Dear Phil,
a programmer has usually to decide if he accepts 'minor' problems with
the input or not. A program-user usually selects the program which
accepts most input. So a CF-processing program not accepting a dataset
without datum won't get very popular. Of course, a program allowing the
Jon,
just to make you think twice:
How will ncWMS display data without datum? Using netcdf-java's default?
I think 1) and 2) are both valid and I propose a something like:
All geo-data must come with the best datum information. Missing
ellipsoid-information will be interpreted as 3671km
Dear all
I agree with Balaji about this:
It is perfectly possible to configure a GCM out of components with
inconsistent datums.
...
I still feel my principal objection to specifying the datum is the
implication of precision that does not exist.
This kind of argument may apply more to models,
Gregory
Sent: 04 August 2011 08:23
To: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] the need to store lat/lon coordinates in a
CF-compliant netCDF file
Dear all
I agree with Balaji about this:
It is perfectly possible to configure a GCM out of components with
inconsistent datums
wishes,
Jon
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Jonathan Gregory
Sent: 04 August 2011 08:23
To: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] the need to store lat/lon coordinates in a
CF-compliant netCDF
On 8/3/2011 8:19 AM, Jon Blower wrote:
Hi all,
I've been following this thread with great interest. For me it boils down to
this question:
- Is the datum always known by the data provider?
If the answer is yes then I see no reason to omit the datum (and plenty of
reasons to include it).
Correction to the datum/ellipsoid explanation below.
The NAD83 datum does use the GRS80 ellipsoid. The NAD27 datum uses the Clarke
1866 ellipsoid. Woops!
Dave
On Aug 3, 2011, at 9:07 AM, David Blodgett wrote:
Dear Phil,
I would have thought that if a particular piece of
data analysis is
-Original Message-
From: Bentley, Philip [mailto:philip.bent...@metoffice.gov.uk]
Sent: 03 August 2011 16:18
To: Jon Blower; cf-metadata@cgd.ucar.edu
Subject: RE: [CF-metadata] the need to store lat/lon coordinates in a
CF-compliant netCDF file
Hi Jon,
I've been following this thread
Hi,
- Original Message -
From: Bentley, Philip philip.bent...@metoffice.gov.uk
Date: Wednesday, August 3, 2011 11:17 am
Subject: Re: [CF-metadata] the need to store lat/lon coordinates in a
CF-compliant netCDF file
Hi Jon,
I've been following this thread with great interest
