Results 71 to 80 of about 471 (203)

Assessment of subgrid-scale models for the incompressible Navier–Stokes equations

Journal of Computational and Applied Mathematics, 2010
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Yan Zhang 0024, Yinnian He
openaire   +1 more source

Further development of adaptive parameter tuning in the numerical weather prediction models of Deutscher Wetterdienst

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The introduction of adaptive parameter tuning in the numerical weather prediction models of DWD in 2022 substantially improved the forecast quality of near‐surface variables like 2‐m temperature and 2‐m humidity. Since 2023, refinements and extensions, primarily affecting the surface evaporation and its diurnal cycle, have led to further advances ...
Günther Zängl
wiley   +1 more source

Vertical Wind‐Pressure Covariance and its Vertical Gradient in Atmospheric Boundary Layers From Large Eddy Simulations

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Atmospheric wind‐pressure covariances (e.g., vertical wind‐pressure covariance, w′p′‾ $\overline{{w}^{\mathit{\prime }}{p}^{\mathit{\prime }}}$) affect boundary‐layer energetics and pressure‐related corrections, yet their sign and vertical structure are inconsistently reported.
Yanzhao Zhou, Heping Liu, Xin Li
wiley   +1 more source

A Deep‐Learning‐Based Wind Gust Estimation Scheme in Complex Terrain

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Accurate prediction of gusts is critical for risk mitigation, but the turbulent processes that generate gusts are unresolved in conventional numerical weather prediction models. Here we introduce a deep‐learning‐based wind gust estimation scheme (DL‐GUST) that uses archived diagnostics from the Weather Research and Forecasting (WRF) model ...
Aiwei Li, Jiahao Feng, Zilong Li, Jingjia Luo, Wenhao Dong, Deliang Chen, Wenyu Huang   +6 more
wiley   +1 more source

The Role of Lightning in Atmospheric Chemistry

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering, Dale J. Allen, Heidi Huntrieser   +2 more
wiley   +1 more source

Air pollution mapping and variability over five European cities

Environment International
Mapping urban pollution is essential for assessing population exposure and addressing associated health impacts. High urban concentrations are due to the proximity of sources such as traffic or residential heating, and to urban density with the presence ...
Karine Sartelet, Jules Kerckhoffs, Eleni Athanasopoulou, Lya Lugon, Jeni Vasilescu, Jian Zhong, Gerard Hoek, Cyril Joly, Soo-Jin Park, Camelia Talianu, Sef van den Elshout, Fabrice Dugay, Evangelos Gerasopoulos, Alexandru Ilie, Youngseob Kim, Doina Nicolae, Roy M. Harrison, Tuukka Petäjä   +17 more
doaj   +1 more source

Gray‐Zone Simulation of the Dry Convective Boundary Layer Using Fourier Neural Operator

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Previous machine learning (ML) weather prediction models primarily focus on global mesoscale forecasting. This study develops three‐dimensional Fourier neural operator (FNO) models for simulating the dry convective boundary layer (CBL) at 800‐m grid spacing, which is a resolution in the gray zone. The filtered large‐eddy simulation data of the
Tengfei Luo, Zhijie Li, Jianchun Wang, Pak Wai Chan, Naigeng Wu, Xiaoming Shi   +5 more
wiley   +1 more source

Model Sensitivities of Biomass‐Burning Aerosol Chemical Aging, Sulfate Formation, and Cloud Droplet Activation in the Southeastern Atlantic Using CESM and E3SM

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract Biomass‐burning smoke drives large uncertainty in climate projections of the Earth's radiative balance. This is due to the chemical and physical evolution of smoke and its impact on clouds and radiation. Here we focus on the southeastern Atlantic region and its inflow of African biomass‐burning smoke during August 2017.
Calvin Howes, Pablo Saide, Mary Barth, Yan Feng, Jens Redemann, Arthur J. Sedlacek III, Manish Shrivastava, Wenfu Tang, Rob Wood, Maria Zawadowicz, Paquita Zuidema   +10 more
wiley   +1 more source

Impact of a Stratocumulus Scheme on Clouds and Feedbacks in MIROC7

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Marine stratocumulus (Sc) clouds exert a strong cooling effect on climate by reflecting solar radiation, yet many climate models underestimate their amount and cause uncertainty in equilibrium climate sensitivity (ECS). Herein, we show that incorporating a physically based Sc parameterization into the seventh version of the Model for ...
N. Hirota, H. Kawai, T. Michibata, T. Ogura, Y. Yamagami, A. T. Noda, T. Nagatomo   +6 more
wiley   +1 more source

High‐Resolution LiDAR Observations for Coupled Effects of Dry‐Air Entrainment and Haze‐Cloud Interactions on Cloud Vertical Structure

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract This study demonstrates the high‐resolution profiling of cloud microphysics in a laboratory chamber using Time‐Correlated Single Photon Counting (TCSPC) LiDAR. We present a novel retrieval method to derive vertical extinction (σ) $(\sigma )$ profiles, constrained by in situ measurements, to diagnose responses to dry‐air entrainment.
Jae Min Yeom, Suryadev Pratap Singh, Fan Yang, Hamed Fahandezh Sadi, Jesse C. Anderson, Yong Meng Sua, Manikandan Rajagopal, Steven K. Krueger, Will Cantrell, Raymond A. Shaw   +9 more
wiley   +1 more source