[ncl-talk] mask problem

[Dennis Shea]

[1] You could look on the WWW for a *file* containing a TRMM 0.25 degree
land-sea mask. Did you try?

[2] You could create your own mask. Did you look at the following?
            *http://www.ncl.ucar.edu/Applications/mask.shtml*
<http://www.ncl.ucar.edu/Applications/mask.shtml>

    [a] Use shapefiles: Examples 12 & 13
    [b] The attached script uses NCL builtin *1-deg* landsea mask. 3B42 is
*0.25-deg.*
*         [ *See* mask_5.ncl ]. *It produces that attached netCDF file and
a sample plot.

Do not respond to me. ncl-talk only

On Sun, Nov 4, 2018 at 5:01 AM Md. Jalal Uddin <dmjalal90 at gmail.com> wrote:

> I understood your answer; however, I want to know more about it. Which
> data is only applicable for masking function in NCL? I am using TRMM 3B42
> data to mask precipitation over land. What should I do for TRMM data?
>
> On Sun, Nov 4, 2018 at 5:45 PM Karin Meier-Fleischer <
> meier-fleischer at dkrz.de> wrote:
>
>> Hi Jalal,
>>
>> NCL told you that the variable ORO is not in your file, so take a look at
>> your file and see what it contains. You can use ncl_filedump to do it.
>>
>> -Karin
>>
>>
>> Am 04.11.2018 um 05:24 schrieb Md. Jalal Uddin <dmjalal90 at gmail.com>:
>>
>> Hi all,
>>
>>
>> I am getting the following error message when I tried to mask over land.
>>
>>
>> fatal:["Execute.c":6394]:variable (ORO) is not in file (f)
>>
>>
>> ;;code
>>
>> f= addfile("yearsum2000.nc","r")
>>  pre = f->pre
>>  pre_reorder = pre(time|:,latitude|:,longitude|:)
>> ;printVarSummary(pre_reorder)
>>
>>
>> oro = f->ORO(0,:,:)   ;oro: orography data array (lat,lon). ; assumes
>> that lat and lon are attached to oro as coordinates,. ; and oro has values
>> ocean: 0, land: 1
>>
>>
>> ;;printVarSummary(pre)
>>
>> Variable: pre
>> Type: double
>> Total Size: 4608000 bytes
>>             576000 values
>> Number of Dimensions: 3
>> Dimensions and sizes:   [time | 1] x [longitude | 1440] x [latitude | 400]
>> Coordinates:
>>             time: [911.75..911.75]
>>             longitude: [-179.875..179.875]
>>             latitude: [-49.875..49.875]
>> Number Of Attributes: 4
>>   long_name :     precipitation
>>   units :   mm
>>   _FillValue :    -nan
>>   missing_value : -nan
>>
>>
>> How can I solve this problem?
>>
>>
>> Best regards,
>>
>> Jalal
>> --
>> *Md. Jalal Uddin*
>> MSc in Applied Meteorology (English Language)
>> Nanjing University of Information, Science and Technology, China
>> B.Sc. in Disaster Management (Hons.)
>> Patuakhali Science and Technology University, Bangladesh.
>> Cell: +8613260859092, +8801792052662
>> Web: www.dmjalal90.weebly.com
>> Facebook: jalal.hossen.39
>> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
>> Twitter: dmjalal90
>> Skype: dmjalal90
>>
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>>
>
> --
> *Md. Jalal Uddin*
> MSc in Applied Meteorology (English Language)
> Nanjing University of Information, Science and Technology, China
> B.Sc. in Disaster Management (Hons.)
> Patuakhali Science and Technology University, Bangladesh.
> Cell: +8613260859092, +8801792052662
> Web: www.dmjalal90.weebly.com
> Facebook: jalal.hossen.39
> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
> Twitter: dmjalal90
> Skype: dmjalal90
> _______________________________________________
> ncl-talk mailing list
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