[ferret_users] saving subregions

[peter hoor <hoor@xxxxxxxxxxxxxxxxx>]

Dear Ferreters,

I have a data set consisting of regularly 5hrly spaced data over a whole year 
and want to save data of a subregion (e.g. march). 
When using e.g 
SET REGION/T="1-MAR-1997:00:00":"31-MAR-1997:23:59" 
to select a variable over the desired range, the resulting exported netcdf 
file ends one point after 31-MAR (at 01-APR-1997 :01:00).

My feeling is that the next neighbours of the desired boundaries are used 
instead of the exact limits. 
(e.g. for the upper limit of the example above: 
1-APR 01:00 is closer to 31-MAR-23:59 than the last point in March at 
31-MAR 22:00).

Is there a way to force ferret to use exact subregions without extending the 
limits (I want to keep the original time axis)?

Best,
Peter
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Peter Hoor
Max Planck Institute for Chemistry
D-55020 MAINZ
Germany