North Pacific Gyre Oscillation Closely Associated With Spring Arctic Sea Ice Loss During 1998-2016

被引：1

作者：

Yu, Lejiang ^{[1
,2
]}

Zhong, Shiyuan ^{[3
]}

Vihma, Timo ^{[4
]}

Sui, Cuijuan ^{[5
]}

Qiu, Yubao ^{[6
]}

Liang, Xi ^{[5
]}

机构：

[1] Polar Res Inst China, MNR Key Lab Polar Sci, Shanghai, Peoples R China

[2] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China

[3] Michigan State Univ, Dept Geog Environm & Spatial Sci, E Lansing, MI 48824 USA

[4] Finnish Meteorol Inst, Helsinki, Finland

[5] Natl Marine Environm Forecasting Ctr, Beijing, Peoples R China

[6] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing, Peoples R China

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2020年 / 125卷 / 10期

基金：

国家重点研发计划; 芬兰科学院; 中国国家自然科学基金;

关键词：

Arctic sea ice loss; the Arctic Oscillation (AO); the North Pacific Gyre Oscillation (NPGO); the Pacific Decadal Oscillation (PDO); SURFACE TEMPERATURE; CLIMATE SYSTEM; SATELLITE DATA; AMPLIFICATION; VARIABILITY; CIRCULATION; COVER; FEEDBACKS; LINKAGES; IMPACTS;

D O I：

10.1029/2019JD031962

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The relative importance of the factors contributing to Arctic spring sea ice decline remains an open question. Here we suggest a new major factor. In spring the North Pacific Gyre Oscillation (NPGO) shows a significantly increasing trend during 1998-2016, in contrast to the insignificant trend of the Pacific Decadal Oscillation (PDO) index. Nearly 40% of Arctic springtime sea ice concentration trend is statistically related to the increase of the NPGO index but only 4% to the PDO trend. Through the destructive linear interference with climatological Aleutian low, the increasing NPGO index tends to weaken the upward propagation of planetary waves, which enhances the strength of the stratospheric Arctic vortex and the Arctic Oscillation (AO). The positive AO anomalies influence the surface wind field and temperature pattern anomalies, contributing to negative sea ice anomalies in the Arctic.

引用

页数：11

共 34 条

[31] Impact of the winter North Atlantic Oscillation (NAO) on the Western Pacific (WP) pattern in the following winter through Arctic sea ice and ENSO: part I—observational evidence
Miki Oshika
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Tetsu Nakamura
Climate Dynamics, 2015, 45 : 1355 - 1366
[32] Impact of the winter North Atlantic Oscillation (NAO) on the Western Pacific (WP) pattern in the following winter through Arctic sea ice and ENSO: part I-observational evidence
Oshika, Miki
Tachibana, Yoshihiro
Nakamura, Tetsu
CLIMATE DYNAMICS, 2015, 45 (5-6) : 1355 - 1366
[33] Impact of the winter North Atlantic Oscillation (NAO) on the Western Pacific (WP) pattern in the following winter through Arctic sea ice and ENSO. Part II: multi-model evaluation of the NAO–ENSO linkage
Tetsu Nakamura
Masayuki Hara
Miki Oshika
Yoshihiro Tachibana
Climate Dynamics, 2015, 45 : 3547 - 3562
[34] Impact of the winter North Atlantic Oscillation (NAO) on the Western Pacific (WP) pattern in the following winter through Arctic sea ice and ENSO. Part II: multi-model evaluation of the NAO-ENSO linkage
Nakamura, Tetsu
Hara, Masayuki
Oshika, Miki
Tachibana, Yoshihiro
CLIMATE DYNAMICS, 2015, 45 (11-12) : 3547 - 3562

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