Sustainable Cities and Society, Год журнала: 2024, Номер unknown, С. 106091 - 106091
Опубликована: Дек. 1, 2024
Язык: Английский
Advances in Climate Change Research, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Advances in Climate Change Research, Год журнала: 2024, Номер 15(3), С. 452 - 463
Опубликована: Июнь 1, 2024
Understanding how hydrological factors interrelate is crucial when examining the impact of climate warming on snowmelt. However, these connections are often overlooked, leading to an unclear relationship between temperature and This study investigates complex interplay snowmelt in Tibetan Plateau from 1961 2020, focusing extreme high-temperature events affect frequency Using a structural equation model, we detected three temperature-related that predominantly influenced The annual average was found have significant indirect snowmelt, mediated by changes snowfall, snow depth cover. By contrast, days (daily maximum temperatures exceeding 90th percentile) heat waves (at least consecutive days) negatively affected directly or indirectly. direct effect increasing associated with earlier onset periods, which accelerated shortened duration periods. Additionally, reduction cover owing emerged as main factor suppressing frequencies. We also revealed spatiotemporal variations temperature‒snowmelt highly depended patterns. elucidated why suppresses Plateau, highlighting mediating roles snow-related phenological factors. findings will provide scientific support for simulation water management policymaking alpine regions worldwide.
Язык: Английский
Процитировано
6
Atmosphere, Год журнала: 2025, Номер 16(4), С. 434 - 434
Опубликована: Апрель 8, 2025
Against the backdrop of global warming, heatwaves in China have become more frequent, posing serious risks to public health and socio-economic stability. However, existing identification methods lack precision, driving mechanisms remain unclear. This study applies Excess Heat Factor (EHF) characterize across from 2013 2023, analyzing their spatiotemporal patterns exploring key drivers such as atmospheric circulation soil moisture. Key findings reveal significant regional differences: (1) Frequency Duration—The southeastern coastal regions (e.g., Yangtze River Delta) experience higher annual heatwave frequencies (1.75–3.5 events) but shorter durations (6.5–8.5 days). In contrast, arid northwest has both frequent (1.5–3.5 events per year) prolonged (8.5–14.5 days) heatwaves, while Tibetan Plateau sees weaker events. (2) Driving Factors—Heatwaves Delta are primarily driven by an intensified subtropical high, leading subsidence clear-sky conditions. Fujian, anomalous low-level winds enhance heat accumulation, areas show strong moisture–temperature coupling, where drier soils intensify warming. Conversely, moisture a influence on Plateau, suggesting dominant control. It is important note that EHF index used this does not directly account for humidity, which may limit its applicability humid regions. Additionally, ERA5 ERA5-Land reanalysis data were systematically validated against ground observations, introducing potential uncertainties.
Язык: Английский
Процитировано
0
Atmospheric Science Letters, Год журнала: 2025, Номер 26(2)
Опубликована: Фев. 1, 2025
Abstract Observational evidence has shown that Compound Wind and Precipitation Extremes (CWPEs) can cause substantial disruptions to natural economic systems under climate change. This study conducts a historical assessment future projection of CWPEs characteristics in the vulnerable region Southeast Asia (SEA) based on two Shared Socioeconomic Pathways (SSPs) from Scenario Model Intercomparison Project (ScenarioMIP) Coupled Phase 6 (CMIP6). Results reveal northern Philippines, eastern northwestern coastal areas Indochina Peninsula have experienced most frequent, strongest during period 1985–2014. SEA is projected experience frequency increase 14.4% (22.5%) intensity 9.4% (19.5%) SSP2‐4.5 (SSP5‐8.5) scenario at end 21st century (2070–2099). Kalimantan appears replace Philippines as affected area, particularly high emission scenario. In addition, changes are primarily driven by precipitation, with average contribution precipitation across whole 62.8% (70.4%) For uncertainties, model uncertainty decreases over time (from 73.9% 42.7%), while increases 20.3% 55.0%). contrast, for wind projections, remains dominant factor 81.3% 87.6%) little The present reveals sensitivity global warming highlighting risks disaster impact such regions.
Язык: Английский
Процитировано
0
Atmospheric Research, Год журнала: 2024, Номер unknown, С. 107845 - 107845
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
1
Atmosphere, Год журнала: 2024, Номер 15(11), С. 1399 - 1399
Опубликована: Ноя. 20, 2024
Global warming has led to an increasing frequency and intensity of extreme precipitation events worldwide. The Henan Province in central China usually occurs summer, with the climate transition from northern subtropical warm temperate climate. Compared study other regions, pays less attention. In order systematically understand spatial temporal characteristics Province, this applied RClimDex model obtain nine indices based on daily data 90 meteorological stations 1981 2020. Linear propensity estimation, M-K mutation test, Morlet wavelet analysis, geostatistical analysis were used investigate variation region. results indicated that continuous dry days (CDD), number heavy rain (R20mm), maximum (Rx1day), for 5 consecutive (Rx5day), (SDII) showed overall trend, but none passed significance test (p > 0.01). Extremely strong (R99p) Rx5day changed abruptly 1994, Rx1day SDII 2004. seven indices, except CDD wet (CWD), had a 30-year cyclical pattern. multi-year average gradually decreased north south, CWD R20mm increased south. northwest southeast, west east. can contribute valuable insights trends future predictions provide scientific support coping changes disaster prevention.
Язык: Английский
Процитировано
0
Sustainable Cities and Society, Год журнала: 2024, Номер unknown, С. 106091 - 106091
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
0