Results 171 to 180 of about 1,912,794 (271)

Contrast in the Boundary Layer Convergence Lines at Desert−Oasis Border With Different Vegetation Gradient

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Motivated by an observed asymmetry in boundary layer convergence lines (BLCLs) between the Kubuqi and Ulan Buh desert borders of the Hetao Oasis in northern China, this work aims to document the differences in BLCL frequency and convective initiation and their potential drivers.
Zimeng Zheng, Zhiyong Meng, Quxin Cui, Yipeng Huang, Xuefeng Meng   +4 more
wiley   +1 more source

The Growing Role of Evaporative Demand in Driving Record‐Breaking Droughts in the Amazon Basin

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Amazon droughts have historically been driven by precipitation deficits, but recent escalating drought events highlight a regime shift toward “hot droughts.” By decomposing historical drought drivers (1979–2024), we show that rising evaporative demand (represented by potential evapotranspiration, PET) now acts as a primary driver of drought ...
Yizhou Zhuang, Zhen Lu, Xusheng Tang, Meng Gao   +3 more
wiley   +1 more source

Record‐Breaking Humid Heat in Northern China During Summer 2025 Driven by Kuroshio–Oyashio Extension SST Anomalies

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract A record‐breaking humid‐heat event occurred over northern China during 24 June–13 July 2025, characterized by persistent extreme wet‐bulb temperatures. The event is associated with a strong and persistent positive geopotential height anomaly, which favors the accumulation of heat and moisture.
Wenyue He, Huopo Chen, Zhicong Yin, Fei Xie   +3 more
wiley   +1 more source

Instrumental Artefacts Can Reverse Apparent Lightning–Climate Trends

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Lightning is an Essential Climate Variable, yet long‐term detection records may be compromised by changes in detection technology. Using more than three decades of Austrian lightning observations (1992–2024), we show that instrumental artefacts can reverse the apparent sign of lightning–climate trends.
Hannes Wieser, Wolfgang Schulz, Georg J. Mayr   +2 more
wiley   +1 more source

Dust Loading Increases During Topsoil Flash Droughts Under Rapid Surface Drying and Vegetation Stress

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Using satellite‐derived dust optical depth (DOD), reanalysis meteorology, and a global topsoil flash drought (TSFD) inventory for 2003–2022, we find that TSFD events are associated with increased dust loading at the global scale. During TSFD events, 44.7% of land pixels exhibited positive DOD anomalies.
Xuesong Wang, Chunlai Zhang, Xi Chen
wiley   +1 more source

Regional Trends in Northern Hemisphere Summer Extratropical Cyclone Activity and Their Link to Precipitation and Temperature Trends

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract In recent years a robust weakening of the storm tracks has been identified in reanalysis data. This trend has been linked to coinciding changes in surface temperature extremes and precipitation over land. Here we use a surface‐based metric to quantify regional trends in the boreal summertime low‐level extratropical cyclone activity (ECA) and ...
Ian Baxter, Tiffany Shaw, Isla R. Simpson, Pu Lin, Zhihong Tan   +4 more
wiley   +1 more source

Atmospheric Circulation Drives Dry‐to‐Wet Abrupt Alternation in the Lancang–Mekong River Basin

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract The Lancang–Mekong River Basin (LMRB), a crucial transboundary region that sustains millions of people across Southeast Asia, faces growing threats from compound hydrological extremes under climate change. Among them, dry‐to‐wet abrupt alternation (DWAA) is particularly critical, intensifying risks to agriculture and water security.
Yufan Chen, Junguo Liu, Shuyu Zhang, Hong Wang, Haifan Liu, Chen Liang, Deliang Chen, Mingfu Guan   +7 more
wiley   +1 more source

Assessing the Importance of Spatial Scale in Climate-Health Models: The Effect of Temperature on Emergency Department Visits in Richmond, Virginia. [PDF]

Geohealth
Le-Huynh TL, Novicoff WM, DeGuzman PB, Davis RE.   +3 more
europepmc   +1 more source

Expanding OCO‐2's Volcanic Observation Record to the Low‐Intensity 2021 Fagradalsfjall and the Ninth Sundhnúkur Crater Row Eruptions

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Since 2021, Iceland experienced 12 volcanic eruptions, all located on the Reykjanes peninsula. From these events, the 2021 Fagradalsfjall and the ninth Sundhnúkur crater row (16 July–5 August 2025) eruptions were detected by the Orbiting Carbon Observatory‐2 (OCO‐2).
C. Delbet, P. Ringrose, J. Eidsvik, M. Calovi   +3 more
wiley   +1 more source

Why April Stands Out: Monthly Impacts of Internal Variability on Arctic Amplification

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Observed Arctic amplification (AA), defined as the ratio of Arctic‐mean to global‐mean surface air temperature (SAT) trends, peaks in April, a feature not captured by climate models. Here, we quantify the impact of internal variability on Arctic‐mean SAT trends in March, April, and May from 1980 to 2022 using multiple approaches, including ...
Skylar Gale, Qiang Fu, Hailong Wang, Edward Blanchard‐Wrigglesworth, Muyin Wang, Ash Gilbert, Aodhan Sweeney, Stephen Po‐Chedley   +7 more
wiley   +1 more source