[R-sig-Geo] Merge dataframe with NetCDF file

Roy Mendelssohn - NOAA Federal roy@mende|@@ohn @end|ng |rom no@@@gov
Sat May 20 01:35:47 CEST 2023


Hi Milu:

One of the best ways to get help is to give some description of what you have tried and what it was that had you stuck.  It looks like you already have the data in a raster brick,  have you Googled "writing RasterBrick to netcdf"?

 I assume nrow is latitude, ncol is longitude,  but what is ncell and nlayers?   I can't match up either of those values with the number of years you show  And what is actual name of the other dimension,  and does it have units?  ls what is the long name of "fs" and what are its units?

Thanks,

-Roy

> On May 19, 2023, at 4:19 PM, Miluji Sb <milujisb using gmail.com> wrote:
> 
> Dear all,
> 
> I am struggling to convert a dataframe with 49 years of data for 259,200
> coordinates. How can I convert this dataset into a NetCDF file with the
> following attributes;
> 
> class      : RasterBrick
> dimensions : 360, 720, 259200, 10  (nrow, ncol, ncell, nlayers)
> resolution : 0.5, 0.5  (x, y)
> extent     : -180, 180, -90, 90  (xmin, xmax, ymin, ymax)
> crs        : +proj=longlat +datum=WGS84 +no_defs
> year ()    : 1971, 1972, ..., 2019
> varname    : fs
> 
> Any help will be highly appreciated.
> 
> Best,
> 
> Milu
> 
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> 
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Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
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