[ncl-talk] Vertical wind shear calculation within 400 km radius of TC

Fri Jul 20 09:40:31 MDT 2018

I am using NCL 6.3 under Linux Fedora. I am getting an error as circle_lat
and  circle_lon undefined from the first script (
https://www.ncl.ucar.edu/Document/Functions/Contributed/geolocation_circle.shtml).
For the second script, I did not find the geolocation_circle.ncl file in
the website for loading.

How could I solve these problems?

On Sat, Jul 21, 2018 at 9:40 AM Md. Jalal Uddin <dmjalal90 at gmail.com> wrote:

> Thanks a lot.
>
> On Fri, Jul 20, 2018 at 10:08 PM Dennis Shea <shea at ucar.edu> wrote:
>
>> Also, the just released NCL 6.5.0 contains:
>>
>>
>> https://www.ncl.ucar.edu/Document/Functions/Contributed/geolocation_circle.shtml
>>
>> Radii can be specified as degrees or km.
>>
>> The two examples have some figures to illustrate
>>
>>       https://www.ncl.ucar.edu/Applications/Images/geolocation_circle.png
>> and
>>
>> https://www.ncl.ucar.edu/Applications/Images/geolocation_circle_2.png
>>
>>
>> On Fri, Jul 20, 2018 at 7:35 AM, Carl Schreck <cjschrec at ncsu.edu> wrote:
>>
>>> Here is code that I used for something similar. It calculates the radius
>>> around a storm (starting at line 85). Of course, you first have to read the
>>> storm location. IBTrACS <https://www.ncdc.noaa.gov/ibtracs/> has great
>>> resources for that.
>>>
>>> https://k3.cicsnc.org/carl/carl-ncl-tools/blob/master/filter/remove_tc_davis.ncl
>>>
>>> On Fri, Jul 20, 2018 at 9:30 AM Md. Jalal Uddin <dmjalal90 at gmail.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> I already calculated and plotted vertical wind shear for 850-200 hPa
>>>> level. Please find this script in the attachment. Now, I want to calculate
>>>> the vertical wind shear within 400 km radius of a Tropical cyclone. Could
>>>> anyone give me the formula or idea? Then, I can modify my code.
>>>>
>>>> Best regards,
>>>> Jalal
>>>>
>>>> On Wed, Jul 18, 2018 at 11:11 PM Rick Brownrigg <brownrig at ucar.edu>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Unfortunately, the script you sent does not align with the line
>>>>> numbers of the error messages -- line 47 is a blank line.  In any case, the
>>>>> error message is pretty self-explanatory -- you are making reference to a
>>>>> 3D variable as though it were a 2D variable. You might place a few
>>>>> strategic "printVarSummary()" statements for the variables involved to make
>>>>> sure your variables are what you think they are.
>>>>>
>>>>> Hope that helps...
>>>>> Rick
>>>>>
>>>>> On Tue, Jul 17, 2018 at 5:14 PM, Md. Jalal Uddin <dmjalal90 at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> I wanted to calculate mean vertical wind shear for each pressure
>>>>>> level (950-100mb). I used u and v wind component from the NCEP Climate
>>>>>> Forecast System Reanalysis (CFSR) 6-hourly Products.
>>>>>>
>>>>>> I am getting the following errors:
>>>>>> fatal:Number of subscripts do not match number of dimensions of
>>>>>> variable,(2) Subscripts used, (3) Subscripts expected
>>>>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 41
>>>>>> in file test_vws_eachlevel.ncl
>>>>>>
>>>>>> Number of subscripts do not match number of dimensions of
>>>>>> variable,(2) Subscripts used, (3) Subscripts expected
>>>>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 47
>>>>>> in file test_vws_eachlevel.ncl
>>>>>>
>>>>>> Please help.
>>>>>>
>>>>>> Cheers,
>>>>>> Jalal
>>>>>> --
>>>>>> *Md. Jalal Uddin*
>>>>>> MSc in Applied Meteorology (English Language)
>>>>>> Nanjing University of Information, Science and Technology, China
>>>>>> Jasmine Jiangsu Government Scholar
>>>>>> Cell: +8613260859092
>>>>>> Office: WMO RMTC building in middle campus
>>>>>>
>>>>>> *AND *
>>>>>> B.Sc. in Disaster Management (Hons.)
>>>>>> Patuakhali Science and Technology University, Bangladesh.
>>>>>> Cell: +8801792052662, +8801838613203
>>>>>> Email: dmjalal90 at gmail.com
>>>>>> Web: www.dmjalal90.weebly.com
>>>>>> Facebook: jalal.hossen.39
>>>>>> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
>>>>>> Twitter: dmjalal90
>>>>>> Skype: dmjalal90
>>>>>>
>>>>>> _______________________________________________
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>>>>>>
>>>>>>
>>>>>
>>>>
>>>> --
>>>> *Md. Jalal Uddin*
>>>> MSc in Applied Meteorology (English Language)
>>>> Nanjing University of Information, Science and Technology, China
>>>> Jasmine Jiangsu Government Scholar
>>>> Cell: +8613260859092
>>>> Office: WMO RMTC building in middle campus
>>>>
>>>> *AND *
>>>> B.Sc. in Disaster Management (Hons.)
>>>> Patuakhali Science and Technology University, Bangladesh.
>>>> Cell: +8801792052662, +8801838613203
>>>> Email: dmjalal90 at gmail.com
>>>> Web: www.dmjalal90.weebly.com
>>>> Facebook: jalal.hossen.39
>>>> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
>>>> Twitter: dmjalal90
>>>> Skype: dmjalal90
>>>> _______________________________________________
>>>> ncl-talk mailing list
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>>>>
>>>
>>>
>>> --
>>>
>>> <https://ncics.org/> *Carl J. Schreck III, PhD*
>>> *Research Scholar*
>>> North Carolina State University <http://ncsu.edu/>
>>> North Carolina Institute for Climate Studies (NCICS)
>>> <https://ncics.org/>
>>> 151 Patton Ave, Asheville, NC 28801
>>> e: cjschrec at ncsu.edu
>>> o: +1 828 257 3140
>>> c: +1 828 484 1702
>>> Publications
>>> <http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
>>> ncics.org/mjo
>>> CycloneCenter.org <https://www.cyclonecenter.org/>
>>>
>>> _______________________________________________
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>>>
>>>
>>
>
> --
> *Md. Jalal Uddin*
> MSc in Applied Meteorology (English Language)
> Nanjing University of Information, Science and Technology, China
> Jasmine Jiangsu Government Scholar
> Cell: +8613260859092
> Office: WMO RMTC building in middle campus
>
> *AND *
> B.Sc. in Disaster Management (Hons.)
> Patuakhali Science and Technology University, Bangladesh.
> Cell: +8801792052662, +8801838613203
> Email: dmjalal90 at gmail.com
> Web: www.dmjalal90.weebly.com
> Facebook: jalal.hossen.39
> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
> Twitter: dmjalal90
> Skype: dmjalal90
>

-- 
*Md. Jalal Uddin*
MSc in Applied Meteorology (English Language)
Nanjing University of Information, Science and Technology, China
Jasmine Jiangsu Government Scholar
Cell: +8613260859092
Office: WMO RMTC building in middle campus

*AND *
B.Sc. in Disaster Management (Hons.)
Patuakhali Science and Technology University, Bangladesh.
Cell: +8801792052662, +8801838613203
Email: dmjalal90 at gmail.com
Web: www.dmjalal90.weebly.com
Facebook: jalal.hossen.39
LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
Twitter: dmjalal90
Skype: dmjalal90
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