[ncl-talk] r,theta (radar) plotting

[Md. Jalal Uddin]

Thank you, sir. regrid_15 example works very well for one center (attached
figure).

How can I plot for multiple centers?
How can I set x tick and y tick (-300,300) like radar_2 example? (
https://www.ncl.ucar.edu/Applications/Scripts/radar_2.ncl)

On Tue, Jul 9, 2019 at 5:42 AM Dennis Shea <shea at ucar.edu> wrote:

> Not sure what you are asking: What does "my TRMM rainfall data" look like.
> ===
>
> Generally: TRMM is on a 0.25 global rectilinear grid [400x1440] spanning
> 49.875S to 49.875N
>
> ===
>
> If you have the latitudes and longitudes corresponding to some  r,theta
> [say: plat(:,:), plon(:,:) ] then use
>
> res at sfXArray = plon
> res at sfYArray = plat
>
> and use appropriate contour function.
> ====
>
> If you want to specify some central location [clat, clon] then maybe
>
> *http://www.ncl.ucar.edu/Applications/regrid.shtml*
> <http://www.ncl.ucar.edu/Applications/regrid.shtml>
> Example 15
>
> If you do not want the plot over a map: eliminate 'mp' related resources
> and use (say) gsn_csm_contour instead of gsn_csm_contour_map. See the
> leftmost and center figures.
>
>
>
>
>
>
>
>
>
>
>
> On Sun, Jul 7, 2019 at 11:53 PM Md. Jalal Uddin via ncl-talk <
> ncl-talk at ucar.edu> wrote:
>
>> Hi all,
>>
>> How can I plot my TRMM rainfall data as a similar to radar_2 example (
>> https://www.ncl.ucar.edu/Applications/Scripts/radar_2.ncl)?
>>
>>  How can I modify here?
>>
>> angles       = f->azimuth
>>   angles(0:63) = angles(0:63)-360     ; fix to make angles monotonic
>>
>>   DEGTORAD = 0.017453292519943
>>   xcenter  = 0.0
>>   ycenter  = 0.0
>>   radius   = 960 * 0.25 ; this is radius in kilometers
>>
>> ; Create 2D coordinate arrays.
>>   inc      = radius / (dsizes(1) - 1)
>>   x        = inc * ispan(0,dsizes(1)-1,1)
>>   angles2d = conform(dbz,angles,0)
>>   x2d      = conform(dbz,x,1)
>>   xarr     =  xcenter + x2d  * cos(DEGTORAD * angles2d)
>>   yarr     =  ycenter + x2d  * sin(DEGTORAD * angles2d)
>>
>>
>> Best wishes,
>> Jalal
>> --
>> *Md. Jalal Uddin*
>> MSc in Applied Meteorology (English Language)
>> Nanjing University of Information, Science and Technology, China
>> B.Sc. in Disaster Management (Hons.)
>> Patuakhali Science and Technology University, Bangladesh.
>> Cell: +8613260859092, +8801792052662
>> 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
B.Sc. in Disaster Management (Hons.)
Patuakhali Science and Technology University, Bangladesh.
Cell: +8613260859092, +8801792052662
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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