Faster reading of time series from netCDF?

Question

I have some large netCDF files that contain 6 hourly data for the earth at 0.5 degree resolution.

There are 360 latitude points, 720 longitude points, and 1420 time

Answer 1

Not sure if you have considered cdo to extract the point ?

cdo remapnn,lon=x/lat=y in.nc point.nc 

Sometimes CDO runs out of memory, if this happens, you might need to loop over the yearly files, and then cat the separate point files with

cdo mergetime point_${yyyy}.nc point_series.nc