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Surface energy fluxes

A vital part of the IFS is assessment of the thermal, moisture and momentum fluxes between the model atmosphere and the underlying surface.  For this reason it is necessary to have:

...

HTESSEL uses a system of "tiles" to describe the characteristics of each of the various and time-varying surface conditions within each grid box.  Energy fluxes over land are modelled using several differing land "tiles".  Energy fluxes over lake and coastal waters are modelled by Flake as a separate additional "tile".   Ocean waters are modelled within NEMO and are dealt with separately from HTESSEL. 



(FUG Associated with Cy49r1)