CDO

Dear all,

I have daily netcdf outputs of hourly data from a 10 year simulation, with the following grid: 378 * 148 grid points. I would like to compute the long-term time average of wind speed and wind direction over the complete grid to produce a map. I plan to use CDO for this purpose but I'm don't know how to get this long-term average from the daily files containing hourly data. What would you suggest? I used cdo timavg but apparently we can use it only on one file at a time(wildcard didn't do the trick).

Also, how could I compute the circular lont-term mean for the wind directions? Because I cannot use traditional mean for directional quantities.

I'm also a bit scared about the memory necessary to compute those long-term averages, 10 years of hourly data over a grid of 378*148 grid points seems really huge. What would you suggest to compute efficiently the long term averages?

Many thanks,
Greg