Results 131 to 140 of about 21,896,084 (280)

Downward Positive Leader Propagation Modes and Their Effects in Positive Cloud‐to‐Ground Lightning Characteristics

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The return stroke in a cloud‐to‐ground (CG) flash is initiated when the downward leader either reaches the ground or connects with an upward leader from a grounded structure. Unlike negative downward leaders, which typically propagate in a highly branched manner, downward positive leaders (DPLs) can propagate either in a branched or unbranched
Marcelo M. F. Saba, Diego R. R. da Silva, Ivan T. Cruz, Tagianne P. da Silva, Paola B. Lauria, José Claudio O. Silva, Gabriel S. Diniz, Tom A. Warner, Rasha U. Abbasi, João Carlos M. Alves, Giovane B. Suss, Miguel B. Guimarães Neto, Listz S. Araujo, Ny T. Kieu   +13 more
wiley   +1 more source

Measurement of radio emission from extensive air showers

, 2009
A new promising development in astroparticle physics is to measure the radio emission from extensive air showers. The particles in the cascade emit synchrotron radiation (30 - 90 MHz) which is detected with arrays of dipole antennas.
Hoerandel, Joerg R.
core   +1 more source

Asynchronous Landslide Seasonality Across the United States

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Mid‐range landslide outlooks can facilitate weather‐related landslide preparedness and disaster response planning, but seasonal landslide activity remains poorly quantified at continental scales. Leveraging >55,000 reported landslides from across the United States (U.S.), we used circular statistics to quantify landslide seasonality in 67 ...
L. V. Luna, B. B. Mirus, B. D. Collins, J. P. Perkins   +3 more
wiley   +1 more source

When Thunderstorms Reach the Stratosphere: Why Storm Structure May Matter for Climate

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Deep convection that overshoots the tropopause provides one of the fastest pathways for exchanging air between the troposphere and the stratosphere. Using extensive in situ observations from the dynamics and chemistry of the summer stratosphere (DCOTSS) campaign, Shepherd et al.
Francesco Cairo
wiley   +1 more source

Analysis on mesoscale characteristics and causes of an extreme thunderstorm gale event in Jiangxi

暴雨灾害, 2019
Using datasets of conventional observations, regional automatic weather station (AWS), Doppler weather radar, wind profile radar and GFS reanalysis with 0.5°×0.5° resolution, we have conducted analysis on the mesoscale characteristics and cause of an ...
Yunhui CHEN, Aihua XU, Bin XU, Juan CHEN, Jie LI   +4 more
doaj   +1 more source

Applicability Study of a Diffusion Transformer Forecasting Model in the Complex Terrain of Guizhou

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
Performance comparison of the HARE model and the Fenglei baseline across four evaluation metrics (CSI, POD, FAR, and Frequency Bias) over a 142‐day verification period. ABSTRACT Precipitation nowcasting in complex terrains like the Guizhou Plateau is challenged by the blurry forecasts and premature dissipation common in traditional and early deep ...
Congying Li, DeXuan Kong, Chen Yuan, Tingting Liao, Yajing Zhi, Biao Wang, Yu Zhou, Gaojian Ge, Shi Pu   +8 more
wiley   +1 more source

Record‐breaking May heat in the UK: contrasting the extreme temperatures of 2024 and 1944 using climate attribution

Weather, Volume 81, Issue 5, Page 146-153, May 2026.
This study quantifies the likelihood of May temperature extremes in present, natural (climatology based on pre‐industrial forcings) and future climates. The attribution applies in the context of a May heatwave comparable to the record‐breaking 1944 event and the persistent record‐breaking monthly‐mean temperature from 2024.
Rebecca Holliday, Mark McCarthy, Jennifer Pirret, Emily Wallace   +3 more
wiley   +1 more source

Evolving Fire Frequency in the Western United States and Its Links to Human Influence

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Burned area and wildfire damages in the western United States (WUS) have increased dramatically in recent decades. Wildfire frequency, however, has shown trends that vary by data set, region, and fire size. Using a comprehensive fire occurrence data set screened for reporting artifacts from 1992 to 2020, we show a significant downward trend in
Gavin D. Madakumbura, A. Park Williams, Karen C. Short, Max A. Moritz, Bowen Wang, Caroline S. Juang   +5 more
wiley   +1 more source

Lightning identification based on multiple weather radar product data

International Journal of Digital Earth
Lightning, with its extremely high energy level, can cause fires and power outages and pose a significant risk to people and infrastructure. However, predicting lightning remains challenging.
Mingyue Lu, Tongtong Dong, Min Chen, Manzhu Yu, Hui Liu, Caifen He, Jingke Zhang, Yongwei Mao   +7 more
doaj   +1 more source

Enhancing Regional Ensemble‐Variational Data Assimilation for Convection‐Permitting Prediction With Combination of the Dual‐Localization and Scales Blending of Global and Regional Ensembles

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 5, May 2026.
Abstract This study proposes a new scheme combining ensemble blending and dual‐localization of ensemble error covariance in an ensemble‐variational (EnVar) framework to better account for both the multi‐scale characteristics of the background and background error covariance for high‐resolution data assimilation and forecasting.
Yuanbing Wang, Xinyao Qian, Yaodeng Chen, Xin Li, Jinzhong Min, Yaxin Deng   +5 more
wiley   +1 more source