Decadal Variability of Southeast US Rainfall in an Eddying Global Coupled Model
Decadal Variability of Southeast US Rainfall in an Eddying Global Coupled Model
复制标题
涡流全球耦合模型中美国东南部降雨量的年代际变化
DOI:
10.1029/2021gl096709
复制
发表时间:
2021
影响因子:
5.2
通讯作者:
Perlin, Natalie
中科院分区:
文献类型:
--
作者:
Zhang, Wei;Kirtman, Ben;Siqueira, Leo;Xiang, Baoqiang;Infanti, Johnna;Perlin, Natalie
Ocean variability is a dominant source of remote rainfall predictability, but in many cases the physical mechanisms driving this predictability are not fully understood. This study examines how ocean mesoscales (i.e., the Gulf Stream SST front) affect decadal Southeast US (SEUS) rainfall, arguing that the local imprint of large‐scale teleconnections is sensitive to resolved mesoscale features. Based on global coupled model experiments with eddying and eddy‐parameterizing ocean, we find that a resolved Gulf Stream improves localized rainfall and remote circulation response in the SEUS. The eddying model generally improves the air‐sea interactions in the Gulf Stream and the North Atlantic Subtropical High that modulate SEUS rainfall over decadal timescales. The eddy‐parameterizing simulation fails to capture the sharp SST gradient associated with the Gulf Stream and overestimates the role of tropical Pacific SST anomalies in the SEUS rainfall.
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影响因子:
4.9
作者:
L. Siqueira;B. Kirtman;L. Laurindo
通讯作者:
L. Siqueira;B. Kirtman;L. Laurindo
影响因子:
1.7
作者:
R. Small;S. P. Deszoeke;S. Xie;L. O'Neill;H. Seo;Q. Song;P. Cornillon;M. Spall;S. Minobe
通讯作者:
R. Small;S. P. Deszoeke;S. Xie;L. O'Neill;H. Seo;Q. Song;P. Cornillon;M. Spall;S. Minobe
影响因子:
5.2
作者:
Jie He;B. Kirtman;B. Soden;G. Vecchi;Honghai Zhang;M. Winton
通讯作者:
M. Winton
影响因子:
4.2
作者:
H. Kwon;Upmanu Lall;J. Obeysekera
通讯作者:
J. Obeysekera
影响因子:
9
作者:
Charles Jones
通讯作者:
Charles Jones