Hi Roy and Jonathan,
using "sea" instead of "lake" would be fine with me. There is the
long name anyway that I can use for further description.
However, I need at least one parameter that contains information how
to distinguish between ocean and lake in a gridbox. The model needs
to know for which grid box the lake subroutine should be switched
on. Can we introduce a parameter called "lake_area_fraction" analogue
to "sea_area_fraction" and "land_area_fraction"? Or do ypu have any
other Idea how to distinguish between ocean and lake grid boxes?
By the way, what is the difference between "sea" and "ocean". When
should I use "ocean" and when "sea" for standard_names?
Regards
Burkhardt
Am 04.11.2005 um 13:32 schrieb Roy Lowry:
> Dear All,
>
> I share Jonathan's concerns and think defining a separate set of
> names for lakes is starting down a very slippery slope.
>
> Cheers, Roy.
>
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>>>> Jonathan Gregory <j.m.gregory at reading.ac.uk> 10/31/05 9:30 AM >>>
> Dear All
>
> Burkhardt proposed a list of standard names associated with lakes:
>
>> land_lake_fraction 1
>> lake_depth m
>> lake_surface_fetch m
>> depth_of_thermal_active_lake_layer m
>> temperature_at_top_of_sediments_layer K
>> temperature_at_bottom_of_sediments_layer K
>> solar_attenuation_coefficient_in_lake m-1
>> lake_surface_temperature K
>> lake_surface_snow_temperature K
>> lake_surface_ice_temperature K
>> lake_watercolumn_temperature K
>> lake_mixed_layer_temperature K
>> lake_bottom_temperature K
>> lake_shape_factor 1
>> lake_surface_snow_thickness m
>> lake_surface_ice_thickness m
>> lake_mixed_layer_thickness m
>> thickness_sediments_upper_layer_of_lake m
>
> Before we try to develop precise definitions of these, I think we
> have to
> decide in general whether we want separate names for lakes, given
> that many of
> the concepts are the same as for the ocean. The distinction is
> quite arbitrary
> after all: considering, say, Lake Victoria, Lake Superior, the
> Caspian Sea, the
> Black Sea, the Mediterranean Sea, the Atlantic Ocean - where does
> one draw the
> line between lake and ocean?
>
> We have quite a lot of standard names for ocean, sea ice and sea water
> properties which could be used for lake, lake ice and lake water
> properties,
> and likewise for rivers. Would it be confusing to use ocean/sea
> names for
> lakes? If it would, another way to avoid separately specifying a
> whole set of
> lake names would be to define aliases which map ocean->lake, sea-
> >lake and
> sea_water-> lake_water in existing standard names.
>
> Comments and suggestions welcome. Cheers
>
> Jonathan
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-----------
Dr. Burkhardt Rockel
GKSS Forschungszentrum
Max-Planck-Strasse
D-21502 Geesthacht
Germany
Phone: +49 4152 87 2008
Fax: +49 4152 87 2020
Email: Burkhardt.Rockel at gkss.de
www:
http://coast.gkss.de
-----------
Received on Fri Nov 04 2005 - 06:13:29 GMT
