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Re: [ferret_users] how to convert Gregorian calendar to Julian



Dear Dr Ryo

I tried using ferret simple commands to convert gregorian calendar to Julian calendar

ex as follows
use rlds-jra.nc
 name     title                             I         J         K         L         M         N
 RLDS     Surface Downwelling Longwave Ra  1:640     1:320     ...       1:2920    ...       ...
DEFINE AXIS/CALENDAR=JULIAN/T="1-JAN-2018":"31-DEC-2018":03/UNITS=hours tmodel
let rld=rlds[GT=tmodel@lin]
set mem/siz=6000
save/clobber/file=test1_lin.nc rld
This command worked, but after conversion from gregorian calendar to Julian the the file contains 2913 time steps instead of 2920
test1_lin.nc.
 name     title                             I         J         K         L         M         N
 RLD      RLDS[GT=TMODEL@LIN]              1:640     1:320     ...       1:2913

still I am not able to solve after going through the mail archives

Requesting for help

Regards
Kalyani



On Thu, Jan 20, 2022 at 12:56 PM Ryo Furue <furue@xxxxxxxxxx> wrote:
Dear Kalyani,

I want to convert 3hourly JRA data from gregorian calendar to Julian calendar, I tried to convert using ferret but I am not successful, kindly to help me with one example for conversion

Maybe you'll find some information by searching the Ferret email list archive

https://ferret.pmel.noaa.gov/Ferret/email-users-group

with a keyword "Julian" or "Julian calendar".

If you don't find a solution there, please ask here, but you will need to show us what you have tried so far.

Regards,

Ryo

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