[Wrf-users] Output from metgrid.exe includes extremely high soil moisture values

[Barry Lynn]

One would need version WPS 3.9 or higher to solve that problem.

On Tue, Jan 9, 2018 at 6:22 PM, Don Morton <don.morton at borealscicomp.com>
wrote:

> Hi,
>
> My apologies for not providing a detailed response, but I just wanted to
> say that I vaguely recall that last summer, sometime in late July, NCEP
> seemed to change some of structure of its GRIB files, products, etc.  I
> also (vaguely) recall that the WRF community came up with a message
> suggesting the use of a "fixed" utility for preprocessing.
>
> Again, I don't recall all the details, but, if it was me in your position,
> I might start googling and see if the change in format might be the root of
> your problem.
>
> All the best,
>
> Don Morton
>
> ---
> Don Morton, Owner/Manager
> Boreal Scientific Computing LLC
> Fairbanks, Alaska USA
> http://www.borealscicomp.com/
> http://www.borealscicomp.com/Miscellaneous/MortonBio/
>
> On Tue, Jan 9, 2018 at 4:07 PM, 吉村 僚一 <yoshimura-r at edge.ifs.tohoku.ac.jp>
> wrote:
>
>> Dear all,
>>
>>
>>
>> I am not very good at English, so I apologize in advance.
>>
>>
>>
>> I am running WRFV3.8 with NCEP FNL 1deg by 1deg reanalysis (
>> https://rda.ucar.edu/datasets/ds083.2/index.html#!description) as the
>> initial and lateral condition.
>>
>> I have trouble getting proper soil moisture values for the initial
>> condition.
>>
>> When I run real.exe and wrf.exe using met_em_d01* data from WPS, real.exe
>> was OK, but in running wrf.exe, I got an error message below.
>>
>>
>>
>> Flerchinger USEd in NEW version. Iterations= 10
>>
>>
>>
>> So I checked soil moisture and temperature values in met_em* files, and I
>> found extremely high soil moisture values in a particular land area.
>>
>> I attached a file of variable SM010040 , and a picture of its
>> distribution below.
>>
>> The proper range of SM010040 values will be from 0 to 1, but in this
>> picture, you will find moisture values in the particular area(41N,141E or
>> 43N,144E) exceed this range by about E+20 order.
>>
>> In this case, I used NCEP FNL dataset at 2017/08/02 UTC. When I used
>> 2017/09 dataset, the same error also occurred.
>>
>> But, when I used 2016/08, 2017/05 or 2017/02 dataset, wrf.exe did not
>> detect any errors and I got proper initial soil moisture values.
>>
>>
>>
>> I also attached namelist.wps and Vtable.GFS for your information.
>>
>>
>>
>> If you know anything about it, please let me know.
>>
>>
>>
>> Regards,
>>
>> Yoshimura
>>
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>>
>>
>
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>


-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

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