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Re: [ferret_users] finding a climatology from 360 day calendar.



Hi Jaclyn,
You can define your own climatological axis using the 360 day calendar. Instead of using the climatological_axes data set,


  yes? ! Define a variable listing the day of the fifteenth of each month
  yes? let cal_days = 15 + 30*(k-1)  
  yes? define axis/t/modulo/calendar=360day/t0=1-jan-0000 \
         
month_reg_360 = cal_days[k=1:12]

  yes? ! Now you can regrid to the 360-day climatological axis.
  yes? let rho_seas = rho_hat[gt=month_reg_360@MOD]


Ansley

William S. Kessler wrote:
Hi Jaci -

See the Users Guide under Calendar => 360_day.

yes? define axis/calendar=360_day/t=15:345:30/unit=day/mod tmodel
! or
yes? define axis/calendar=360_day/t=1:12:1/unit=month tmodel
*** NOTE: /UNIT=MONTHS  ... using 1/12 of 360.00 days

But this will still not label the axis with text months ...

Billy

On Mar 14, 2006, at 7:15 AM, Jaclyn Brown wrote:

I am looking at a Hadcm3 data set which has a 360 day calendar.  When I try to calculate the climatology:



Let rho_seas=rho_hat[gt=month_reg@mod]



I get a message saying error:regridding: only @asn, @lin or @nrst  regridding between calendar types: 360 day, Gregorian.

I have tried to change the time axis but can’t get it to change  calendar type. Is there some trick to doing this?



Thanks,

Jaci



Dr Jaclyn Brown

Postdoctoral Associate

Dept Geology and Geophysics

Yale University



Ph. 203 432 2033



PO Box 208109

New Haven 06520







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