This can only happen if the land is drying out leading to more sensible and less latent heat flux at the surface. (watertechbyrie.com)
The accuracy of the resulting weekly fields is determined by comparisons with moored - buoy wind and latent heat flux estimates, which are deployed and maintained by four different institutions in the Atlantic and Pacific oceans. (cersat.ifremer.fr)
Notably, the quote «Mölg and Hardy (2004) show that mass loss on the summit horizontal glacier surfaces is mainly due to sublimation (i.e. turbulent latent heat flux) and is little affected by air temperature through the turbulent sensible heat flux.» (realclimate.org)