Saravanan, R.
通讯作者:
Saravanan, R.