Dear Ansley, Patrick,
Ferret's graphics lets you view plots of variables on different time
axes together using /HLIM or /VLIM. I think this is causing some
confusion. To save them to a single dataset, appending them, you
would need to put them onto a common time axis, and it is up to the
user to make sure that the time origin and axis units match.
I've run into this issue as well. Does Ferret deal correctly with
regridding to a common time axis? i.e.
dataset 1: time axis starts at 01-01-1970, hourly data
dataset 2: time axis starts at 01-01-1990, hourly data
define new axis my_t starting at 01-01-1900, hourly
let var3 = var1[d=1,gt=my_t] + var2[d=2, gt=my_t]
save (/append) /file=test.nc var3
Will that do what I expect/want ? If so, it's a perfectly acceptable
workaround, but it would be very nice indeed if ferret issues a
warning or an error when you're incorrectly combining time axes with
append.
Kind regards,
Hein