The Antarctic Oscillation Structure in an AOGCM with Interactive Stratospheric Ozone
Annular modes (4). ERA-40 reanalysis data: zonal mean differences between AAO+ and AAO−, respectively, AO+ and AO−. (a) Temperature T in (K). JJA. (b) Temperature T in (K). DJF. (c) Zonal wind u in (m/s). JJA. (d) Zonal wind u in (m/s). DJF. Confidence levels are given by white lines.