[MITgcm-devel] cal_addtime

[Patrick Heimbach]

Hi Dimitris,

the speedup fix in cal_addtime contained a bug
(Gianmaria noticed this).
By hardcoding the numbers 365, 366 wrong
day counts are performed when using
TheCalendar='model'
That has a cummulative effect, i.e. each model
year an extra 5 (or 6) days are miscounted.
When using GetMonthsrec, this leads to a shift
by 1 month after 6 model years or to a shift
from summer to winter every 36 model years.
I'm not sure, but hope you're lucky and 
are not using TheCalendar='model'.

Cheers
-Patrick



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Patrick Heimbach   Massachusetts Institute of Technology
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