Results 61 to 70 of about 1,084 (207)

Spatial Patterns of Shallow Clouds: Challenging the Concept of Defined Regimes

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Tropical shallow clouds are a major source of uncertainty in Earth's climate sensitivity, especially through their spatial arrangement, which global climate models do not represent. Efforts to understand their organization have partly relied on classifying observed scenes, identifying four patterns as archetypal regimes.
Giovanni Biagioli, Giulio Mandorli, Lilli Johanna Freischem, Alejandro Casallas, Adrian Mark Tompkins   +4 more
wiley   +1 more source

Can Terrain Induce Moist Absolutely Unstable Layers and Enhance Extreme Rainfall?

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Extreme rainfall events in Taiwan pose significant forecasting challenges due to complex multiscale interactions. Although orographic lifting is known to trigger convection, its role in modifying atmospheric stability, specifically through the formation of moist absolutely unstable layers (MAULs), remains underexplored. This study presents the
Jyong‐En Miao, Ming‐Jen Yang, Kristen L. Rasmussen, Michael M. Bell   +3 more
wiley   +1 more source

Identifikasi Fenomena Squall Line Menggunakan Radar Cuaca EEC Pontianak (Studi Kasus Tanggal 5-6 Mei 2019) [PDF]

, 2019
Fenomena Squall line merupakan fenomena Mesoscale Convektive System (MCS) yang berbentuk linier dengan panjang lebih dari 250 km. Fenomena ini jarang terjadi di Indonesia dan dapat dideteksi dengan menggunakan Radar Cuaca. Pada tanggal 5-6 Mei 2019 Radar
Nugraheni, Imma Redha, Sari, Novita, Harisiwi, Ulifa, Tirtanegara, I Made Kembar, Himawan, Arsyil Majiid Dida   +4 more
core  

Impact of Explicitly Parameterized Mid-to-Low Level Latent Heating on the Simulation of a Squall Line in South China

, 2023
Organized mesoscale convective systems (MCSs), such as squall lines, are often poorly forecasted in numerical weather prediction models. In this study, experiments are performed to show that the vertical distribution of latent heating (LH) plays an ...
Leiming Ma, Mengjuan Liu, Xuwei Bao, Lanjun Zou, Hai Chu, Jiakai Zhu   +5 more
core   +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

The Impact of Offshore‐Propagating Squall Lines on Coastal‐Mountain Flows

Geophysical Research Letters, 2023
Dynamical physical processes associated with an onshore moving marine atmospheric boundary layer (MABL, i.e., sea breeze) over sloping terrain, sensitivity of these processes to MABL characteristics, and flow modifications induced by an offshore‐moving ...
Fan Wu, Kelly Lombardo
doaj   +1 more source

Dynamics and model representation of two contrasting extreme precipitation events in the Sahel

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 776, April 2026 Part A.
Hovmöller diagrams of the two investigated extreme precipitation events in Mali are shown for (i) IMERG observations, and ICOsahedral Nonhydrostatic model (ICON) runs with parameterization of explicit convection (ii) enabled and (iii) disabled. This work highlights that the commonly perceived benefit of using explicit convection in a state‐of‐the‐art ...
Souleymane Sanogo, Marlon Maranan, Andreas H. Fink, Beth J. Woodhams, Peter Knippertz   +4 more
wiley   +1 more source

Impacts of Humidity Adjustment Through Radar Data Assimilation Using Cloud Analysis on the Analysis and Prediction of a Squall Line in Southern China

Earth and Space Science, 2020
This study examines the impacts of humidity adjustment in a cloud analysis system on the analysis and forecast of a squall line that occurred in southeast China on 23–24 April 2007.
Yujie Pan, Mingjun Wang, Ming Xue
doaj   +1 more source

Mesoscale and microphysical processes leading to extreme hourly rainfall prior to the merger of two mesoscale convective systems in Central China

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 776, April 2026 Part A.
Short‐term extreme rainfall can be produced by the variation of low‐level warm moist airflow during mesoscale convective systems (MCSs) approaching another. The cold outflow of the rapidly moving MCS intensifies the warm moist airflow in front, enhancing the convergence and ascending motion in the quasi‐stationary MCS.
Xiaoyu Gao, Yali Luo, Jinfang Yin, Chong Wu   +3 more
wiley   +1 more source

Sensitivity of flower trade‐wind cloud organisation to mesoscale atmospheric heterogeneities

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 777, April 2026 Part B.
Trade‐wind cloud organisation is insensitive to dynamical and thermal heterogeneities but very sensitive to humidity mesoscale heterogeneities, especially in the cloud layer, where they form moist patches, and not in the sub‐cloud layer. Clouds and rain develop in moist patches, then cold pools develop progressively, initiating mesoscale circulations ...
Thibaut Dauhut, Fleur Couvreux, Dominique Bouniol   +2 more
wiley   +1 more source