Dear Olivier,
Thanks for your comments.
Lauret Olivier wrote on 10/18/10 10:51 AM:
That sounds interesting because you are suggesting to introduce
different quantities whether they are collocated or not.
No, I proposed standard names only for data obtained by calculating mean
or standard deviation from subsets of original instrument observations
over collocation targets/scenes.
· Are you sure you need a standard name such as "time_label_iso8601"?
I mean: isn't it possible to use "time" standard name instead? (And
put somewhere that it is ISO 8601 compliant information, like in
'long name' attribute)
It is possible and I can think of several alternative ways of doing that
('comments' variable attribute?). I am not sure though if it would be
appropriate to use the standard name associated with numerical time data.
· In principle, you could consider that a collocated quantity is the
same geophysical quantity that a non collocated one.
It is, I am not proposing to change that.
But it is also true that identifying collocated quantities with CF
attributes could ease some processes, when comparing temporal series.
If we suppose that, how would you identify two quantities like eg
"toa_outgoing_spectral_radiance_mean_within_collocation_target" that
are defined by two different collocation targets?
By having variables with collocation targets' latitude and longitude.
There are two general cases: fixed ground targets, and opportunistic
targets whenever collocation criteria is satisfied.
-Aleksandar
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