[ncl-talk] query ( CONVERSION ASCII TO NetCDF)
Kunal Bali
kunal.bali9 at gmail.com
Wed Sep 24 05:16:48 MDT 2014
please find the attached file
Thank You
Kunal Bali
Research Scholar
Radio & Atmospheric Science Division
CSIR - National Physical Laboratory
New Delhi - 110012
On Wed, Sep 24, 2014 at 4:22 PM, Karin Meier-Fleischer <
meier-fleischer at dkrz.de> wrote:
> Please provide the script you are using!
>
> Am 24.09.14 12:34, schrieb Kunal Bali:
>
> Dear Karin
>
> Thank You once again. Now its coming properly.
> One more problem i am facing right now is that i am trying to save the
> output result in pdf.
> I am using the commands before END command
> wks_type = "pdf"
> wks_type at wkPaperSize = "A4"
> wks = gsn_open_wks(wks_type,"test2")
>
> These command are generating the pdf file in directory but blank without
> any graphs (0 bytes).
>
> So how is the correct way to save the result in pdf or png format or how
> to use above commands correctly.
>
> Thank You
>
>
>
> Kunal Bali
> Research Scholar
> Radio & Atmospheric Science Division
> CSIR - National Physical Laboratory
> New Delhi - 110012
>
>
>
>
>
>
> On Wed, Sep 24, 2014 at 3:30 PM, Karin Meier-Fleischer <
> meier-fleischer at dkrz.de> wrote:
>
>> Hi Kunal,
>>
>> didn’t you use the isnan_ieee section in the script? You have NaNs in
>> your data and they should be set to _FillValue.
>>
>> if (any(isnan_ieee(data))) then
>> value = 1.e20
>> replace_ieeenan (data, value, 0)
>> data at _FillValue = value
>> end if
>>
>> Again, without your script we could not help properly!
>>
>> Bye,
>> Karin
>>
>> Am 24.09.2014 um 11:40 schrieb Kunal Bali <kunal.bali9 at gmail.com>:
>>
>> Dear NCL users
>>
>> With the help of NCL users Now i am able to convert ASCII to netcdf
>> format. But when i tried to plot this .nc file the contour map is not
>> coming out in proper way.
>>
>> But when i use the original .nc file (without any conversion) then the
>> plot is coming nicely. Here is attached the file with figure and all
>> commands which i am using to plot.
>>
>> Thank You
>>
>> Kunal Bali
>> Research Scholar
>> Radio & Atmospheric Science Division
>> CSIR - National Physical Laboratory
>> New Delhi - 110012
>>
>>
>>
>>
>>
>>
>> On Wed, Sep 24, 2014 at 1:54 PM, Karin Meier-Fleischer <
>> meier-fleischer at dkrz.de> wrote:
>>
>>> Hi Kunal,
>>>
>>> you read the data into an array called data with nlines=64800 and
>>> ncolumns=3 —> data(nlines,ncolumns)
>>>
>>> The 1st column, all lines: data(:,0)
>>> The 2nd column, all lines: data(:,1)
>>> The 3rd column, all lines: data(:,2)
>>>
>>> nLongitude = 360
>>> Longitude = data(0:nLongitude-1,1) —> read 2nd column, first 360 lines
>>>
>>> Please, take a look at
>>>
>>>
>>> http://www.ncl.ucar.edu/Document/Manuals/Getting_Started/basics.shtml#ArraySubscripting
>>>
>>> Bye,
>>> Karin
>>>
>>> Am 24.09.2014 um 07:10 schrieb Kunal Bali <kunal.bali9 at gmail.com>:
>>>
>>> Dear
>>> *Karin Meier-Fleischer *
>>>
>>> Thank You so much for helping me. Your run your scripts and working
>>> well.
>>> I just want know what is the means of this line > *Longitude = data(*
>>> 0:nLongitude-1
>>>
>>> *,1) *
>>>
>>> *Thank You *
>>>
>>> Kunal Bali
>>> Research Scholar
>>> Radio & Atmospheric Science Division
>>> CSIR - National Physical Laboratory
>>> New Delhi - 110012
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Wed, Sep 24, 2014 at 1:01 AM, Karin Meier-Fleischer <
>>> meier-fleischer at dkrz.de> wrote:
>>>
>>>> Hi Kunal,
>>>>
>>>> one problems occurred while reading the datacaused by the variable
>>>> name TotCH4_A in the
>>>> header line of your data file 14-01.txt. NCL reads the value 4 in the
>>>> name and writes it as first
>>>> value into the data array. After renaming to TotCH_A in 14-01.txt file
>>>> everything works well.
>>>>
>>>> You missed to convert the one dimensional variable TotCH4_A (in your
>>>> NCL script) to a two
>>>> dimensional array. Also as described in the mails before you should
>>>> assign latitude and
>>>> longitude to the named variables of TotCH4_A2D. See the script below.
>>>>
>>>> It is easier to write/save the NCL commands in a text file (e.g.
>>>> script.ncl) and run it
>>>> using ’ncl script.ncl'
>>>>
>>>> Bye, Karin
>>>>
>>>>
>>>> ;-----------------------------------------------------------------------------
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>>>>
>>>> begin
>>>>
>>>> nLatitude = 180
>>>> nLongitude = 360
>>>>
>>>> data = asciiread("14-01.txt",(/nLatitude*nLongitude,3/),"float")
>>>>
>>>> Latitude = data(::nLongitude,0)
>>>> Longitude = data(0:nLongitude-1,1)
>>>> TotCH4_A = data(:,2)
>>>> TotCH4_A2D = onedtond(TotCH4_A,(/nLatitude,nLongitude/))
>>>>
>>>> if (any(isnan_ieee(TotCH4_A2D))) then
>>>> value = 1.e20
>>>> replace_ieeenan (TotCH4_A2D, value, 0)
>>>> TotCH4_A2D at _FillValue = value
>>>> end if
>>>>
>>>> printMinMax(Latitude,0)
>>>> printMinMax(Longitude,0)
>>>> printMinMax(TotCH4_A,0)
>>>>
>>>> ; Assign named dimensions
>>>>
>>>> TotCH4_A2D!0 = "lat"
>>>> TotCH4_A2D!1 = "lon"
>>>>
>>>> ; Assign coordinate variables
>>>>
>>>> TotCH4_A2D&lat = Latitude
>>>> TotCH4_A2D&lon = Longitude
>>>>
>>>> TotCH4_A2D&lat at units = "degrees_north"
>>>> TotCH4_A2D&lon at units = "degrees_east"
>>>>
>>>> printVarSummary(TotCH4_A2D)
>>>>
>>>> ; delete existing netcdf file to create a new one
>>>> system("rm -rf Sample.nc")
>>>> ncdf = addfile("Sample.nc","c")
>>>>
>>>> ; write data to netcdf file
>>>>
>>>> ncdf->TotCH4_A = TotCH4_A2D
>>>>
>>>> ; plot data
>>>>
>>>> wks = gsn_open_wks("x11","test")
>>>> plot = gsn_csm_contour_map(wks,TotCH4_A2D,False)
>>>>
>>>> end
>>>>
>>>>
>>>> ;-----------------------------------------------------------------------------
>>>>
>>>>
>>>>
>>>> Am 23.09.2014 um 19:45 schrieb Kunal Bali <kunal.bali9 at gmail.com>:
>>>>
>>>> Here i attached scripts which i am trying to get the ascii to netcdf
>>>> conversion.
>>>>
>>>> Kunal Bali
>>>> Research Scholar
>>>> Radio & Atmospheric Science Division
>>>> CSIR - National Physical Laboratory
>>>> New Delhi - 110012
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Sep 23, 2014 at 11:03 PM, Karin Meier-Fleischer <
>>>> meier-fleischer at dkrz.de> wrote:
>>>>
>>>>> Hi Kunal,
>>>>>
>>>>> could you provide the data file and your script.
>>>>>
>>>>> Bye,
>>>>> Karin
>>>>>
>>>>>
>>>>> Am 23.09.2014 um 19:05 schrieb Kunal Bali <kunal.bali9 at gmail.com>:
>>>>>
>>>>> Dear NCL users
>>>>>
>>>>> I tried previous mail scripts for converting ASCII to netcdf format ,
>>>>> the file is generating but its without data points.Only variable names
>>>>> generating.
>>>>>
>>>>> Kunal Bali
>>>>> Research Scholar
>>>>> Radio & Atmospheric Science Division
>>>>> CSIR - National Physical Laboratory
>>>>> New Delhi - 110012
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Sep 23, 2014 at 1:28 PM, Karin Meier-Fleischer <
>>>>> meier-fleischer at dkrz.de> wrote:
>>>>>
>>>>>> Hi Kunal,
>>>>>>
>>>>>> the answer was given in an earlier mail:
>>>>>>
>>>>>> 1. read the ASCII data variable, lat and lon
>>>>>> 2. create a output file: netcdf = addfile("
>>>>>> simple.nc","c")
>>>>>> 3. write your data variable to the output file: ncdf->values =
>>>>>> values
>>>>>>
>>>>>>
>>>>>> Please read the 'output to netcdf' examples for more details:
>>>>>> http://ncl.ucar.edu/Applications/o-netcdf.shtml
>>>>>>
>>>>>> Bye,
>>>>>> Karin
>>>>>>
>>>>>> Am 23.09.14 07:04, schrieb Kunal Bali:
>>>>>>
>>>>>> Dear NCL users
>>>>>>
>>>>>> I am still not getting how to do the conversion from ASCII to netcdf
>>>>>> ??
>>>>>>
>>>>>> Kunal Bali
>>>>>> Research Scholar
>>>>>> Radio & Atmospheric Science Division
>>>>>> CSIR - National Physical Laboratory
>>>>>> New Delhi - 110012
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Sep 22, 2014 at 7:35 PM, Yuqiang Zhang <
>>>>>> yuqiangzhang.thu at gmail.com> wrote:
>>>>>>
>>>>>>> Hi Kunal,
>>>>>>>
>>>>>>>
>>>>>>> In line 30, “*ncl 30> TotCH4_A = data(:,2)* “. You variable
>>>>>>> “TotCH4_A” is only assigned one dimension’s value, so you can’t assign two
>>>>>>> dimension through line 33 & 34.
>>>>>>>
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> Yuqiang
>>>>>>>
>>>>>>>
>>>>>>> *From:* ncl-talk-bounces at ucar.edu [mailto:ncl-talk-bounces at ucar.edu]
>>>>>>> *On Behalf Of *Kunal Bali
>>>>>>> *Sent:* Monday, September 22, 2014 8:53 AM
>>>>>>> *To:* Karin Meier-Fleischer
>>>>>>> *Cc:* ncl-talk at ucar.edu
>>>>>>> *Subject:* Re: [ncl-talk] query ( CONVERSION ASCII TO NetCDF)
>>>>>>>
>>>>>>>
>>>>>>> Dear NCL user
>>>>>>>
>>>>>>> I tried this script from NCL but still getting error
>>>>>>>
>>>>>>>
>>>>>>> ncl 28> Longitude = data(:,1)
>>>>>>> ncl 29> Latitude = data(:,0)
>>>>>>> ncl 30> TotCH4_A = data(:,2)
>>>>>>> ncl 31> ncdf = addfile("/home/kunal/simple1.nc","c")
>>>>>>> ncl 32> filedimdef(ncdf,"time",-1,True)
>>>>>>> ncl 33> TotCH4_A!0 = "Latitude"
>>>>>>> ncl 34> TotCH4_A!1 = "Longitude"
>>>>>>>
>>>>>>>
>>>>>>> *fatal:Variable (TotCH4_A) has (1) dimensions can not write to
>>>>>>> dimension (1) fatal:["Execute.c":8565]:Execute: Error occurred at or near
>>>>>>> line 34 *
>>>>>>>
>>>>>>>
>>>>>>> Kunal Bali
>>>>>>>
>>>>>>> Research Scholar
>>>>>>>
>>>>>>> Radio & Atmospheric Science Division
>>>>>>>
>>>>>>> CSIR - National Physical Laboratory
>>>>>>>
>>>>>>> New Delhi - 110012
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Sep 22, 2014 at 5:32 PM, Karin Meier-Fleischer <
>>>>>>> meier-fleischer at dkrz.de> wrote:
>>>>>>>
>>>>>>> Hi Kunal,
>>>>>>>
>>>>>>>
>>>>>>> Please, take a look at the 'output netcdf' examples page, method_1
>>>>>>>
>>>>>>>
>>>>>>> http://ncl.ucar.edu/Applications/method_1.shtml
>>>>>>>
>>>>>>> Try this:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> lat = data(:,0)
>>>>>>>
>>>>>>> lat = data(:,1)
>>>>>>>
>>>>>>> values= data(:,2)
>>>>>>>
>>>>>>> system
>>>>>>> <http://ncl.ucar.edu/Document/Functions/Built-in/system.shtml>("/bin/rm
>>>>>>> -f simple.nc") ; remove any pre-existing file
>>>>>>>
>>>>>>> ncdf = addfile("simple.nc" ,"c") ; output netCDF file
>>>>>>>
>>>>>>> filedimdef <http://ncl.ucar.edu/Document/Functions/Built-in/filedimdef.shtml>(ncdf,"time",-1,True) ; recommended
>>>>>>>
>>>>>>> values!0 = "lat"
>>>>>>>
>>>>>>> values!1 = "lon"
>>>>>>>
>>>>>>> values&lat = lat
>>>>>>>
>>>>>>> values&lon = lon
>>>>>>>
>>>>>>> ncdf->values = values
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Bye, Karin
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Am 22.09.2014 um 11:40 schrieb Kunal Bali <kunal.bali9 at gmail.com>:
>>>>>>>
>>>>>>> Dear NCL users
>>>>>>>
>>>>>>> I want to convert ASCII to .nc file format. Could any one please
>>>>>>> provides me the link for this query or give any detail about this ??
>>>>>>>
>>>>>>> I have data in 3 column ( Latitude Longitude Values)
>>>>>>>
>>>>>>> More Detail
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> *Variable: data Type: float Total Size: 777600 bytes
>>>>>>> 194400 values Number of Dimensions: 2 Dimensions and sizes: [64800] x
>>>>>>> [3] Coordinates: Number Of Attributes: 1 _FillValue : 9.96921e+36 *
>>>>>>>
>>>>>>> *So is there any ways to convert ASCII to netcdf format ???*
>>>>>>>
>>>>>>> *Thank You*
>>>>>>>
>>>>>>>
>>>>>>> Kunal Bali
>>>>>>>
>>>>>>> Research Scholar
>>>>>>>
>>>>>>> Radio & Atmospheric Science Division
>>>>>>>
>>>>>>> CSIR - National Physical Laboratory
>>>>>>>
>>>>>>> New Delhi - 110012
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> ncl-talk mailing list
>>>>>>> List instructions, subscriber options, unsubscribe:
>>>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
>>>>>> _______________________________________________
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>>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>> ____________________________________
>>>>> Dipl. Geophys. Karin Meier-Fleischer
>>>>> Visualisierung
>>>>> Abteilung Anwendungen
>>>>>
>>>>> Deutsches Klimarechenzentrum GmbH (DKRZ)
>>>>> Bundesstrasse 45a * D-20146 Hamburg
>>>>> Germany
>>>>>
>>>>> Phone: +49 (0)40 460094 126
>>>>> Fax: +49 (0)40 460094 270 <%2B49%20%280%2940%20460094%20270>
>>>>> E-Mail: meier-fleischer at dkrz.de
>>>>> URL: http://www.dkrz.de/
>>>>>
>>>>> Geschäftsführer: Prof. Dr. Thomas Ludwig
>>>>> Sitz der Gesellschaft: Hamburg
>>>>> Amtsgericht Hamburg HRB 39784
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>> <14-01.txt><ASCII to netcdf.ncl>
>>>> _______________________________________________
>>>> ncl-talk mailing list
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>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>> _______________________________________________
>>> ncl-talk mailing list
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>>>
>>>
>>>
>> <contour_error.png>_______________________________________________
>> ncl-talk mailing list
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>>
>> ____________________________________
>> Dipl. Geophys. Karin Meier-Fleischer
>> Visualisierung
>> Abteilung Anwendungen
>>
>> Deutsches Klimarechenzentrum GmbH (DKRZ)
>> Bundesstrasse 45a * D-20146 Hamburg
>> Germany
>>
>> Phone: +49 (0)40 460094 126 <%2B49%20%280%2940%20460094%20126>
>> Fax: +49 (0)40 460094 270 <%2B49%20%280%2940%20460094%20270>
>> E-Mail: meier-fleischer at dkrz.de
>> URL: http://www.dkrz.de/
>>
>> Geschäftsführer: Prof. Dr. Thomas Ludwig
>> Sitz der Gesellschaft: Hamburg
>> Amtsgericht Hamburg HRB 39784
>>
>>
>>
>>
>>
>
>
> _______________________________________________
> ncl-talk mailing list
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>
>
> --
> Dipl. Geophys. Karin Meier-Fleischer
> Visualization
> Application Support
>
> Deutsches Klimarechenzentrum GmbH (DKRZ)
> Bundesstrasse 45a - D20146 Hamburg - Germany
>
> Phone: +49 (0)40 460094 126
> Fax: +49 (0)40 460094 270
> E-Mail: meier-fleischer at dkrz.de
> URL: www.dkrz.de
>
> Geschäftsführer: Prof. Dr. Thomas Ludwig
> Sitz der Gesellschaft: Hamburg
> Amtsgericht Hamburg HRB 39784
>
>
> _______________________________________________
> ncl-talk mailing list
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
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