[ncl-talk] Do not show significance level in a correlation map
Md. Jalal Uddin
dmjalal90 at gmail.com
Thu Jan 25 19:39:14 MST 2024
Thank you, sir. I am using NCL v6.6.2 in Ubuntu (Windows Subsystem for
Linux).
On Fri, 26 Jan 2024 at 01:38, Adam Phillips <asphilli at ucar.edu> wrote:
> Hi Jalal,
> The error messages are happening as your SST array has missing data over
> land, so there are grid points that are completely missing. In this case
> the error messages can be ignored. With regards to the stippling: When I
> run the exact script you sent, I do get stippling in numerous areas. I
> altered the gsnShadeFillScaleF resource to .45 to make it more apparent,
> and outlined the areas that are significant in the attached plot.
>
> If when you run the script adam_sst_corr.ncl you are not getting any
> stippling in the areas I outlined, I am puzzled. I am running NCL v6.6.2
> which is the latest version of NCL. What version are you running?
> Best,
> Adam
>
>
> On Wed, Jan 24, 2024 at 6:32 PM Md. Jalal Uddin <dmjalal90 at gmail.com>
> wrote:
>
>> Hi Sir,
>>
>> I have now used the same data and code that you provided. However, the
>> output does not show the significant shaded area (see attached figure). And
>> I get the following warnings:
>> *warning*:dim_rmvmean_n: 21375 rightmost sections of the input array
>> contained all missing values
>> *warning*:escorc: Non-fatal conditions encountered in series or xstd
>> equals zero.
>> Possibly, all values of a series are constant.
>> *warning*:escorc: Most likely, one or more series consisted of all
>> constant values
>>
>> I am waiting for your kind advice.
>>
>> On Thu, 25 Jan 2024 at 02:13, Adam Phillips <asphilli at ucar.edu> wrote:
>>
>>> Hi Jalal,
>>> I am guessing the reason why my code didn't work with the NOAA/PSL data
>>> is because that data's time coordinate variable did not match that of the
>>> HadISST dataset. (In the script I sent you I used coordinate subscripting
>>> of the time dimension to select the time needed.) Also, the NOAA/PSL SST
>>> dataset you pointed me to only runs from 1981-2012, and your script was set
>>> to analyze years 1980-2021.
>>>
>>> I will write to you offline with how to download the HadISST data file.
>>> Best,
>>> Adam
>>>
>>>
>>>
>>> On Wed, Jan 24, 2024 at 1:53 AM Md. Jalal Uddin <dmjalal90 at gmail.com>
>>> wrote:
>>>
>>>> Dear Sir,
>>>>
>>>> Could I have this dataset hadisst.187001-202212.nc?
>>>>
>>>> On Fri, 19 Jan 2024 at 19:42, Md. Jalal Uddin <dmjalal90 at gmail.com>
>>>> wrote:
>>>>
>>>>> 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
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> *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
>>
>
>
> --
> 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
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