[ncl-talk] Fwd: Calculating Cloud Top Temperatures (lack of sensitivity)

[Barry Lynn]

Hi:

I have used the "ctt" wrf get user calculation on two different case
studies with WRF with 4 km grid spacing). In both, the cloud top height is
much lower than the observations, much lower than the GEFS (and much lower
than with WRF with a CU parameterization on a 12 km grid).

Hence, I think that there might be an error when calculating cloud top
temperatures with (4 km) explicit microphysics.

Is there some easy way to modify the source code to be more sensitive to
ice concentration?

Thanks,

Barry

On Tue, Jul 24, 2018 at 11:02 PM Mary Haley <haley at ucar.edu> wrote:

> Barry,
>
> You can always get the latest version of the NCL source code from our
> github repo:
>
> https://github.com/ncar/ncl
>
> If you click on the "Find File" button, then you can search for
> WRFUserARW.ncl individually.
>
> From there you should be able to right click on the file name to "download
> linked file", or you can click on it to view the contents.
>
> If you need the file from a particular version of NCL, like NCL V6.4.0,
> then from the github.com/ncar/ncl page click on the downward triangle in
> the "Branch:master" button and select "Tags". You will then see different
> versions of NCL and can search the file in any one of those.
>
> --Mary
>
>
> On Sun, Jul 22, 2018 at 5:40 AM, Barry Lynn <barry.h.lynn at gmail.com>
> wrote:
>
>> Hi:
>>
>> I have been searching the web in vain to find the latest version of this
>> file.
>>
>> I must have an old version because it doesn't contain "ctt."
>>
>> Could someone please point me in the direction of the download for this
>> file.
>>
>> (I am using version 6.4, but I must still be using an old file as it is
>> not present.)
>>
>> Thanks
>>
>> --
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, 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
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>>
>> _______________________________________________
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>>
>>
>

-- 
Barry H. Lynn, Ph.D
Senior Associate Scientist, 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

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525



-- 
Barry H. Lynn, Ph.D
Senior Associate Scientist, 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

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
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