Figure 5
From: Surface frontogenesis by surface heat fluxes in the upstream Kuroshio Extension region

Rate of frontogenesis by the surface heat flux term from 2004/05 to 2014/15. Contribution of the surface heat flux terms to the frontogenesis (the first term on the right hand side of Eq. (3)) from 2004/05 to 2014/15 for October-April at 145°E–150°E (in °C °latitude−1 month−1). A positive (negative) rate of frontogenesis indicates frontogenesis (frontolysis). Since it was not possible to define the SST front in the KE region for three months, 2007/08 is not plotted. Also, the SST front was not identifiable in March-April 2007. The figure was prepared with Kaleida Graph 4.5.