Results 51 to 60 of about 313 (129)

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

Sensitivity of Tropical Cyclone Forecasts to the Loss of Low Earth Orbit Satellite Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Tropical cyclones are among the most destructive natural hazards, impacting millions of people worldwide each year. Accurate and timely forecasts are therefore essential for effective preparedness and risk mitigation. Forecast skill depends on both the performance of numerical weather prediction models and the observations assimilated into the
Isaac Moradi, Satya Kalluri, Vijay Tallapragada, Yanqiu Zhu   +3 more
wiley   +1 more source

Amending the algorithm of aerosol–radiation interactions in WRF-Chem (v4.4) [PDF]

Geoscientific Model Development
WRF-Chem (Weather Research and Forecasting model coupled with Chemistry) is widely used to assess regional aerosol radiative feedback. However, in the current version, aerosol optical properties are only calculated in four shortwave bands, while only two
J. Feng, C. Zhao, C. Zhao, C. Zhao, C. Zhao, C. Zhao, C. Zhao, Q. Du, Z. Yang, C. Jin   +9 more
doaj   +1 more source

TURAAB: A 34‐Year Dust and Atmospheric Regional Reanalysis for the Middle East, North Africa and Mediterranean—First Insights

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
TURAAB: A 34‐year dust and atmospheric regional reanalysis for the Mediterranean–MENA region. We present TURAAB, a 34‐year, 6‐km regional reanalysis integrating meteorology and dust for the Mediterranean–MENA domain. The system demonstrates good behavior, aligning closely with observational and reanalysis products. TURAAB provides a high‐value resource
Platon Patlakas, Ioannis Chaniotis, Christos Stathopoulos, Zakiah Alhajji, Ishaq Dimeji Sulaymon, Alaa Mhawish, Jumaan Alqahtani   +6 more
wiley   +1 more source

Improving Numerical Weather Forecasts of Rainfall Over Central Africa Using a Three‐Dimensional Variational Data Assimilation Technique and the Weather Research and Forecasting Model

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
This study evaluates satellite radiance assimilation using the 3DVAR technique within WRFDA to improve rainfall forecasts over Central Africa. Results show modest error reduction and improved spatial organization of rainfall compared to CHIRPS, while atmospheric variables remain comparable with ERA5, highlighting the potential of data assimilation in ...
Taguemfo Kammalac Jores, Vondou Derbetini Appolinaire, Igri Moudi Pascal, Kamsu Tamo Pierre Honoré   +3 more
wiley   +1 more source

Brief Introduction of Operational Convection‐Allowing Ensemble Prediction System of North China

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
CMA‐BJ‐EN v1.0 can provide ensemble forecasting products with a 3 km resolution covering North China, including the detailed Beijing area. It incorporates comprehensive EDA‐based initial perturbation and SPPT model perturbation techniques, representing one of China's earliest operational convective‐scale ensemble forecasting systems.
Hanbin Zhang, Yu Xia, Shuting Zhang, Yanxia Ji   +3 more
wiley   +1 more source

Radiative Forcing and Ozone Depletion of a Decade of Satellite Megaconstellation Missions

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Satellite megaconstellations (SMCs) are driving rapid increases in rocket launch and re‐entry rates, emitting pollutants throughout the atmosphere. The environmental impact of SMCs lacks characterization to determine the need for regulation. We utilize a global 3D emission inventory of recent (2020–2022) space activity that distinguishes SMC ...
Connor R. Barker, Eloise A. Marais, Eric Y. P. Tan, Sebastian D. Eastham, Glenn S. Diskin, Joshua P. DiGangi, Yonghoon Choi, Andrew W. Rollins, Eleanor Waxman, T. Paul Bui, Charles K. Gatebe, Jonathan Dean‐Day, Rajesh Poudyal   +12 more
wiley   +1 more source

Is the cloud absorption of solar radiation still underestimated notably by current model-based reanalyses?

Advances in Climate Change Research
Cloud absorption of solar radiation strongly influences Earth’s radiation balance and climate change. Whether numerical models underestimate this absorption compared with observations has long been a highly debated issue in cloud–radiation research ...
You-Jing Fu, Guang-Hui Huang, Zi-Yan Huang, Xu-Feng Wang, Han Ma, Guo-Jiang Wang, Chun-Lin Huang, Xiao-Hua Hao, Peng-Fei Zhao   +8 more
doaj   +1 more source

Evaluation of a High Resolution WRF Model for Southeast Brazilian Coast: The Importance of Physical Parameterization to Wind Representation

Atmosphere
This study assesses the performance of the Weather Research and Forecasting (WRF) model using a high-resolution spatial grid (1 km) with various combinations of physical parameterization packages to simulate a severe event in August 2021 in the ...
Layrson de Jesus Menezes Gonçalves, Júlia Kaiser, Ronaldo Maia de Jesus Palmeira, Marcos Nicolás Gallo, Carlos Eduardo Parente   +4 more
doaj   +1 more source

Streamlining hyperparameter optimization for radiation emulator training with automated Sherpa

Geoscience Letters
This study aimed to identify the optimal configuration for neural network (NN) emulators in numerical weather prediction, minimizing trial and error by comparing emulator performance across multiple hidden layers (1–5 layers), as automatically defined by
Soonyoung Roh, Park Sa Kim, Hwan-Jin Song   +2 more
doaj   +1 more source