supported by the National Basic Research Program of China (973Program) (Grant No. 2010CB428603);the National Natural Science Foundation of China (Grant Nos. 40805017 and 41175041)
Using ECWMF ERA-40 and Interim reanalysis data, the planetary wave fluxes associated with the February extreme stratospheric polar vortex were studied. Using the three-dimensional Eliassen-Palm (EP) flux as a measure ...