KLIWAS 
Seite 19 
SST - Front Zone Vector Magnitude 
AVHRR 
mean 1990-2011 
SPRING 
AVHRR 
mean 1990-2011 
SUMMER 
frontzone_vector 
magnitude [K/km] 
KLIWAS 
Climatology 
of North Sea 
Fronts 
Fig. 9: Magnitude of mean gradient vector for frontal zone based on the data of the AVHRR 
sensor on NOAA and METOP 1990 - 2011 and for seasons