Re: [netcdfgroup] How convert csv files to a netcdf file

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdfgroup] How convert csv files to a netcdf file
• From: Gus Correa <gus@xxxxxxxxxxxxxxxxx>
• Date: Tue, 15 Dec 2020 15:29:11 -0500

Hi

This is probably much easier to do using a higher level generic tool such
as NCL,
than writing a file-specific program in C, Fortran, Python, whatever, using
the NetCDF API.

NCL documentation includes examples on how to read CSV files:
https://www.ncl.ucar.edu/Applications/read_csv.shtml
and how to write NetCDF files:
https://www.ncl.ucar.edu/Applications/method_1.shtml
https://www.ncl.ucar.edu/Applications/method_2.shtml

For atmosphere/ocean/climate/weather data there hardly anything better than
NCL:
https://www.ncl.ucar.edu/index.shtml

If you run into problems, their mailing list is active and very helpful:
https://www.ncl.ucar.edu/Support/email_lists.shtml

I hope this helps,
Gus Correa

On Tue, Dec 15, 2020 at 12:58 PM nazaniti6 <nazitkk1375@xxxxxxxxx> wrote:

> Hello,
> I have six CSV files which I have sent in this link
> (
> https://drive.google.com/drive/folders/1GQtyY1mI1YrK8GFP9SEo7dZfFHexKro3?usp=sharing
> ).
> If you open them you will understand that each of these files has 720 rows
> and 360 columns which indicates longitude and latitude respectively. I
> should tell you that the first point of latitude is -89.75, the first point
> of longitude is -179.75, and the resolution of these data is 0.5 degrees. I
> want to convert them to a NetCDF file which has the following properties:
> Dimensions:
> longitude = 720
> latitude = 360
> time = 6
> Variables:
> longitude
> Size: 720x1
> Dimensions: longitude
> Datatype: single
> Attributes:
> long_name = 'longitude'
> units = 'degrees_east'
> latitude
> Size: 360x1
> Dimensions: latitude
> Datatype: single
> Attributes:
> long_name = 'latitude'
> units = 'degrees_north'
> time
> Size: 6x1
> Dimensions: time
> Datatype: single
> Attributes:
> long_name = 'time'
> units = 'days since 1900-1-1'
> calendar = 'gregorian'
> tmp
> Size: 720x360x6
> Dimensions: longitude, latitude,time
> Datatype: single
> Attributes:
> long_name = 'monthly mean temperature'
> units = 'degrees Celsius'
> correlation_decay_distance = 1200
> _FillValue = 9.969209968386869e+36
> missing_value = 9.969209968386869e+36
> Could you please help me?
>
>
>
>
>
> --
> Sent from: http://netcdf-group.1586084.n2.nabble.com/
>
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• Follow-Ups:
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    • From: Dave Allured - NOAA Affiliate
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    • From: Chris Barker

• References:
  • [netcdfgroup] How convert csv files to a netcdf file
    • From: nazaniti6