Hi Upendra,
It comes down to the significance of the difference between parameters
according to tha application for which they are used. There ae two temperature
scales - IPTS68 and ITS90. However, pragamatically for the period of time when
IPTS68 was used the measurement uncertaintyfor sea t
Hi Jonathan & John,
Thank you for the replies. I understand now. I see that there are
complex semantic issues involved here. But the semantic issues should
not become operational bottlenecks. I work at a data center where I do
come across datasets where ambiguities about what the data repres
On 12/9/2011 11:37 AM, Jonathan Gregory wrote:
Dear John
I prefer the idea that Thomas has put forward of an umbrella, rather than
containing the vector/tensor components in one data variable, because
* I really don't like the idea of units being mixed within a data variable.
I think things wit
Dear John
I prefer the idea that Thomas has put forward of an umbrella, rather than
containing the vector/tensor components in one data variable, because
* I really don't like the idea of units being mixed within a data variable.
I think things with different units must certainly be different qua
Well, this gets into subtleties of meaning and 'stuff', but here's my take:
If I have two values labeled sea_water_temperature, I can assume they are the
same fundamental quality, and even if provided on different scales, those
values can be converted to the same scale, using the information in
Dear Upendra
> Coming to the problem of coming up with a standard name for pH
> accurately, I can see the issue here. Though I am still not sure why
> not all five standard names were included. If there is an analogy
> between sea water pH and sea water temperature, as mentioned in one
> of the em
Sea_surface_salinity is missing from your list; I don't have time
to edit the doc, sorry. This should really have been a trac ticket -
that would have eliminated the need for the word document.
Cheers - Nan
On 12/7/11 7:34 PM, Durack, Paul J. wrote:
Thanks for all this work Alison..
For cla
hi:
I think I would also advocate adding another standard attribute,
something like "units_label" which would be a label for the units in a
plot, not necessarily udunit compliant.
eg:
var : units = "";
var : units_label = "milligrams per gram of dry sediment";
john
On 12/9/2011 2:09 AM,
Thanks all for your replies. That was very helpful.
Upendra
On 12/9/2011 4:09 AM, Lowry, Roy K. wrote:
Hi Upendra,
The Forel-Ule is another example where parameter semantics have been off-loaded
in the units of measure, such as 'milligrams per gram of dry sediment'. I have
been working to e
Thank you Jonathan and John for your emails.
I went through your earlier emails. One of the things that occurred to
me is that these discussions that you had are as much a part of the
standard as the names themselves. I think it would be great if there is
better "connection" between your ema
Hi Upendra,
The Forel-Ule is another example where parameter semantics have been off-loaded
in the units of measure, such as 'milligrams per gram of dry sediment'. I have
been working to eliminate this by moving the semantics into the parameter
description to leave a UDUNITS-compatible UoM.
I
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