Re: [ferret_users] annual totals from monthly time series

[Andy Jacobson <Andy.Jacobson@xxxxxxxx>]

Hi Ansley,

Thanks, this now works!  To recap, I create a time axis whose edges  
are exactly 01-Jan 00:00 UTC of every year.  This axis is called  
"tannual".  As Ansley states, the points on this axis are unevenly  
spaced.  Then regridding a variable with a monthly time step, called  
in this case "nee", to this axis provides the annual means I'm looking  
for:

let indices = L[L=1:6]
let year = 1999 + indices
define axis/units=days/t0=1-jan-1900/edges tannual = days1900(year,1,1)
list nee[gt=tannual@ave]

Best Regards,

Andy


--
Andy Jacobson
andy.jacobson@xxxxxxxx

NOAA Earth System Research Lab
Global Monitoring Division
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