January 2013

Velocity vectors and zonal wind at 700 mb

Contour levels for the zonal wind are 5 m s^-1. A westerly zonal wind component exceeding 5 m s^-1 is shaded pink, an easterly component exceeding this value is shaded light blue.

Click here for the plotting code.

(u,v) vectors and u contours: average for the month

(u,v) vectors and u contours: individual times every six hours