KAPPA Arc Master Validation Dataset — Papers 1–5

"Master validation dataset supporting the KAPPA Arc research series (Papers 1–5), Geodesy and Geodynamics. Contains: GFS tropical validation (gfs_validation, n=25 quality), GFS tropical+temperate (gfs_validation_v2, n=26), Nottingham dedicated run (nottingham_gfs, n=6), Saudi Arabia GFS vs ERA5 (saudi_gfs_validation, n=90), Paper 2 extended tropical radiosonde validation (tropical_v6, n=24, mean gap 9.0%), ECMWF IFS 0.25° validation (ifs_validation, n=36 quality, mean gap 9.9%). Author: Khalid Zafer Ahmed Alkalali, KAPPA Labs, Riyadh, Kingdom of Saudi Arabia."