3 papers
stat.CO2026
Two Localization Strategies for Sequential MCMC Data Assimilation with Applications to Nonlinear Non-Gaussian Geophysical Models
Hamza Ruzayqat, Hristo G. Chipilski, Omar Knio
We present a localized data assimilation (DA) scheme based on sequential Markov Chain Monte Carlo (SMCMC) \cite{smcmc}, a provably convergent method for filtering high-dimensional,…
astro-ph.SR2025
HelioFill: Diffusion-Based Model for EUV Reconstruction of the Solar Farside
Firas Ben Ameur, Rayan Dhib, Yahia Battach +4
The loss of STEREO-B in 2014 created a persistent blind spot in Extreme Ultraviolet (EUV) imaging of the solar farside. We present HelioFill, to the authors' knowledge, the first d…
math.DS2023
Downscaling Using CDAnet Under Observational and Model Noises: The Rayleigh-Benard Convection Paradigm
Mohamad Abed El Rahman Hammoud, Edriss S. Titi, Ibrahim Hoteit +1
Efficient downscaling of large ensembles of coarse-scale information is crucial in several applications, such as oceanic and atmospheric modeling. The determining form map is a the…