[ferret_users] Subsample in time

[Ge Peng <gpeng@xxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

I have a weekly sst data set that I would like to subsample for a given
yr1-yr2 range without re-griding.  The description of time in the data is
given at the end of this message.

Is there a simple way to define a region for time like defining x or y
region, e.g.: set region/x=120W:160W/y=20S:20N?

If not, I would like to get help in determining day and month for the
first record in the dataset for yr1 and the last record for yr2.

Thanks,

--- Peng


--------------
        double time(time) ;
                time:units = "days since 1800-1-1 00:00:00" ;
                time:long_name = "Time" ;
                time:actual_range = 69395., 76514. ;
                time:delta_t = "0000-00-07 00:00:00" ;
                time:avg_period = "0000-00-07 00:00:00" ;
                time:standard_name = "time" ;
                time:axis = "t" ;
        double time_bnds(time, nbnds) ;
                time_bnds:long_name = "Time Boundaries" ;