# Re: skewT_func.ncl

From: Nicole Mölders <nicole.molders_at_nyahnyahspammersnyahnyah>
Date: Mon Apr 08 2013 - 18:00:38 MDT

On 4/8/2013 1:13 PM, Dennis Shea wrote:
> Hi Ketsiri
>
> This is not easy. This was hardwired to match a particular
> SkewT diagram: USAF Skew-t, log p diagram (form dod-wpc 9-16-1)
>
> Some things are easy ...
>
> 216 ;; ; xmin = skewtx (-33.6, skewty(1050.)) [t=deg C]
> 217 ;;xmin =-19.0 ; xmin = skewtx (-109.1,skewty(100.)) [t=deg C]
> 218 xmin =-30.55 ; xmin = skewtx (-50.0 ,skewty(1050.)) [t=deg C]
> ^^^^^^^^^^^^^^^^^^^^^^
>
> However, many other features are more difficult. Without a template,
> certain aspects of the U.S. skewT are lost. For example
>
> 140 ; --- declare isotherm [C] values and pressures [hPa] where isotherms
> 141 ; --- intersect the edge of the skew-t diagram.
> 142
> 143 temp = (/-100.,-90.,-80.,-70.,-60.,-50.,-40.,-30. \
> 144 , -20.,-10., 0., 10., 20., 30., 40., 50. /)
> 145 lendt= (/ 132., 181., 247., 337., 459., 625., 855. \
> 146 ,1050.,1050.,1050.,1050.,1050.,1050.,1050.,1050.,1050./)
> 147 rendt= (/ 100., 100., 100., 100., 100., 100., 100. \
> 148 , 135., 185., 251., 342., 430., 500., 580., 730., 993./)
>
> These are hardwired based on seeing th actual Air Force skewT diagram.
>
> It would take a *lot of work* to modify and test all the changes.
>
>
>
>
> On 4/5/13 4:32 PM, Ketsiri wrote:
>> Hello Dennis Shea,
>> I am using the skewT_func.ncl to make Skew-T plot.
>> The problem that I found is the temperature in my domain (Fairbanks, AK)
>> is below 40 degree.
>> So I would like to ask for your help to edit the skewT_func.ncl to make
>> it able to show the minimum temperature to -50 C.
>>
>> Sincerely,
>> Ketsiri
>>
>>
>>
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You have to change it in skewt_func.ncl. I attach my version. Call that

Nicole

```--
Dr. habil. rer. nat. Nicole Mölders, PhD
aka Carmen N. Moelders
Professor of Atmospheric Sciences
Chair of the Department of Atmospheric Sciences
Geophysical Institute & College of Natural Science and Mathematics
Department of Atmospheric Sciences
903 Koyukuk Drive
Fairbanks, AK 99775-7320
USA
Phone: +1 907 474 7910
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