Datasets for the Climate-Aware Transferability Framework (CATF) for Cross-Climate Solar Irradiance Forecasting

This dataset accompanies the study "Climate-Aware Transferability Framework (CATF) for Cross-Climate Solar Irradiance Forecasting." The dataset contains processed 15-minute global horizontal irradiance (GHI) observations and derived variables used for in-domain forecasting, cross-climate transfer evaluation, and external validation. Study sites include: • Bondville, Illinois, USA (BND) – Humid Continental• Desert Rock, Nevada, USA (DRA) – Hot Desert• Fort Peck, Montana, USA (FPK) – Cold Continental• Cocos Islands, Australia (COC) – Tropical Maritime The data were derived from publicly available SURFRAD and BSRN observations and processed using a unified quality-control and resampling workflow described in the associated publication. The dataset is provided to support reproducibility of the Climate Transferability Index (CTI), Climate Transferability Potential (CTP), and Climate Regime Descriptor (CRD) analyses.