Results 141 to 150 of about 29,399 (298)

Global Diurnal Precipitation Cycle in the AI Model GraphCast and a 5‐km Unified Model: Challenges and Opportunities

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract This study evaluates the ability of the AI weather forecast model GraphCast to reproduce the global diurnal cycle of boreal summer precipitation, comparing it with Integrated Multi‐satellite Retrievals for GPM (IMERG) satellite observations, the ERA5 reanalysis, and an experimental global 5‐km Met Office Unified Model (UM) which is convection ...
Emanuele Silvio Gentile, Kieran M. R. Hunt, Lorenzo Tomassini, Ben Harvey, Oscar Martinez‐Alvarado   +4 more
wiley   +1 more source

Fractional cloudiness in shallow cumulus layers [PDF]

Fractional cloudiness influences the planetary boundary layer (PBL) by controlling the cloud-top radiative cooling rate, and regulating the buoyant production and consumption of turbulence kinetic energy.
Randall, David A.
core   +1 more source

Ocean Meanders Modulate Extratropical Cyclone Energetics

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Extratropical cyclones primarily develop over the western parts of ocean basins, where strong sea surface temperature (SST) contrasts form along western boundary currents. While previous studies have highlighted the influence of the mean SST and SST gradient on cyclones developing over these currents, they have generally disregarded their ...
Félix Vivant, Guillaume Lapeyre
wiley   +1 more source

Sensitivity of Anthropogenic Cloud Droplet Number Change to Preindustrial Emission Inventories and Physics Parameterizations

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Understanding the preindustrial (PI) to present‐day (PD) change in cloud droplet number concentration (ΔNd) is important to constrain the anthropogenic influence on clouds and aid future model projections. Perturbed parameter ensemble simulations of PI and PD conditions in the Energy Exascale Earth System Model (E3SMv3) reveal two locations ...
Hunter Y. Brown, Daniel T. McCoy, Jacqueline M. Nugent, Hailong Wang, Mingxuan Wu, Kai Zhang, Susannah M. Burrows   +6 more
wiley   +1 more source

Reduction of Rainfall During Tropical Cyclone Passage by Kuroshio Large Meander: A Case Study of Tropical Cyclone Talas (2011)

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Tropical cyclone (TC) intensity and associated rainfall depend on sea surface temperature (SST). SSTs in southern Japan, which are often hit by TCs, are likely influenced by the path of the Kuroshio. During the Kuroshio large meander (KLM), Kuroshio creates a coexistence of local warm and cold SST anomalies near the Japanese coast.
Naoki Morita, Yoshihiro Tachibana, Yuta Ando, Satoru Kasuga, Takashi Mochizuki   +4 more
wiley   +1 more source

Machine Learning‐Based Analysis of Atmospheric Process Sensitivity to Land Surface Properties Over Complex Terrain

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract This study investigates the sensitivity of numerical simulations of atmospheric processes over complex terrain to land surface model (LSM) parameters, focusing on thermally driven circulations in an idealized valley. The sensitivity analysis is performed using the Weather Research and Forecasting model coupled with the Noah‐MP LSM, for forest ...
Dario Di Santo, Cenlin He, Fei Chen, Andrea Zonato, Lorenzo Giovannini   +4 more
wiley   +1 more source

Cloud response to lateral interactions from convective strength-variable neighbors

Geoscience Letters
The organization of convective clouds plays a key role in convective system development, yet the interactions between neighboring cloud entities remain unclear.
Chuang Xu, Jingyi Chen, Chunsong Lu, Yiqi Chen   +3 more
doaj   +1 more source

Initial Atmospheric Waves Experiment (AWE) Imaging Analyses: Gravity Wave Sources, Temperatures, Pseudomomentum Fluxes, and Horizontal Wavenumber Spectra at the OH Layer

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The NASA Atmospheric Waves Experiment (AWE) employs an OH imager that began measurements aboard the International Space Station (ISS) on 22 November 2023. The motivation for AWE was to quantify gravity wave (GW) responses to diverse sources and their influences extending into the mesosphere and higher altitudes.
David C. Fritts, Robert G. Stockwell, Thomas S. Lund, P.‐Dominique Pautet, Kaoru Sato, Dai Koshin, Michael J. Taylor, Ludger Scherliess   +7 more
wiley   +1 more source

The Role of Tropical Cyclone—Ocean Interactions in Future Changes in Hurricane Katrina

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Tropical cyclone (TC) intensity and precipitation are projected to increase in the future. However, some projections are based on atmosphere‐only models in which sea surface temperatures are prescribed, whereas projections based on global atmosphere‐ocean coupled models can be subject to long‐term ocean biases.
Dakota C. Forbis, Christina M. Patricola‐DiRosario, I.‐I. Lin, Ping Chang   +3 more
wiley   +1 more source

An Assessment of Representing Land‐Ocean Heterogeneity via CAPE Relaxation Timescale in the Community Atmospheric Model 6 (CAM6)

Journal of Advances in Modeling Earth Systems
The time needed by deep convection to bring the atmosphere back to equilibrium is called convective adjustment timescale or simply adjustment timescale, typically denoted by τ. In the Community Atmospheric Model|Community Atmosphere Model (CAM), τ is the
Bidyut Bikash Goswami, Andrea Polesello, Caroline Muller   +2 more
doaj   +1 more source