Hyperslab through an arbitrary line

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2014-03-19
2014-03-19
  • Emilio Garcia

    Emilio Garcia - 2014-03-19

    Hi,

    I am a sporadic user of nco operators. I have looking at the documentation but I did not find a clear solution (perhaps I'm wrong). I want to extract data (hyperslab) from a nc file along an arbitrary line, so a sequence of (lon,lat) points. When I apply the ncks over a point of "sst" as for example,

    ncks -H -d lon,-14.965 -d lat,40.45 -v sst XXXXX.nc

    does return the closest value to such point (14.965,40.45) in the grid (let's say a 2d grid). I can make a loop over a sequence of points defining the arbitrary line and that's find, but I would like to obtain some interpolated data instead of the closest neighbour.

    May somebody help me how to find a optimal solution !!.

    Thanks in advance
    Emilio

     
  • Charlie Zender

    Charlie Zender - 2014-03-19

    This is a difficult problem in many ways. It is sort of possible with auxiliary coordinates, which you probably are not using. Otherwise, I suggest you see if NCL has a better solution.
    cz

     

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