Hi, I obtained some netcdf data from NCEP website (attached here). It contains gridded geopotential heights at 1 level with 9 lats and 13 lons, and 489 time steps (so the dimension is 489 1 9 13). The website could plot the data into contour lines (see attached figure). I wonder whether R has certain functions dedicated to produce similar plot for such weather variables. Thanks!
Linda
<<attachment: geopotentialheight.png>>
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