Climate field reconstructions for the North Atlantic region of annual, seasonal and monthly resolution spanning CE 1241-1970

This data accompanies the Clim. Past. discussion paper "Climate field reconstructions for the North Atlantic region ofannual, seasonal and monthly resolution spanning CE 1241-1970" (egusphere-2025-2911). The monthy data is produced with 300 ensemble members and recommended for general usage and for calculating annual mean, while the seasonal data (JJA, DJF) is recommend if calculating atmosperic circulation modes, such as the North Atlantic Oscillation.