CDO

Dear all,

following the help of 'timmin' command:
"The date information of a timestep in ofile is the date of the last contributing timestep in ifile."

However, after using 'timmin' on some dataset files containing fields of a single parameter for some dates,
I observed that the date written in ofile is not corresponding to the last contributing timestep in ifile but to the first one!.

For example, given an input file 'testfile':

@
$ cdo info testfile
-1 : Date Time Level Gridsize Miss : Minimum Mean Maximum : Parameter ID
1 : 1995-05-05 00:00:00 10 105 0 : -1.7078 0.62999 4.0422 : 33.1
2 : 1995-05-06 00:00:00 10 105 0 : -3.9102 -0.39919 2.3398 : 33.1
3 : 1995-05-07 00:00:00 10 105 0 : -4.6348 -1.2391 0.91207 : 33.1

$ cdo timmin testfile min

$ cdo info min
-1 : Date Time Level Gridsize Miss : Minimum Mean Maximum : Parameter ID
1 : 1995-05-05 00:00:00 10 105 0 : -4.6348 -1.3567 0.55269 : 33.1

@

This behavior is observed only in the oldest dataset files (those older than 1995).
The fact that date in min file is the first instead the last one has consequences on other statistics commands as timpctl, which reports
an error related to verification dates.

Any suggestions would be appreciated.