KLIWAS Seite 33 MEAN 2002 - 2011 frontzone_magnitude_total [K/km] OOOOO O OOO-^ CJl CD^JCD Ol 5° E <r) Brockmann Consult GmbH 2013 I 10° E SST frontzone magnitude 10° E AATSR z z b CO iC z o IO KLIWAS Climatology of North Sea Fronts Fig. 23: Mean of gradient magnitude for frontal zone based on the data of the AATSR sensor on ENVISAT 2002 - 2011