Annular modes in the extratropical circulation. Part I: Month-to-month variability

• Main Authors: Thompson, David W. J., Wallace, John M.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2000
• Subjects: Arctic; Midwinter
• Online Access: https://ueaeprints.uea.ac.uk/id/eprint/85442/; https://doi.org/10.1175/1520-0442(2000)013<1000:AMITEC>2.0.CO;2

The leading modes of variability of the extratropical circulation in both hemispheres are characterized by deep, zonally symmetric or “annular” structures, with geopotential height perturbations of opposing signs in the polar cap region and in the surrounding zonal ring centered near 45° latitude. T...