Re: observation and model spatial (raster) overlay plots

From: Paula Doubrawa <pdoubraw_at_nyahnyahspammersnyahnyah>
Date: Thu Oct 31 2013 - 09:54:49 MDT

Hello,

check out example 2 here

http://www.ncl.ucar.edu/Applications/station.shtml

station data colored according to a colorbar

Paula

On Thu, Oct 31, 2013 at 11:52 AM, Chao-Jung Chien
<chaojung.chien@gmail.com>wrote:

> Thanks Rick! Yes, I've looked at the polygons examples, and I can plot
> the stations over the model results on a map. But what I really want is to
> be able to show the actual values of the stations (rather than just
> dots/markers) that use the same color scales as those for model results.
> The model results are being shown using gsn_csm_contour_map. It seems
> gsn_add_polymarker can only put the location markers on the plot, rather
> than their own values?
>
> Again, any help on this is appreciated!
>
> Chao-Jung
>
>
>
> On Thu, Oct 31, 2013 at 6:20 AM, <brownrig@ucar.edu> wrote:
>
>> Hi,
>>
>> Have you checked out the examples at:
>>
>> http://ncl.ucar.edu/Applications/polyg.shtml
>>
>> Example #3 in particular seems to come closest to what you want to do.
>> The first half of that script deals with subsetting and manipulating data
>> into an appropriate form; depending upon your data, you may likely be able
>> to ignore that part. Everything from the comment "create plot" to the end
>> would be relevent to creating your plot, with the real essense of it being
>> those 8 lines after the comment "plot original data".
>>
>> Hope that helps...
>> Rick
>>
>>
>> On Wed, 30 Oct 2013 22:12:48 -0700
>> Chao-Jung Chien <chaojung.chien@gmail.com> wrote:
>>
>>> Hi, sorry for the newbie question. I am trying to create a similar plot
>>> like attached using NCL. Notice that the observational data are
>>> presented
>>> in diamonds, which are overlaying a gridded model results over a certain
>>> region (map).
>>>
>>> Both observation and model data are already in netcdf file formats. The
>>> observation data have the time-stamped values and associated lat/lon info
>>> for each station.
>>>
>>> Any existing NCL examples or pointers on how to create such an overlay
>>> plot
>>> are greatly appreciated.
>>>
>>> Thanks,
>>> Chao-Jung
>>>
>>
>>
>
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Received on Thu Oct 31 09:55:03 2013

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