[MITgcm-support] evaporation fields: supply or estimate?

[Jill N Schwarz]

Hi all,
Does anyone have an opinion/recommendation on whether it's better to 
supply reanalysis evaporation fields (along with precip/humid/wind etc 
etc), so that the mitgcm ocean surface temperature is not consistent 
with the evaporation, but the forcing fields are all consistent with 
each other, or to allow mitgcm to calculate the evaporation based on 
external humidity and insolation fields plus it's own ocean surface 
temperature?

Plus, if anyone else is using ERA-40 forcing data (specifically 
evaporation, precipitation and humidity 6 hourly fields) and has a 100% 
sure way of converting their 'metres of water accumulated over the 
period of the forecast' into metres/second, i'd be really grateful to 
hear how it's done- whatever i try i get values 1 or 2 orders of 
magnitude higher than the mitgcm exf_check_range expected ranges recommends.

Cheers,
jill.