[ncl-talk] Wind_vector_query

[Kunal Bali]

The resultant vector basically represents the equation
 sqrt [(U-wind)2  + (V-wind)2]


So if we use the function

Plot = gsn_csm_vector_map(wks,u,v,res)

Is that mean it is providing resultant wind plot or resultant wind
direction with wind speed.

If it is providing resultant wind plot, then using code (wks, v,u, res)
instead of (wks, u, v, res). It is plotting different wind plot.


If the code
Plot = gsn_csm_vector_map(wks,u,v,res) plotting resultant wind vector using
equation  sqrt [(U-wind)2  + (V-wind)2], Then it should plot the same resut
in both the cases (wks, u,v, res) and (wks, v,u, res). Right ?

please provide some information on that.




Kunal Bali
Research Scholar
Radio & Atmospheric Science Division
CSIR - National Physical Laboratory
New Delhi - 110012
India





On Fri, Jun 24, 2016 at 9:50 AM, Kunal Bali <kunal.bali9 at gmail.com> wrote:

> I could not understand, what to use
>
>
>
> Kunal Bali
> Research Scholar
> Radio & Atmospheric Science Division
> CSIR - National Physical Laboratory
> New Delhi - 110012
> India
>
>
>
>
>
> On Thu, Jun 23, 2016 at 9:54 PM, Dennis Shea <shea at ucar.edu> wrote:
>
>> The function plots the resultant vector.
>>
>>
>> http://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_csm_vector_map.shtml
>>
>> On Sat, Jun 18, 2016 at 8:31 AM, Kunal Bali <kunal.bali9 at gmail.com>
>> wrote:
>>
>>> Dear NCL users
>>>
>>> Please correct me. The code given below is just for potting wind
>>> directions but not far resultant vector.
>>>
>>> Plot = gsn_csm_vector_map(wks,u,v,res)
>>>
>>> It will provide only zonal wind direction. If we modify above code with
>>>  (wks,v,u,res) ‎then it will provide the meridional wind direction.
>>>
>>> So if I want to plot the resultant vector of u and v then what should I
>>> do?
>>>
>>> Regards
>>> Kunal bali
>>>
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>>
>
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