Re: [ferret_users] time axis error

On 8 April 2010 00:28, David Wang <dwang@xxxxxxxxxxxxxxxxx> wrote:

Since the time axes of your datasets are degenerate, alternatively you can remove the time axes before subtraction by using

fill INTRA_...[d=2,l=1:1@max] - INTRA_...[d=1,l=1:1@max]

David

jean oliveira wrote:

A quick answer. Try
yes? fill INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE[d=2]-INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE[d=1,gt=INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE]
Jean Felix

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Date: Wed, 7 Apr 2010 23:01:32 +0200
From: izidinep@xxxxxxxxx
Subject: [ferret_users] time axis error
To: ferret_users@xxxxxxxx

Dear ferrets users
Iam trying to do the difference between two variables and I am having the following error.
How can I solve this?

currently SET data sets:
1> ./eca_etr.moz.daily.1981_1999.echama2.nc <http://eca_etr.moz.daily.1981_1999.echama2.nc/>

name title I J K L
INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE
Difference between the absolute 1:52 1:87 1:1 1:1
2> ./eca_etr.moz.daily.2031_2049.echama2.nc <http://eca_etr.moz.daily.2031_2049.echama2.nc/> (default)

name title I J K L
INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE
Difference between the absolute 1:52 1:87 1:1 1:1
yes? fill INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE[d=2]-INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE[d=1]
*** NOTE: Ambiguous coordinates on T axis: INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE[D=2]-INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE[D=1]
**ERROR: illegal limits: INTRA_PERIOD_EXTREME_TEMPERATURE_RANGE does not exist at T=02-MAR-1999 12:00
Axis extremes are T=02-MAR-1999 12:00

Any help is strongly appreciated
--
I.P.
:-)

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--
Daiwei Wang
Department of Earth and Environmental Sciences and
Lamont-Doherty Earth Observatory
Columbia University