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

Fri Jul 20 19:40:11 MDT 2018

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
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
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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
>>> ncl-talk at ucar.edu
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>
>>
>> --
>>
>> <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
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