[RegCNET] Bug in the interactive lake model

[Michael Notaro]

Thanks.  It would be great to include a document of the changes
so that either regcm3 or regcm4 users can benefit and add the
corrections.

On Sep 20, 2010, at 2:53 AM, GIORGI FILIPPO wrote:

> Dear MIchael
> 
> we are working on reactivating the lake model, also because we need ot for
> one of our projects. Hopefully it will be ready soon. Of course we are
> working now with version 4, so if you still use V3 which we are not
> maintaining any more, you will have to traspose to V3 the fixes in V4.
> 
> cheers,   Filippo
> 
> 
> 
>> To the RegCM3 developers,
>> 
>> It seems that the interactive lake module doesn't work
>> correctly in either serial or parallel mode.  In both
>> cases, the precipitation values become zero in the lake subroutines
>> and there is no snow on ice given the lack of precipitation.
>> Could you developers of the model please comment on the problems
>> of the lake module and how to resolve these issues?  To my
>> understanding, these issues continue not just in version 3 but
>> were not resolved in version 4 either.
>> 
>> Thanks,
>> Michael
>> 
>> 
>> 
>> 
>> On 09/19/10, Taha Al Hosary  <TAlHosary at ncms.ae> wrote:
>> 
>>> Dear all,
>>> When I ran the RegCM model I found that the results of precipitation
>>> amount changes in whole by beginning of period. What is the most
>>> appropriate start for good predict for the rainfall?
>>> Best Regards,
>>> Taha
>>> 
>>> 
>>> -----Original Message-----
>>> From: regcnet-bounces at lists.ictp.it
>>> [mailto:regcnet-bounces at lists.ictp.it](javascript:main.compose() On
>>> Behalf Of Azar Zarrin
>>> Sent: Tuesday, September 07, 2010 7:32 PM
>>> To: Regcnet at lists.ictp.it
>>> Subject: [RegCNET] Bug in the interactive lake model
>>> 
>>> Dear RegCM developers,
>>> 
>>> I'm running RegCM model coupled with Hostetler lake model for a cold 
>>> time period that ice and snow would be present over the lakes. I'm 
>>> getting the reasonable values for ice, temperature and evaporation 
>>> over the lakes, but the snow values are always zero.
>>> I've checked the lake.F and ice.F routines. The precip values which I 
>>> have printed from Ice. F are zero, while there are big amount of 
>>> precip and hence snow values outputted from the atmospheric model in 
>>> the SRF field. It seems that the precip isn't being passed into the 
>>> ice routine from the BATS and atmospheric model.
>>> 
>>> Would you please verify this bug and let me know how to solve this 
>>> error.
>>> 
>>> Many thanks,
>>> Azar
>>> 
>>> 
>>> ----
>>> Azar Zarrin
>>> Postdoctoral Research Associate
>>> Center for Climatic Research
>>> University of Wisconsin-Madison
>>> 1225 West Dayton Street, Room 1152
>>> Madison, Wisconsin 53706
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> 
>