Investigation on the Linkage Between Precipitation Trends and Atmospheric Circulation Factors in the Tianshan Mountains DOI Open Access
Chen Chen, Yanan Hu, Mengtian Fan

et al.

Water, Journal Year: 2025, Volume and Issue: 17(5), P. 726 - 726

Published: March 1, 2025

The Tianshan Mountains are located in the hinterland of Eurasian continent, spanning east to west across China, Kazakhstan, Kyrgyzstan, and Uzbekistan. As primary water source for Central Asia’s arid regions, mountain system is pivotal regional security highly sensitive nuances climate change. Utilizing ERA5 precipitation datasets alongside 24 atmospheric circulation indices, this study delves into variances Tianshan’s patterns their correlation with large-scale within timeframe 1981 2020. We observe a seasonally driven dichotomy, mountains exhibiting increasing moisture during spring, summer, autumn months, contrasted by drier conditions winter. There pronounced spatial variability; western northern reaches exhibit more increases compared eastern southern counterparts. Influences on multifaceted, significant factors including North Pacific Pattern (NP), Trans-Niño Index (TNI), Tropical Northern Atlantic (TNA*), Extreme Eastern SST (Niño 1+2*), (NTA), 4*), Tripole Interdecadal Oscillation [TPI(IPO)], Western Hemisphere Warm Pool (WHWP*). Notably, NP TNI emerge as predominant driving upsurge precipitation. further reveals lagged response circulatory patterns, underpinning complex correlations resonance cycles varying magnitudes. Our findings offer valuable insights forecasting trends mountainous terrains amidst ongoing shifts global conditions.

Language: Английский

Identification and characterization of long-term meteorological drought events in the Yellow River Basin DOI Creative Commons

Jiepeng Li,

Lajiao Chen,

Geli Zhang

et al.

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 102992 - 102992

Published: Jan. 1, 2025

Language: Английский

Citations

1
Analysis of Spatiotemporal Characteristics of Drought in Transboundary Watersheds of Northeast Asia Based on Comprehensive Indices DOI Open Access
Jiaxin Li, Fei Liu, Donghe Quan

et al.

Water, Journal Year: 2025, Volume and Issue: 17(3), P. 382 - 382

Published: Jan. 30, 2025

Drought, as an extreme climatic event, is considered one of the most severe natural disasters worldwide. In Northeast Asia, frequency and intensity drought have been exacerbated by climate change, causing significant negative impacts on region’s socioeconomic conditions agricultural production. This study analyzed spatiotemporal evolution trends in transboundary river basins Asia from 1990 to 2020, using meteorological station data remote sensing data. The Standardized Precipitation Evapotranspiration Index (SPEI) Vegetation Condition (VCI) were employed assess characteristics, a comprehensive analysis SPEI VCI indices was conducted evaluate severity under different land cover types. results indicate that (1) past two decades, both shown increasing trend basin, with moderate mild droughts being predominant. (2) High mainly occur forest areas, accounting for 17.91% 10.76%, respectively, followed farmland.

Language: Английский

Citations

0
Investigation on the Linkage Between Precipitation Trends and Atmospheric Circulation Factors in the Tianshan Mountains DOI Open Access
Chen Chen, Yanan Hu, Mengtian Fan

et al.

Water, Journal Year: 2025, Volume and Issue: 17(5), P. 726 - 726

Published: March 1, 2025

The Tianshan Mountains are located in the hinterland of Eurasian continent, spanning east to west across China, Kazakhstan, Kyrgyzstan, and Uzbekistan. As primary water source for Central Asia’s arid regions, mountain system is pivotal regional security highly sensitive nuances climate change. Utilizing ERA5 precipitation datasets alongside 24 atmospheric circulation indices, this study delves into variances Tianshan’s patterns their correlation with large-scale within timeframe 1981 2020. We observe a seasonally driven dichotomy, mountains exhibiting increasing moisture during spring, summer, autumn months, contrasted by drier conditions winter. There pronounced spatial variability; western northern reaches exhibit more increases compared eastern southern counterparts. Influences on multifaceted, significant factors including North Pacific Pattern (NP), Trans-Niño Index (TNI), Tropical Northern Atlantic (TNA*), Extreme Eastern SST (Niño 1+2*), (NTA), 4*), Tripole Interdecadal Oscillation [TPI(IPO)], Western Hemisphere Warm Pool (WHWP*). Notably, NP TNI emerge as predominant driving upsurge precipitation. further reveals lagged response circulatory patterns, underpinning complex correlations resonance cycles varying magnitudes. Our findings offer valuable insights forecasting trends mountainous terrains amidst ongoing shifts global conditions.

Language: Английский

Citations

0