NAM_10
NAM 10 hPa
Northern Annular Mode at 10 hPa from standardized polar-cap height (negative = weak vortex). — Baldwin & Thompson 2009
DATA THROUGH 2026-10-12 · UPDATED 2026-10-13 11:02 UTC
Northern Annular Mode at 10 hPa from standardized polar-cap height (negative = weak vortex). — Baldwin & Thompson 2009