KLIWAS Seite 32 KLIWAS Climatology of North Sea Fronts 10° W 5° W 5° E 10° E AATSR SST frontzone probability MEAN 2002 - 2011 frontzone_probability Fig. 22: Front probability based on the data of the AATSR sensor on ENVISAT 2002 - 2011 N .OCoZS N cSS N .0E.SS