ventions-expressing-values-quantities
>.
END RANT
Thanks for letting me get this off my chest. :-)
Regards,
Steve Emmerson
On Mon, Feb 27, 2017 at 2:21 PM, Allen Jordan - NOAA Affiliate <
allen.jor...@noaa.gov> wrote:
> I would like to add two standard names for the NOAA GMD
On Thu, Sep 22, 2016 at 9:45 AM, Chris Barker <chris.bar...@noaa.gov> wrote:
> I think UDUnits does not use a T but maybe it will accept it.
>
UDUNITS accepts the "T" and can print it.
Regards,
Steve Emmerson
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Just FYI, the UDUNITS-2 package accepts ISO 8601-compliant timestamps like
the following:
2016-01-01T05:04:03-0600
2016-01-01T05:04:03Z
Regards,
Steve Emmerson
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"Mass fraction" is a well-defined term and, yes, "ppb" isn't in the sense
that it doesn't specify what a "part" is.
For names of these types of quantities, I highly recommend section 8.6.2 of
<http://www.nist.gov/pml/pubs/sp811/sec08.cfm>.
Regards,
Steve Emm
by UDUNITS) then all would be well.
Regards,
Steve Emmerson
On Thu, Jan 8, 2015 at 6:34 AM, Jonathan Gregory j.m.greg...@reading.ac.uk
wrote:
Dear Maarten and Steve
I think you meant to say that if a physical quantity has a different
dimensionality (not unit), then we have to give it a different
.,
converting between altitude and pressure). Such a package would be easily
capable of handling Maarten's conversion.
Regards,
Steve Emmerson
On Wed, Jan 7, 2015 at 8:50 AM, Jonathan Gregory j.m.greg...@reading.ac.uk
wrote:
Dear Maarten
A mole is also a udunit, so mol m-3 and m-3 are different
and the
Laboratory for Atmospheric and Space Physics have also created such
libraries).
Please don't request that the UDUNTS package be polluted in order to do a
job that's best done elsewhere.
With regards,
Steve Emmerson
(I feel better now. Thanks! :-)
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at the above URL.
Regards,
Steve Emmerson
On Wed, Jul 2, 2014 at 5:40 AM, alison.pamm...@stfc.ac.uk wrote:
Dear Andreas,
This might sound like a silly question, but what do you mean by air? Do
you mean just the mixture of gases or do you mean everything that might
be found in a random sample
On 03/21/2013 02:12 PM, John Maurer wrote:
I believe the
canonical units in UDUNITS parlance would translate to m-3, which is
what I find in the standard name table for other number_concentration_*
quantities.
Yup. If the dimension of the physical quantity is number per volume,
then the SI
On 03/22/2013 03:57 AM, Lowry, Roy K. wrote:
An additional point is that I would prefer not to have the semantics of
what was measured encoded into the units of measure.
I couldn't agree more. The NIST also agrees. See sections 7.4 and 7.5 of
http://physics.nist.gov/Pubs/SP811/sec07.html.
John,
On 03/21/2013 09:25 AM, John Caron wrote:
1. ... Unfortunately, udunits used a slightly non-standard
syntax ...
More correctly, the UDUNITS packages accept the ISO standard syntax as
well as some non-standard syntaxes.
I believe this is an example of no good deed (being generous in what
Egil,
Units of physical quantities are only meaningful for physical quantities
(yes, I know that's a tautology :-). Is the profile_id a physical
quantity? I wouldn't think so from its name. If it isn't, then a unit
attribute would be meaningless and possibly misleading.
Regards,
Steve
Upendra,
From the perspective of the UDUNITS unit-packages, the unit Forel-Ule
is the unit Forel multiplied by the unit Ule -- neither, of which,
is known by the UDUNITS or UDUNITS2 packages. I suggest you contact the
author.
Regards,
Steve Emmerson
On 12/08/2011 09:05 AM, Upendra Dadi wrote
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Hash: SHA1
Ian,
On 09/30/2011 01:00 AM, Culverwell, Ian wrote:
Does
singularbit/singular
mean that bits (plural) is not a valid unit?
The unit bits is automatically created and added from the unit bit
if the entry doesn't have a plural tag, which is used
/singular /name
/aliases
/unit
to the installed file $prefix/share/udunits/udunits2-common.xml,
where $prefix is the pathname of the top-level
installation-directory for the UDUNITS-2 package. I recommend adding
them immediately after the definition for the unit count.
Regards,
Steve
John,
On 04/14/2011 08:09 PM, John Caron wrote:
Im thinking that ne wants a grammer that allows
mole X / mole * mole/ mole X = 1
mole X / mole * mole/ mole Y= mole X/ mole Y
and so on.
I wonder if this list could accumulate a list of such examples.
In my opinion, the semantics of
, the Y-axis of a plot could be labeled Amount of Substance
Fraction of Carbon / 1e-9 to plot nanomoles of carbon per mole of whatever.
Regards,
Steve Emmerson
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.e-9 in this case).
Indeed. In my opinion, every display application should allow the user
to specify non-default output units.
Regards,
Steve Emmerson
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, the UDUNITS package does assume the first day of the
year at 00:00:00 UTC if additional resolution time-fields are omitted.
This conforms to the ISO standard.
Regards,
Steve Emmerson
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http
library -- one around which the library is designed -- is the idea that
units have constant size; hence, Caron's and my suggestion for use of a
separate, calendar-handling library.
Regards,
Steve Emmerson
UDUNITS developer
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a lot of data stored on monthly and
yearly time centers -- and more being created every day. The question is
how to handle it.
Regards,
Steve Emmerson
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that the
Practical Salinity Scale (PSS) was used.
Upendra, is this acceptable?
Regards,
Steve Emmerson
UDUNITS developer
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themselves in the foot that way.
Regards,
Steve Emmerson
On 03/04/2010 08:11 AM, Nan Galbraith wrote:
Hi Steve -
Are all the terms in the new vocabulary backwards compatible, other
than non-ASCII characters and log units?
I just spent some time looking on the unidata web site to see if I could
compiler.
2. I've subscribed to the cf-metadata mailing-list (at least for the
duration of the UDUNITS storm :-).
Regards,
Steve Emmerson
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