Hi, I have this huge ( ~30GB) .nc file (NC_FORMAT_NETCDF4_CLASSIC)) for the whole country 141.00 to 52.00 W, 41.00 to 84.00 N". I am trying to clip this big dataset for a small region specific domain (120.00 to 130.00 W, 50.00 to 60.00 N). I am trying to do using netCDF4 r package but could not figure out how to do so. Kindly please suggest me how should i proceed. Thank you, [[alternative HTML version deleted]]
Roy Mendelssohn
2014-Aug-27 00:52 UTC
[R] Clip smaller domain from large domain netCDF file
Using the ncdf4 library requires some knowledge of netcdf files and how they
work. However, if you can provide the following information I may be able to
provide some pointers. I am assuming your file is named "myFile.nc".
Where you see that replace with the actual name.
library(ncdf4)
myFile<-nc_open('myFile.nc')
str(myFile)
The output of the last command will show what is basically a dump of metadata
content of the file, showing its structure. From the bounds I assume this is
a Canadian dataset?
-Roy
On Aug 26, 2014, at 4:46 PM, Aseem Sharma <nature.aseem at gmail.com>
wrote:
> Hi,
> I have this huge ( ~30GB) .nc file (NC_FORMAT_NETCDF4_CLASSIC)) for the
> whole country 141.00 to 52.00 W, 41.00 to 84.00 N".
> I am trying to clip this big dataset for a small region specific domain
> (120.00 to 130.00 W, 50.00 to 60.00 N).
> I am trying to do using netCDF4 r package but could not figure out how to
> do so.
> Kindly please suggest me how should i proceed.
>
>
> Thank you,
>
> [[alternative HTML version deleted]]
>
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Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
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