[ferret_users] [ferret] Calculating monthly mean from NOLEAP daily mean

[Jian Ma <jianma@xxxxxxxxxx>]

Hi All,

I am using the function days1900 to calculate monthly mean from NOLEAP
daily mean. There is an error in time axis definition. Days1900 are
giving Julian days from 1900. If I use the following definition, the
time is wrong, due to different day count between the calendars.

DEFINE AXIS/UNITS=days/T0=1-jan-1900/EDGES/cal=noleap truemonth =
DAYS1900(year,month,1)

Anyone has a good method to calculate NOLEAP days from 1900? Or do I
have to do a NOLEAP -> Julian transformation

Many thanks,
Tony