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I have 3 .nc files that were given to me without specifying which projection was used for the (lat, lon) coordinate pairs. Is there an attribute or a way of figuring it out given the latitudes and longitudes that are written in the file?

It's especially important to me to know since I need to obtain the closest grid points to a list of locations that are in epsg:4326 and compare the data stored in each.

I am using Python3 and GeoPandas to store the geographical information and plot.

I am new working with .ncand geographical data but it is my understanding different crs might change the (lat, lon) pair, so they cant be compared if they are not projected onto the same coordinate system.

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  • Are you able to share the netcdf file? It can vary depending on how it was created.
    – snowman2
    Commented Feb 22, 2020 at 15:47
  • They were created with the chimere software, haven't been able to figure out if chimere uses a specific crs or if its given by the user. Don't feel comfortable sharing it since it's from my superior and not mine.
    – M.O.
    Commented Feb 22, 2020 at 15:53
  • If it can't be figured out without sharing the .nc I will understand and will delete the question
    – M.O.
    Commented Feb 22, 2020 at 15:54
  • This may help: gis.stackexchange.com/a/350006/144357. But you might have something different, so hard to tell without the file.
    – snowman2
    Commented Feb 22, 2020 at 16:32

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