# [ncl-talk] radial distance vs. height plot

Dennis Shea shea at ucar.edu
Fri Jun 24 07:55:19 MDT 2016

```Not sure if I understand but ...

Start: (lat0, lon0)
Use great circle formula to calculate distance (radial_distance_1) to a 2nd
point (lat1,lon1)
Interpolate to find the value at (lat1,lon1)
Repeat

http://www.ncl.ucar.edu/Document/Functions/Built-in/gc_latlon.shtml

On Thu, Jun 23, 2016 at 11:06 PM, Ipsita Putatunda <
ipsita.putatunda at gmail.com> wrote:

> Dear Dennis,
> what I want finally, but my question is before that I need to calculate a
> variable (var) with varying its radial distance, that part am not sure how
> to do. I know the central point say var(lat,lon) and want to show through
> the radius of 500km how it is varying starting from the centre to 500 km.
> Hope I have make you understand my question. If anyone give me some idea
> how can I proceed I'll be thankful. Any help in this issue will be
> appreciated.
>
> Thanks,
> Ipsita
>
> On Thu, Jun 23, 2016 at 11:13 PM, Dennis Shea <shea at ucar.edu> wrote:
>
>> If you are asking if NCL has a function to calculate "how variable
>>
>>
>> It seems to me, if you have done the calculation, it is 'just' an x
>> (radius) - y (height) plot.
>>
>> On Wed, Jun 22, 2016 at 6:11 AM, Ipsita Putatunda <
>> ipsita.putatunda at gmail.com> wrote:
>>
>>> Dear NCL users,
>>>     I want to draw a plot where I want to show how a variable changes
>>> with radius vs height from a central point (lat,lon).
>>> The function "nggcog" gives the lat and lon values with specific
>>> radius,but am not sure how to plot a variable with changing radial distance
>>> vs height.
>>> Any help in this issue will be appreciated.
>>>
>>> Thanks,
>>> Ipsita
>>>
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>>
>
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