Interconnection between the Indian and the East Asian summer monsoon: Spatial synchronization patterns of extreme rainfall events

被引：24

作者：

Gupta, Shraddha ^{[1
,2
]}

Su, Zhen ^{[1
,3
]}

Boers, Niklas ^{[1
,4
,5
,6
]}

Kurths, Juergen ^{[1
,2
]}

Marwan, Norbert ^{[1
,7
]}

Pappenberger, Florian ^{[8
]}

机构：

[1] Leibniz Assoc, Potsdam Inst Climate Impact Res PIK, Potsdam, Germany

[2] Humboldt Univ, Dept Phys, Berlin, Germany

[3] Humboldt Univ, Dept Comp Sci, Berlin, Germany

[4] Tech Univ Munich, Sch Engn & Design, Dept Earth Syst Modelling, Munich, Germany

[5] Univ Exeter, Global Syst Inst, Exeter, Devon, England

[6] Univ Exeter, Dept Math, Exeter, Devon, England

[7] Univ Potsdam, Inst Geosci, Potsdam, Germany

[8] European Ctr Medium Range Weather Forecasts, Reading, Berks, England

来源：

INTERNATIONAL JOURNAL OF CLIMATOLOGY | 2023年 / 43卷 / 02期

关键词：

complex networks; East Asian summer monsoon; event synchronization; extreme precipitation; Indian summer monsoon; Intraseasonal oscillation; INTERANNUAL VARIABILITY; INTRASEASONAL VARIABILITY; TELECONNECTION PATTERN; PACIFIC; PRECIPITATION; SOUTH; PROPAGATION; NETWORK; CHINA; OSCILLATION;

D O I：

10.1002/joc.7861

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

A deeper understanding of the intricate relationship between the two components of the Asian summer monsoon (ASM)-the Indian summer monsoon (ISM) and the East Asian summer monsoon (EASM)-is crucial to improve the subseasonal forecasting of extreme precipitation events. Using an innovative complex network-based approach, we identify two dominant synchronization pathways between ISM and EASM-a southern mode between the Arabian Sea and southeastern China occurring in June, and a northern mode between the core ISM zone and northern China which peaks in July-and their associated large-scale atmospheric circulation patterns. Furthermore, we discover that certain phases of the Madden-Julian oscillation and the lower frequency mode of the boreal summer intraseasonal oscillation (BSISO) seem to favour the overall synchronization of extreme rainfall events between ISM and EASM while the higher-frequency mode of the BSISO is likely to support the shifting between the modes of ISM-EASM connection.

引用

页码：1034 / 1049

页数：16

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