[ncl-talk] Do not show significance level in a correlation map
Md. Jalal Uddin
dmjalal90 at gmail.com
Fri Jan 19 03:42:31 MST 2024
Thank you, sir, for your kind efforts. Your code works for
hadisst.187001-202212.nc data. However, when I use my sst data from NOAA (
sst.mnmean.nc), the code does not work. I do not know the reason for this.
Sorry to bother you.
NOAA sst data:
https://psl.noaa.gov/repository/entry/show?entryid=cac1c2a6-a864-4409-bb77-1fdead8eeb6e
On Fri, 19 Jan 2024 at 15:32, Md. Jalal Uddin <dmjalal90 at gmail.com> wrote:
> This is great, thank you so much!
>
> On Wed, 17 Jan 2024 at 05:09, Adam Phillips <asphilli at ucar.edu> wrote:
>
>> Hi Jalal,
>> I was able to plug in a monthly SST dataset that I have here, so I was
>> able to run your script. So I think what is happening is that the stippling
>> is so small/faint/sparse that it is hard to see it. I made two changes to
>> your script:
>> 1 - I was getting stippling over land as the rtest function was seemingly
>> not recognizing the _FillValue of the input array. (I find this strange,
>> but have not used rtest before.) To fix this, I put in a where statement
>> and added the _FillValue attribute to your p array:
>> p = rtest(r_sst,42,0)
>> * p at _FillValue = 1.e20*
>> copy_VarCoords(r_sst, p)
>> * p = where(ismissing(r_sst),p at _FillValue,p)*
>>
>> 2 - I modified/added the following gsn_contour_shade options to make the
>> stippling more visible:
>>
>> * opt at gsnShadeFillScaleF = 0.25 ; add extra density
>> opt at gsnShadeFillDotSizeF = 0.0015*
>>
>> I have attached the modified script, along with the plot that I am
>> getting.
>> Hope that helps!
>> Best,
>> Adam
>>
>>
>> On Mon, Jan 15, 2024 at 8:58 PM Md. Jalal Uddin <dmjalal90 at gmail.com>
>> wrote:
>>
>>> Thank you very much, sir. I used the following resources:
>>>
>>> opt = True
>>> opt at gsnShadeFillType = "pattern"
>>> opt at gsnShadeLow = 17 ; stipple
>>> opt at gsnShadeFillScaleF = 0.5 ; add extra density
>>>
>>> plot = gsn_csm_contour_map(wks,r_sst, res) ; create plot
>>> plot2 = gsn_csm_contour(wks,p, res2)
>>> plot2 = gsn_contour_shade(plot2,0.05,999.,opt)\
>>>
>>> overlay (plot, plot2)
>>>
>>> draw(plot)
>>> frame(wks)
>>>
>>> However, I did not get output as stipple areas where p value is less
>>> than 0.05. I added the full code including Nino data in the attachment.
>>> Should I send the SST data (sst.mon.mean.nc) via ftp?
>>>
>>> On Sat, 13 Jan 2024 at 06:55, Adam Phillips <asphilli at ucar.edu> wrote:
>>>
>>>> Hi Jalal,
>>>> As you are pattern filling, and the default is color filling, you need
>>>> to set:
>>>> opt at gsnShadeFillType = "pattern"
>>>> I am also unclear what you mean by this statement:
>>>> "...to show the significance level as a shaded pattern where p value is
>>>> less than 0.05 and 0.01"
>>>>
>>>> Do you want to stipple areas less than .05? If so the following code
>>>> should do that:
>>>> opt = True
>>>> opt at gsnShade*Low* = 17 ; stipple
>>>> opt at gsnShadeFillScaleF = 0.5 ; add extra density
>>>> plot2 = gsn_contour_shade(plot2,0.05,999.,opt)
>>>>
>>>> If instead you want to stipple areas less than .01, you will need to
>>>> modify the contour levels in your res2 resource list to have a contour at
>>>> .01:
>>>> res2 at cnMinLevelValF = 0.00 ; set min contour level
>>>> res2 at cnMaxLevelValF = .10 ; set max contour level
>>>> res2 at cnLevelSpacingF = 0.01 ; set contour spacing
>>>>
>>>> opt = True
>>>> opt at gsnShade*Low* = 17 ; stipple
>>>> opt at gsnShadeFillScaleF = 0.5 ; add extra density
>>>> plot2 = gsn_contour_shade(plot2,0.01,999.,opt)\
>>>>
>>>> Hope that answers your question. As always please respond to the
>>>> ncl-talk email list with further questions.
>>>> Best,
>>>> Adam
>>>>
>>>> On Fri, Jan 5, 2024 at 6:15 AM Md. Jalal Uddin via ncl-talk <
>>>> ncl-talk at mailman.ucar.edu> wrote:
>>>>
>>>>> Dear all,
>>>>>
>>>>> I have tried to use the gsn_contour_shade function to show the
>>>>> significance level as a shaded pattern where p value is less than 0.05 and
>>>>> 0.01. However, the output map does not show the shaded areas (please see
>>>>> the attached map).
>>>>>
>>>>> Here are some codes:
>>>>> r_sst = escorc(ano_nino,ano_sstSON(lat|:,lon|:,time|:)) ;
>>>>> ccr(lat,lon)
>>>>> copy_VarCoords(ano_sstSON(0,:,:), r_sst)
>>>>> r_sst at long_name = "Correlation: r_sst"
>>>>>
>>>>> p = rtest(r_sst,42,0)
>>>>> copy_VarCoords(r_sst, p)
>>>>>
>>>>> opt = True
>>>>> opt at gsnShadeHigh = 17 ; stipple
>>>>> opt at gsnShadeFillScaleF = 0.5 ; add extra density
>>>>> opt at gsnShadeFillDotSizeF = 0.002 ; make dots larger
>>>>>
>>>>> plot = gsn_csm_contour_map(wks,r_sst, res) ; create plot
>>>>>
>>>>> plot2 = gsn_csm_contour(wks,p, res2)
>>>>> plot2 = gsn_contour_shade(plot2,0.01,0.05,opt)
>>>>>
>>>>> overlay (plot, plot2)
>>>>>
>>>>> draw(plot)
>>>>> frame(wks)
>>>>>
>>>>> Please find the full code in the attached file.
>>>>>
>>>>> Any suggestions would be appreciated.
>>>>>
>>>>> --
>>>>>
>>>>> *Regards,*
>>>>>
>>>>> Dr. Jalal
>>>>>
>>>>> *Postdoctoral Researcher,* Typhoon Research Center, Jeju National
>>>>> University, South Korea
>>>>>
>>>>> *PhD* in Atmospheric Physics and Atmospheric Environment, NUIST, China
>>>>>
>>>>> *M.Sc.* in Applied Meteorology, NUIST, China
>>>>>
>>>>> *B.Sc.* in Disaster Management, PSTU, Bangladesh
>>>>>
>>>>> *Founder and Director* of Research Society
>>>>>
>>>>> *Website*: https://researchsociety20.org/founder-and-director/
>>>>>
>>>>> *E-mails*: founder-and-director at researchsociety20.org
>>>>>
>>>>> jalal at jejunu.ac.kr
>>>>>
>>>>> 20205103002 at nuist.edu.cn
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk at mailman.ucar.edu
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>
>>>>
>>>> --
>>>> Adam Phillips
>>>> Associate Scientist IV, Climate Analysis Section
>>>> Climate and Global Dynamics Laboratory
>>>> National Center for Atmospheric Research
>>>> www.cgd.ucar.edu/staff/asphilli/
>>>>
>>>> <http://www.cgd.ucar.edu/staff/asphilli>
>>>>
>>>
>>>
>>> --
>>>
>>> *Regards,*
>>>
>>> Dr. Jalal
>>>
>>> *Postdoctoral Researcher,* Typhoon Research Center, Jeju National
>>> University, South Korea
>>>
>>> *PhD* in Atmospheric Physics and Atmospheric Environment, NUIST, China
>>>
>>> *M.Sc.* in Applied Meteorology, NUIST, China
>>>
>>> *B.Sc.* in Disaster Management, PSTU, Bangladesh
>>>
>>> *Founder and Director* of Research Society
>>>
>>> *Website*: https://researchsociety20.org/founder-and-director/
>>>
>>> *E-mails*: founder-and-director at researchsociety20.org
>>>
>>> jalal at jejunu.ac.kr
>>>
>>> 20205103002 at nuist.edu.cn
>>>
>>
>>
>> --
>> Adam Phillips
>> Associate Scientist IV, Climate Analysis Section
>> Climate and Global Dynamics Laboratory
>> National Center for Atmospheric Research
>> www.cgd.ucar.edu/staff/asphilli/
>>
>> <http://www.cgd.ucar.edu/staff/asphilli>
>>
>
>
> --
>
> *Regards,*
>
> Dr. Jalal
>
> *Postdoctoral Researcher,* Typhoon Research Center, Jeju National
> University, South Korea
>
> *PhD* in Atmospheric Physics and Atmospheric Environment, NUIST, China
>
> *M.Sc.* in Applied Meteorology, NUIST, China
>
> *B.Sc.* in Disaster Management, PSTU, Bangladesh
>
> *Founder and Director* of Research Society
>
> *Website*: https://researchsociety20.org/founder-and-director/
>
> *E-mails*: founder-and-director at researchsociety20.org
>
> jalal at jejunu.ac.kr
>
> 20205103002 at nuist.edu.cn
>
--
*Regards,*
Dr. Jalal
*Postdoctoral Researcher,* Typhoon Research Center, Jeju National
University, South Korea
*PhD* in Atmospheric Physics and Atmospheric Environment, NUIST, China
*M.Sc.* in Applied Meteorology, NUIST, China
*B.Sc.* in Disaster Management, PSTU, Bangladesh
*Founder and Director* of Research Society
*Website*: https://researchsociety20.org/founder-and-director/
*E-mails*: founder-and-director at researchsociety20.org
jalal at jejunu.ac.kr
20205103002 at nuist.edu.cn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20240119/886f4405/attachment.htm>
More information about the ncl-talk
mailing list