KLIWAS 
Seite 28 
KLIWAS 
Climatology 
of North Sea 
Fronts 
10 20 30 40 SO 00 /0 80 90 100 110 120 130 140 lbO 160 170 180 190 200 210 220 230 240 2S0 260 2/0 280 290 300 310 320 330 340 3S0 300 
Fig. 10: Distribution of all geostrophic wind directions over the North Sea. Daily means for 
1990-2011. 
Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct Nov. Dec. 
Fig. 11: Monthly frequency of the AVHHR products shown in Fig. 12. Red: east wind, blue: west 
wind, green: north wind, and violet: south wind.