crossrefApplied Sciences2026-06-02
Satellite-Based High-Precision Clear-Sky Irradiance Estimation Using Machine Learning and Physical Model Harmonization
Nifat Sultana, Narumasa Tsutsumida
Accurate short-term estimation of clear-sky Global Horizontal Irradiance (GHI) is vital for solar resource assessment and grid operations, yet existing methods rely on sparse radiometers and coarse global weather reanalysis (e.g., MERRA-2 at 50–70 km spatial resolution with 1 mon…