[ferret_users] time axis of over 9999 yr

To: Ferret Users <ferret_users@xxxxxxxx>
Subject: [ferret_users] time axis of over 9999 yr
From: Marco van Hulten <Marco.Hulten@xxxxxx>
Date: Thu, 26 Sep 2019 16:54:26 +0200
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Hi—
 
Defining this time axis works for plotting 1000 decadal averages (from a
netCDF file with badly defined time axis):
 
define axis/t="1-jul-0000":"1-jul-9999":1/units="years"/npoints=1000/cal=noleap/edges tdecadal
 
But I need a time axis that spans over more than 9999 yr:
 
define axis/t="1-jul-0000":"1-jul-15000":1/units="years"/npoints=1500/cal=noleap/edges tdecadal
**ERROR: command syntax: 1-jul-15000 is not valid in this calendar
 
The noleap and (extended) gregorian calendars appear to be limited to
have four digits for the years.  Is there a calendar that can do up to
six digits, or a way to define it?
 
—Marco

Follow-Ups:
- Re: [ferret_users] time axis of over 9999 yr
  - From: James Orr

References:
- [ferret_users] response to ferret question on decadal time axis
  - From: James Orr
- [ferret_users] Re: decadal time axis
  - From: Marco van Hulten

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