ENSO and PDO-related interannual and interdecadal variations in the wintertime sea surface temperature in a typical subtropical strait
ENSO and PDO-related interannual and interdecadal variations in the wintertime sea surface temperature in a typical subtropical strait
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ENSO和PDO相关的典型亚热带海峡冬季海面温度的年际和年代际变化
DOI：
10.1007/s00382-022-06270-9
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发表时间：
2022-06
期刊：
影响因子：
4.6
通讯作者：
Yuwu Jiang
中科院分区：
文献类型：
--
作者：
Yimin Zhang;Zhonghua Zhao;Enhui Liao;Yuwu Jiang
台湾海峡是我国冬季海表温度变化最大的区域。在1982-1999年和1999-2014年冬季，全球变暖和变冷的趋势分别达到每10年± 1 °C左右，比邻近的沿海地区和公海大4倍左右。以前的研究已经注意到这些相反的趋势，但原因仍然不清楚，因为对这种局部信号与大尺度气候信号的遥相关研究不足（例如，太平洋年代际振荡，PDO;厄尔尼诺-南方涛动，ENSO）。利用不同的周期滤波器，将不同时间尺度的台湾海峡冬季海温距平（TS-SSTa）与大尺度气候信号进行分离和关联。除全球变暖的影响外，PDO的年代际信号对1982-2014年冬季TS-SSTa的增暖和变冷趋势（主要是PDO的正位相）也有显著的贡献。在PDO正位相期间，北太平洋海平面气压（SLP）偶极子发展，导致欧亚东部沿海出现沿着东北风急流，并通过东亚冬季风（EAWM）和北太平洋副热带环流影响年代际冬季TS-SSTa。在负PDO位相，北太平洋的影响减弱，热带太平洋通过ENSO相关的东亚气旋/反气旋异常的北移，对年际冬季TS-SSTa的影响更大。因此，在PDO的正位相和负位相期间，来自北太平洋（PDO）和热带太平洋（ENSO）的影响交替控制着TS-SSTa的变化。
The Taiwan Strait has the largest temporal variability in the wintertime sea surface temperature (SST) along the China coast. The warming and cooling trends reach about ± 1 °C per decade in winter during 1982–1999 and 1999–2014, respectively, which are about 4 times larger than neighboring coastal area and open ocean. Previous studies have noted these opposite trends, but the cause remains unclear due to insufficient study on teleconnections of this local signals to large-scale climate signals (e.g., Pacific Decadal Oscillation, PDO; El Niño–Southern Oscillation, ENSO). Using different period filters, wintertime SST anomaly in the Taiwan Strait (TS-SSTa) of different timescales were separated and connected to the large-scale climate signals. Besides the impact of global warming, we also found that the interdecadal signal of PDO contribute significantly to the warming and cooling trends of the wintertime TS-SSTa during 1982–2014 (mostly the positive PDO phase). During the positive PDO phase, a sea level pressure (SLP) dipole develops at the North Pacific, leading to a northeasterly wind jet along the Eurasian eastern coast, and affecting the interdecadal wintertime TS-SSTa through the East Asia Winter Monsoon (EAWM) and North Pacific Subtropical Gyre. During the negative PDO phase, the influence from North Pacific weakens, and the tropical Pacific has a greater influence on the interannual wintertime TS-SSTa through the northward movement of the ENSO-related cyclone/anticyclone anomaly over East Asia. Thus, the influence from North Pacific (PDO) and tropical Pacific (ENSO) alternately control the TS-SSTa variation during the positive and negative PDO phases.
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影响因子：
2.7
作者：
Ehteram, Mohammad;Mousavi, Sayed Farhad;El-Shafie, Ahmed
通讯作者：
El-Shafie, Ahmed
影响因子：
4.6
作者：
Liao E;Lu W;Yan XH;Jiang Y;Kidwell A
通讯作者：
Kidwell A
影响因子：
3.2
作者：
E. Kalnay;A. Dalcher
通讯作者：
E. Kalnay;A. Dalcher
影响因子：
5.2
作者：
Aaron Levine;M. Mcphaden;D. Frierson
通讯作者：
Aaron Levine;M. Mcphaden;D. Frierson
DOI：
10.1002/joc.3370010106
发表时间：
1981
期刊：
International Journal of Climatology
影响因子：
--
作者：
J. Rogers
通讯作者：
J. Rogers