Re: [netcdfgroup] Modifying NEtcdf file

• To: blanquita_oviedo@xxxxxxxxx
• Subject: Re: [netcdfgroup] Modifying NEtcdf file
• From: "Daniele Romagnoli" <daniele.romagnoli@xxxxxxxxxxxxxxxx>
• Date: Tue, 25 Nov 2008 17:39:20 +0100

Hi,
I dont know which type of change you need to apply on your netcdf files but,
maybe, you could take a look at the NCO (netCDF Operator):
http://nco.sourceforge.net/

It provides a wide set of operator: The arithmetic processor could be
helpful for your needs. (I admit I didn't never used it, therefore I can't
help you more ...)
Some documentation is available here: http://nco.sourceforge.net/nco.pdf

Surely, someone in this mailing list will provide you more helpful tips to
achieve your task.

Regards,
Daniele



On Tue, Nov 25, 2008 at 4:56 PM, Blanquita Oviedo <
blanquita_oviedo@xxxxxxxxx> wrote:

>
>    Hi,
>
>       I am new using netCDF and I don't know anybody in my country,
> Colombia, that is currently working with netCDF files.
>
> In order to make the investigation for my master, I need to modify an a
> extensive netCDF file (105.000K). I need to modify aprox 120.000 lines of
> data, but I don´t know any method to do it.
>
> I try to convert the source netCDF file into text (using ncdump - o),  then
> I modified it and now I have an ASCII file separated by commas and with
> characters in return in each line, as obtained using the command ncdump of
> the original file.
>
> For example:
>
> temp =
> // temp(0,0,0, 0-54)
> 277.4813, 276.4155, 275.3335, 274.2372, 273.4386, 273.0315, 272.6246,
> 272.2128, 271.7205, 271.1262, 270.5313, 269.9269, 269.3189, 268.7285,
> 268.1587, 267.6162, 267.5617, 268.1147, 268.6765, 269.2408, 269.4946,
> 269.3569, 269.1975, 269.0216, 268.8656, 268.7551, 268.6632, 268.5788,
> 269.1266, 270.4707, 271.8028, 273.1227, 273.7098, 273.3803, 273.0515,
> 272.7239, 272.7801, 273.3181, 273.8549, 274.3895, 274.682, 274.6729,
> 274.6642, 274.6566, 274.9037, 275.468, 276.0289, 276.5884, 276.3576,
> 275.124, 273.8793, 272.6223, 271.6534, 271.0549, 270.4564,
> // temp(0,0,1, 0-54)
> 276.8679, 275.8403, 274.7976, 273.7424, 273.0192, 272.7307, 272.4441,
> 272.1526, 271.7513, 271.2129, 270.6729, 270.1262, 269.5375, 268.9077,
> 268.2888, 267.6906, 267.6292, 268.238, 268.859, 269.4889, 269.8028,
> 269.7146, 269.6006, 269.4674, 269.2771, 269.037, 268.8181, 268.608,
> 269.0854, 270.4286, 271.7578, 273.0732, 273.6958, 273.4539, 273.2136,
> 272.9739, 272.9522, 273.2037, 273.4539, 273.7034, 273.8842, 273.9784,
> 274.0724, 274.1676, 274.4979, 275.1201, 275.7378, 276.3535, 276.2311,
> 275.1737, 274.1059, 273.0276, 272.2213, 271.7681, 271.3176,
>
> I have problems to return it to turn to netCDF format because the command
> ncgen does not work to me. I would like to ask you your support in order to
> advance and to obtain a netCDF modified file.
>
> Thanks for the support that you can provide to me.
> Blanca Elvira Oviedo T.
>
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-- 
-------------------------------------------------------
Eng. Daniele Romagnoli
Software Engineer

GeoSolutions S.A.S.
Via Carignoni 51
55041 Camaiore (LU)
Italy

phone: +39 0584983027
fax:     +39 0584983027
mob:   +39 328 0559267


http://www.geo-solutions.it

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• References:
  • [netcdfgroup] Modifying NEtcdf file
    • From: Blanquita Oviedo