Dear Alison,
here are my answers:
>> snow_evaporation_amount ->
>> lwe_thickness_of_surface_snow_sublimation_amount open question (surface)
>>
>> >> > >
>> >> > > snow_evaporation_amount
>> >> > > metre
>> >> > > ERA40
>>
>> Alisons question:
>>
>> I am not entirely clear as to whether this is evaporation of snow
>> lying on the surface, or of falling snow. Please could you clarify?
>> In either case "amount" is used in standard names to mean "mass per
>> unit area" which would not be appropriate for units of metres. I
>> would suggest using "depth" rather than "amount". Also, if the snow
>> is being converted directly to water vapour we should call it
>> sublimation rather than evaporation.
>>
>> Sorry, but I have not got an answer, but it is in work. I think it is
>> snow lying on the surface. But I would like to check it.
>>
>>
> OK, thank you, I will wait for clarification.
>
>
Here Manuel Fuentes (ECMWF) answers:
> 2) In the ECMWF standard table 128 the variable "044 ES Snow
> evaporation of water" is unclear - does it refer only to lying snow or
> to falling snow as well?
>
I have asked the experts, and this is their reply:
It refers to snow on the ground. So it is a flux from the surface into
into the atmosphere through the conversion of snow into water vapour.
>>
>>
>>
> You have given these names question marks on the right-hand side. I think in fact that we are already agreed that the names are fine and the only outstanding question is the definition of "where_ice". I would interpret "where_ice" to mean anywhere where there is either land or sea ice - do you agree with that?
>
>
>
====================================================
surface_net_downward_shortwave_flux_where_ice
where_ice means sea ice or lake ice
===================================================
But I think we should wait for the cell-method discussion about the
where condition.
What do you think ?
Best wishes,
Heinke
>> With regards
>> Heinke H?ck
>> Max-Planck-Institut fuer Meteorologie (MPI-M) Tel +49 40 41173-465
>> Abteilung Modelle und Daten Fax +49 40 41173-400
>> Bundesstr. 53
>> D-20146 Hamburg Germany
>> Email: heinke.hoeck at zmaw.de
>> http://www.mad.zmaw.de/
>>
>>
>
> Best wishes,
> Alison
>
> ------
> Alison Pamment Tel: +44 1235 778065
> NCAS/British Atmospheric Data Centre Fax: +44 1235 446314
> Rutherford Appleton Laboratory Email: J.A.Pamment at rl.ac.uk
> Chilton, Didcot, OX11 0QX, U.K.
>
Received on Thu Jul 05 2007 - 02:14:33 BST
