Nouveau Recherche PDF, HTML, DOCX et bien d'autres formats.

Recherche

Explorer le corpus

1,111 documents correspondants.

Prépublication · 2026 arXiv EN

Scale-aware and spatially-localised optimisation of kilometre-scale MLWP models

Preserving fine-scale structure without degrading spatial accuracy is a central challenge for kilometre-scale machine-learning weather prediction (MLWP). We introduce a loss based on the dual-tree complex wavelet transform that constrains atmospheric fields jo...

James Chappell, Sophie Luise Arana et al. #physics.ao-ph
Prépublication · 2026 arXiv EN

Impact of Cumulus Parameterization and Cloud Microphysics on WRF Simulation of an Extreme Rainfall Event over Maharashtra, India: A 3 by 3 Factorial Assessment

Simulating extreme monsoon rainfall over the Konkan coast and Western Ghats remains challenging at 9 km resolution, where convection is partly resolved and partly parameterised. This study evaluates the sensitivity of Weather Research and Forecasting (WRF) sim...

Devesh, Satyam Kumar et al. #physics.ao-ph
Prépublication · 2026 arXiv EN

4D sensitivity kernels for infrasound atmospheric propagation: considering the need and impact of time dependent observation operators for acoustic wave observations in data assimilation methods

The long range propagation of acoustic waves in Earth's atmosphere is sensitive to winds and temperature variations in the upper atmosphere. Thus, infrasound observations have a strong potential to improve numerical weather models by data assimilation methods....

Raphael F. Garcia, Marc Bocquet et al. #physics.ao-ph
Prépublication · 2026 arXiv EN

FASST: A Compact Stateless Atmosphere Model for Long-Term Ocean Coupling

Coupled climate simulations are computationally expensive, largely because of the atmosphere. We introduce FASST, a coupled climate model that retains the prognostic POP2 ocean while replacing the atmosphere and sea ice with lightweight U-Net emulators. The at...

Pratham Aggarwal, Duncan Watson-Parris et al. #physics.ao-ph
Prépublication · 2026 arXiv EN

Measuring the magnetization profiles of galaxy groups and clusters

Magnetic fields are vital in determining the physical conditions of baryons in massive halos. They are, however, notoriously difficult to observe. This impacts problems from our understanding of galaxy formation, to the observed deficit in the amplitude of the...

Kritti Sharma, Vikram Ravi et al. #astro-ph.GA
Prépublication · 2026 arXiv EN

Weighing dark matter particles with gravitational waves

It is commonly assumed that the mass of dark matter particles cannot be determined from their gravitational effects when dark matter behaves as collisionless matter. Here we show that extreme-mass-ratio inspirals observable by millihertz gravitational-wave obs...

Rodrigo Vicente, Francisco Duque et al. #gr-qc
Prépublication · 2026 arXiv EN

Cosmological Constraints on Interacting Dark Matter with SPT-3G D1

Models of the dark sector in which the dark matter participates in nontrivial interactions can create detectable signatures in cosmological observables, providing non-terrestrial means of probing the nature of dark matter. In this work, we test dark matter-bar...

Cynthia Trendafilova, Fei Ge et al. #astro-ph.CO