Re: High resolution coastilines in wrf_map_overlays function?

Tabish,

Without seeing your script, I can’t tell what the problem is. Can you email it to me?

I’m going to send a new email message to ncl-talk shortly showing how to add shapefile outlines to an existing WRF plot.

—Mary

On Feb 19, 2014, at 9:01 PM, Tabish Ansari <tabishumaransari@gmail.com> wrote:

> Dear Mary,
>
> Thank you for your mail.
>
> I added these lines to my code. However, I still get the same plot without the shapefile. I don't get any errors or warnings though.
>
>
> On 20 February 2014 04:36, Mary Haley <haley@ucar.edu> wrote:
> Tabish,
>
> To add to Adam's email: Hanna is adding her shapefiles using an older method. You can see this in her email at:
>
> http://www.ncl.ucar.edu/Support/talk_archives/2014/0317.html
>
> Her code can be simplified by using the "gsn_add_shapefile_polyline" function.
>
> So, after the call to wrf_map_overlays:
>
> plot = wrf_map_overlays(a,wks,contour_SO2,pltres,mpres)
>
> add this code:
>
> shapefile_name = "xxxxx.shp" ; replace with name of your shapefile
>
> lnres = True
> lnres@gsLineColor = "red" ; whatever color you want
> lnres@gsLineThicknessF = 2.0 ; default is 1.0
>
> dum = gsn_add_shapefile_polylines(wks,plot,shapefile_name,lnres)
>
> draw(plot) ; This will draw the map and the shapefile outlines.
> frame(wks) ; Advance the frame
>
> --Mary
>
> On Feb 19, 2014, at 11:36 AM, Adam Phillips <asphilli@ucar.edu> wrote:
>
>> Hi Tabish,
>> Please see the previous ncl-talk email that I sent to Hanna (+ncl-talk) about a 1/2hr ago. She was using wrf_map_overlays and drawing shapefile output as well. The different projections should not be a problem..
>>
>> If you have any further questions please respond to ncl-talk only.
>> Adam
>>
>> On 2/19/14, 11:30 AM, Tabish Ansari wrote:
>>> Dear Mary,
>>>
>>> Thank you very much for your mail.
>>>
>>> I was able to achieve that after figuring out a few more sample NCL scripts on coastlines. However, I have another query: I had attended your webinar and have downloaded the shapefiles for my country. However, I am not sure how to overlay them upon my WRF output which I plot using the wrf_map_overlays function.
>>>
>>> I am not able to turn on the National boundaries on for India. Please help me do that with or without using shapefiles. Another issue is: My wrf data is on a Mercator projection but the shapefile seems to be in a lat-lon rectangular projection. How do I then use it in my wrf plots?
>>>
>>> Many thanks in advance
>>>
>>>
>>> On 19 February 2014 23:48, Mary Haley <haley@ucar.edu> wrote:
>>> Hi Tabish,
>>>
>>> You should be able to use the high-res coastlines.
>>>
>>> When you call wrf_map_overlays, there are two resource lists passed in. It's the second one that you use to add the map resources to.
>>>
>>> So, for example, if you have a call:
>>>
>>> plot = wrf_map_overlays(a,wks,(/contour_tc,contour_psl,vector/),pltres,mpres)
>>>
>>> then try adding this resource before you call wrf_map_overlays:
>>>
>>> mpres@mpDataBaseVersion = "HighRes" ; defaults to "MediumRes" in WRFUserARW.ncl
>>>
>>>
>>> --Mary
>>>
>>>
>>> On Feb 19, 2014, at 12:02 AM, Tabish Ansari <tabishumaransari@gmail.com> wrote:
>>>
>>> > Hello
>>> >
>>> > I have recently downloaded the rangs data for high resolution coastlines as it is mentioned here. Can I use this option in wrf_map_overlays function or is it only a feature of gsn_csn_contour_map function?
>>> >
>>> > My aim is to plot my wrf output using these high-res coastlines so I would like to use the inherent map projection in my wrf file to plot the data.
>>> >
>>> > --
>>> > Thanks & Regards
>>> > Tabish Umar Ansari
>>> > MS Research Scholar
>>> > Environmental & Water Resources Engineering Division
>>> > Department of Civil Engineering
>>> > IIT Madras
>>> > _______________________________________________
>>> > ncl-talk mailing list
>>> > List instructions, subscriber options, unsubscribe:
>>> > http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>>
>>>
>>>
>>> --
>>> Thanks & Regards
>>> Tabish Umar Ansari
>>> MS Research Scholar
>>> Environmental & Water Resources Engineering Division
>>> Department of Civil Engineering
>>> IIT Madras
>>>
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> List instructions, subscriber options, unsubscribe:
>>>
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>> _______________________________________________
>> ncl-talk mailing list
>> List instructions, subscriber options, unsubscribe:
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>
>
>
>
> --
> Thanks & Regards
> Tabish Umar Ansari
> MS Research Scholar
> Environmental & Water Resources Engineering Division
> Department of Civil Engineering
> IIT Madras

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Received on Wed Feb 19 22:37:10 2014