[ncl-talk] How to show P value and Trend on contour fill map?

[Atul Saini]

Hi Dr. Adam,
                    I followed the way suggested by you but it didn't
worked. I have attached the script and data file herewith this mail.

Regards,





On Sat, Dec 14, 2019 at 3:37 AM Adam Phillips <asphilli at ucar.edu> wrote:

> Hi Atul,
> In general, NCL denotes areas that are missing graphically by coloring
> them white unless modified by the user. There are no white
> areas on your trend plot, and thus I am guessing that NCL believes that
> the plotted grid does not have any missing data. Note that in
> the trend_manken documentation that missing values are not allowed to be
> input into the function. If you do have missing data
> (denoted by the _FillValue attribute) within your b array, and the b array
> grid points are consistently missing in time,
> I would use the where function to wipe out the results from trend_manken
> over those areas that were missing:
> mk=trend_manken(b,opt,0)
> copy_VarCoords(aveg,mk)
> mk1=mk(0,:,:)
> mk2=mk(1,:,:)
> mk1 = where(ismissing(b(0,:,:),mk1 at _FillValue,mk1)
> mk2 = where(ismissing(b(0,:,:),mk2 at _FillValue,mk2)
>
> The above coding assumes b at _FillValue, mk1 at _FillValue, and mk1 at _FillValue
> are properly set, and that b(0,:,:) is representative of the
> areas that need to be masked.
>
> If that advice does not fix the issue reply to the ncl-talk email list.
> Adam
>
>
>
> On Thu, Dec 12, 2019 at 2:47 AM Atul Saini via ncl-talk <ncl-talk at ucar.edu>
> wrote:
>
>> Hi NCL,
>>                I have modified the script and I think I am getting the
>> right plot having modified the script.
>>                If, I followed the right method to plot 'probability
>> level' and 'trend value', please tell me why I am getting the value for the
>> region having missing values.
>>
>> Regards,
>>
>>
>>
>>
>>
>> On Thu, Dec 12, 2019 at 2:56 PM Atul Saini <atulsainimail at gmail.com>
>> wrote:
>>
>>> Hi NCL,
>>>               I wrote the code to make map for P value and second for
>>> Trend value. But, I can't understand the process of selecting P value at
>>> the time of plot and Trend value.
>>>
>>> Please find the attached data file and script and suggest the way to
>>> plot P value and Trend value.
>>>
>>>
>>> Regards,
>>>
>>>
>>>
>>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
>
> --
> Adam Phillips
> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>
> <http://www.cgd.ucar.edu/staff/asphilli>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20191214/0b969cbd/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: MK_Test1(2).ncl
Type: application/octet-stream
Size: 1312 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20191214/0b969cbd/attachment-0001.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: WesternAgroClimRegion_MonthlySum_1901_2017Jan.nc
Type: application/x-netcdf
Size: 552392 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20191214/0b969cbd/attachment-0001.nc>