Impacts of record-breaking compound heatwave and drought events in 2022 China on vegetation growth

Agricultural and Forest Meteorology, Год журнала: 2023, Номер 344, С. 109799 - 109799

Опубликована: Ноя. 10, 2023

Язык: Английский

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High Temperature Accelerates Onset Speed of the 2022 Unprecedented Flash Drought Over the Yangtze River Basin

Geophysical Research Letters, Год журнала: 2023, Номер 50(22)

Опубликована: Ноя. 14, 2023

Abstract The Yangtze River Basin experienced one of the worst flash droughts on record during 2022 summer, but relative contributions precipitation deficit and high temperature to drought onset speed intensity are difficult separate due compounding feature hot dry extremes caused by persistent high‐pressure anomalies. Based high‐resolution land surface model ensemble simulations with specified meteorological conditions that reproduce and/or anomalies 2022, we find is dominant factor for triggering drought. Meanwhile, further accelerates decrease soil moisture intensifies condition increasing evapotranspiration, which contributes 37% ± 14% (31% 15%) 36% 11% (30% over upper reach (middle lower reaches). Our study reveals nontrivial role in intensifying drought, might be more significant warmer future.

Язык: Английский

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Research progresses and prospects of multi-sphere compound extremes from the Earth System perspective

Science China Earth Sciences, Год журнала: 2024, Номер 67(2), С. 343 - 374

Опубликована: Янв. 4, 2024

Язык: Английский

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Characteristic changes in compound drought and heatwave events under climate change

Atmospheric Research, Год журнала: 2024, Номер 305, С. 107440 - 107440

Опубликована: Апрель 23, 2024

Язык: Английский

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Are longer and more intense heatwaves more prone to extreme precipitation?

Global and Planetary Change, Год журнала: 2024, Номер 236, С. 104428 - 104428

Опубликована: Март 26, 2024

Язык: Английский

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Relative Contributions of Large‐Scale Atmospheric Circulation Dynamics and Anthropogenic Warming to the Unprecedented 2022 Yangtze River Basin Heatwave

Journal of Geophysical Research Atmospheres, Год журнала: 2024, Номер 129(4)

Опубликована: Фев. 8, 2024

Abstract The unprecedented 2022 Yangtze River Basin (YRB) heatwave is a threat to human society and natural ecology, so the understanding of its underlying drivers critical regional climate adaptation resilience. Here we conducted multi‐method attribution analysis on contribution atmospheric circulation change anthropogenic impacts occurrence probability intensity this extreme heatwave. Based nonstationary statistical analysis, YRB 1‐in‐900‐year event 1‐in‐110‐year with without considering in fitting, respectively. large‐scale meteorological condition shows that featured an anomalous high‐pressure system favors hot dry column, overlaid by subsidence clear skies which leads warming greater solar heating. ensemble constructed analogue analyses show anomaly fails explain observed SAT anomalies fully. Specifically, 46% (0.132 ± 0.027°C decade −1 ) trend during 1979–2022 (0.290 0.048°C caused associated thermodynamic feedback, while remaining 54% (0.157 0.038°C changes circulation. Our findings patterns contributions could provide valuable information for mitigation strategies context climate.

Язык: Английский

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Contrasting East Asian climate extremes in 2020 and 2022 tied to zonal flow

Environmental Research Letters, Год журнала: 2024, Номер 19(10), С. 104019 - 104019

Опубликована: Авг. 30, 2024

Abstract Subtropical East Asia (STEA) experienced a historic flood in the summer of 2020, and drought heatwaves 2022. Previous studies emphasized role western Pacific subtropical high (WPSH), but there is paradox that contrasting climate extremes over STEA 2020 2022 are both associated with anomalously strong WPSH. Given local vertical motion has dominant control on precipitation variability, here we investigate mechanism for variability STEA. In most extratropical regions Northern Hemisphere, ascent (descent) aligns southerly (northerly) flow troposphere due to northward tilting isentropic surfaces. However, surfaces tilt eastwards existence warm center Tibetan Plateau (TP). Thus, insensitive strength related intensity WPSH sensitive westerly meridional shift jet. The notably increased water vapor transport into had little impact atmospheric motion. Asian jet displaced southwards (northwards) (2022), leading anomalous (easterly) flows mid-upper from TP jet’s southern flank, prompting contributed (drought) conditions (2022). Our results highlight essential zonal generating surface because its

Язык: Английский

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Causes of the severe drought in Southwest China during the summer of 2022

Atmospheric Research, Год журнала: 2024, Номер 303, С. 107320 - 107320

Опубликована: Март 5, 2024

Язык: Английский

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Multiscale causes of the 2022 Yangtze mega-flash drought under climate change

Science China Earth Sciences, Год журнала: 2024, Номер 67(8), С. 2649 - 2660

Опубликована: Июль 3, 2024

Язык: Английский

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Summer heatwaves in China during 1961–2021: The impact of humidity

Atmospheric Research, Год журнала: 2024, Номер 304, С. 107366 - 107366

Опубликована: Март 25, 2024

Язык: Английский

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