KLIWAS 
Seite 15 
SE 
10 E 
AvHRR 
SST 
frontzone vector 
direction 
MEAN 1990 - 2011 
frontzone vector direction 
West North East South West 
gradient vector points from cold to warm 
Brockmann Consult GmbH 2013 
'5°E '10°E 
5 W 
Fig. 5: Direction of mean front gradient vector based on the data of the AVHRR sensor on 
NOAA and METOP 1990 - 2011 
KLIWAS 
Climatology 
of North Sea 
Fronts