Enhanced impacts of the North Pacific Victoria mode on the Indian summer monsoon onset in recent decades DOI Creative Commons
Suqin Zhang, Xia Qü, Gang Huang

et al.

Geoscience Letters, Journal Year: 2024, Volume and Issue: 11(1)

Published: Feb. 25, 2024

Abstract Victoria mode (VM), the second dominant of North Pacific sea surface temperature variability, has been identified as one important factors influencing Indian summer monsoon (ISM) onset. The positive phase May VM delays ISM onset by both tropical and extratropical pathways. Here, we found a significant interdecadal enhancement their relationship since early 1990s, which is mainly attributed to structure changes increased variance VM. In recent decades, shown more warm SST anomalies in central Pacific, drive large-scale divergent circulation effectively. This enhanced leads low-level divergence reduced rainfall Asian region. excites equatorial Rossby wave response anomalous easterly winds northern Ocean, delaying Besides, after 1992/1993 stimulates stronger train. stationary train induces cooling northwest India, weakens land-sea thermal contrast delayed finding should be taken into account improve short-term predictions

Language: Английский

Revisiting the Linkage Between the Pacific–Japan Pattern and Indian Summer Monsoon Rainfall: The Crucial Role of the Maritime Continent DOI Creative Commons
Peng Hu, Wen Chen, Shangfeng Chen

et al.

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(3)

Published: Jan. 30, 2024

Abstract The Pacific–Japan (PJ) pattern traditionally refers to the meridional dipole mode of rainfall and low‐level circulation over tropical western North Pacific mid‐latitude East Asia. However, recent studies have reported that PJ can also affect Indian summer monsoon (ISM) via anomalous Ocean. We summarize currently available indices re‐examine linkage between ISM. found only are significantly correlated with in southern India two containing signals Maritime Continent. Continent stimulate anomalies Ocean, thereby strengthening PJ–ISM linkage. When associated removed, becomes weak insignificant. should be chosen carefully when studying climatic impacts pattern.

Language: Английский

Citations

17
Characteristics of super drought in Southwest China and the associated compounding effect of multiscalar anomalies DOI
Lin Wang, Wen Chen,

Gang Haung

et al.

Science China Earth Sciences, Journal Year: 2024, Volume and Issue: unknown

Published: June 6, 2024

Language: Английский

Citations

9
Interdecadal variability and possible drivers of summer extreme precipitation on the low latitude plateau of southwestern China DOI
Jinlong Yan,

Yunxia Wan,

Hongbo Li

et al.

Theoretical and Applied Climatology, Journal Year: 2025, Volume and Issue: 156(1)

Published: Jan. 1, 2025

Language: Английский

Citations

1
Quantifying the Teleconnections Between East Asian Winter Precipitation and Tropical Sea Surface Temperatures Using Causal Analysis DOI Creative Commons
Tianjiao Ma, Wen Chen, Xiadong An

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(5)

Published: Feb. 28, 2025

Abstract It was previously revealed that winter precipitation in East Asia is linked to tropical Sea Surface Temperature (SST) anomalies the Indian and Pacific Oceans. While several teleconnection pathways have been identified, accurately measuring these connections determining relative contributions of SSTs remains a challenge. We employed novel causal inference approach quantify effects on Asian precipitation, focusing its leading mode (denoted as Pr). Using PCMCI method, we first derived graph between Pr eastern/western Ocean EP, WP, IO respectively). Based graph, then applied quantitative analysis using Wright's path method. The results indicated WP‐SST had most substantial impact Pr, with 1 Standard Deviation (SD) increase 0.24 SD decrease at 1‐month lag 0.17 2‐month lag. monsoon winds subtropical jet stream are identified critical mediators this effect. Additionally, EP‐SST notable positive influence warming 0.12 lag, while IO‐SST exhibits minor essential note that, traditional regression indicates explained largest portion variance among three SSTs, but exerts more significant role driving variations, aligning numerical experiments.

Language: Английский

Citations

1
Global Effects of Climate Change in the South China Sea and Its Surrounding Areas DOI Creative Commons
Song Yang, Deliang Chen, Kaiqiang Deng

et al.

Ocean-Land-Atmosphere Research, Journal Year: 2023, Volume and Issue: 3

Published: Jan. 30, 2023

Climate change in the South China Sea and its surrounding areas (SCSSA), which include Indo-Pacific Oceans, Southeast Asia, Tibetan Plateau, could exert profound impacts on both regional global climate patterns. This study examines unique characteristics of SCSSA context warming, highlighting rapid warming core areas, such as Oceans Plateau. The has led to increased Asian summer monsoon precipitation, expanded Hadley circulation, an extended influence Madden–Julian Oscillation, marked changes tropical cyclone frequency genesis location SCSSA. These Plateau affect not only downstream climates (East North America, Antarctica, America) through anomalous Rossby waves but also upstream regions (North Africa, Europe, Atlantic, Middle East) by modulating atmospheric overturning circulations wave discusses projected under various future scenarios, indicating that effects local remote weather extremes would be intensified. Understanding these dynamics is crucial for mitigating consequences change.

Language: Английский

Citations

14
Evaluation of future climatology and its uncertainty under SSP scenarios based on a bias processing procedure: A case study of the Lancang-Mekong River Basin DOI
Zhouliang Sun, Yanli Liu, Hua Chen

et al.

Atmospheric Research, Journal Year: 2023, Volume and Issue: 298, P. 107134 - 107134

Published: Nov. 28, 2023

Language: Английский

Citations

12
Multi-Scale Variations and Future Projections of Dry-Wet Conditions over the Monsoon Transitional Zone in East Asia: A Review DOI Creative Commons
Wen Chen,

Jinling Piao,

Shangfeng Chen

et al.

Fundamental Research, Journal Year: 2024, Volume and Issue: unknown

Published: March 1, 2024

The East Asian monsoon transitional zone (MTZ) is a northeast-southwest oriented belt between the wet areas and northwestern dry of China with fragile ecology high climate sensitivity. in MTZ characterized by strong instability large variability, resulting frequent occurrence extreme weather events. A number studies have focused on dry-wet characteristics from different perspectives, taking into account increasing problems water scarcity ecological risks. This study reviews multi-scale variations, underlying mechanisms future projections conditions over under global warming. main findings last few decades are summarized as follows: 1) interannual variability summer precipitation combined impacts oceanic forcings internal atmospheric teleconnection patterns at mid-high latitudes; 2) an interdecadal decrease amount was observed late 1990s due to Silk-Road pattern-like wave train triggered Atlantic Multidecadal Oscillation-like SST warming North positive-to-negative phase shift Pacific Decadal Oscillation (PDO); 3) pronounced drying trend has been during 1951–2005, which mainly attributed human activities including increased aerosols, land-use changes, thermal forcing Tibetan Plateau, PDO; 4) projected increase considerable uncertainties Arctic Polar-Eurasian pattern. review attempts provide clear systematic picture distinctive changing features MTZ, attract interest scientific community change this unique "transition" domain.

Language: Английский

Citations

5
Comparative analysis of east Asian summer monsoon northern boundary indices: variability, climate anomalies and driving mechanisms DOI
Zixuan Ren, Wen Chen, Lin Wang

et al.

Climate Dynamics, Journal Year: 2024, Volume and Issue: 63(1)

Published: Dec. 11, 2024

Language: Английский

Citations

3
Interannual Variations in Winter Precipitation in Northern East Asia DOI Open Access
Yuchi Zhang, Tianjiao Ma, Y. Li

et al.

Water, Journal Year: 2025, Volume and Issue: 17(2), P. 219 - 219

Published: Jan. 15, 2025

Winter precipitation (P) in East Asia (EA) is characterized by a wetter south and drier north. Most of the existing research has concentrated on elucidating mechanisms winter P southern EA, with relatively less attention given to northern (NEA). Our analysis showed that correlation coefficient (c.c.) average anomaly percentage (PAP) between EA NEA 0.24 for period 1950–2023, indicating substantial regional difference. An empirical orthogonal function (EOF) was conducted PAP NEA. The first second mode (EOF1 EOF2) account 45.5% 17.9% total variance, respectively. EOF1 region-wide uniform spatial pattern whereas EOF2 exhibits north–south dipole pattern. Further indicated two EOF modes are related distinct atmospheric circulation external forcings. Specifically, linked wave train from Central Siberia toward Japan, while connected an similar Western Pacific Variations mid–high latitude sea surface temperatures, ice, snow potential factors influencing EOF1. close relationship tropical SST anomalies.

Language: Английский

Citations

0
A non-ENSO driver of the South China Sea winter monsoon: North Pacific sea ice DOI Creative Commons

Chang Kong,

Xiaodan Chen, Zhiping Wen

et al.

Atmospheric and Oceanic Science Letters, Journal Year: 2025, Volume and Issue: unknown, P. 100593 - 100593

Published: Jan. 1, 2025

Language: Английский

Citations

0