Hello Sebastien,
I have to admit that coming from an observational background I do not fully
understand the raft of mixed layer thickness Standard Names that I presume have
their origins in model data. They've been around for a long while (dated 2006,
but could predate that by a couple of
Dear Jonathan and Sebastien,
I was initially thinking of not including '_defining_mixed_layer' in my
suggestion and am certainly happy with leaving it out. However, I still think
sigma_t and sigma_theta should be prefixed with 'sea_water'. This would give:
sea_water_temperature_difference
Dear Sebastien,
I somehow missed the previous debate but totally agree with Jonathan's e-mail
as the tidiest solution. I can think of another kludge, but it' s even uglier
than Jonathan's suggestion so I'll keep it to myself!
Cheers, Roy.
Please note that I partially retired on 01/11/2015.
Dear All,
Here is an initial batch of 8 Standard Names to support the CF taxon dimension.
Two are dimension labels whilst the other six are measurements to which the
taxon is a co-ordinate. Five of these are to cover Daniel's proposal that
prompted the resurrection of Ticket 99.
I've
s of this).
John
---
John Graybeal
jbgrayb...@mindspring.com<mailto:jbgrayb...@mindspring.com>
650-450-1853
skype: graybealski
linkedin: http://www.linkedin.com/in/johngraybeal/
On Apr 16, 2018, at 03:10, Lowry, Roy K.
<r...@bodc.ac.uk<mailto:r...@bodc.ac.uk>> wrote:
s?) like 'size class',
'gender' and 'life stage'.
Cheers
Daniel
On 19.04.2018 18:02, Lowry, Roy K. wrote:
Hi John,
To my thinking your arguments add support for 'biological_taxon_lsid' over
'biological_taxon_identifier' defined as LSID, which Jonathan prefers and I am
starting to fe
requirement is urgent.
From: Lowry, Roy K.
Sent: 16 April 2018 11:09
To: Daniel Neumann
Subject: Re: [CF-metadata] Standard Names to support Trac ticket 99
Thanks Daniel,
To clarify LSID isn't a database, it's an identifier for an organism that
neatly brings
cket. I hope that it can be made to meet
Daniel's needs.
Best wishes
Jonathan
- Forwarded message from "Lowry, Roy K." <r...@bodc.ac.uk> -
> Date: Thu, 29 Mar 2018 16:12:50 +
> From: "Lowry, Roy K." <r...@bodc.ac.uk>
> To: Daniel Neumann <
Dear All,
First, the correct spelling is 'flagellate', not 'flaggelate'.
Secondly, this proposal causes me concerns because it is adding more biological
names (not species but taxonomic phyla, although Flagellate in an unaccepted
synonym for
t it can be made to meet
> Daniel's needs.
>
> Best wishes
>
> Jonathan
>
> - Forwarded message from "Lowry, Roy K." <r...@bodc.ac.uk> -
>
>> Date: Thu, 29 Mar 2018 16:12:50 +
>> From: "Lowry, Roy K." <r...@bodc.ac.uk
Dear Jeff,
I see a possibility for confusion here. Whilst the meaning of 'month' as 30
days is well understood within the 360-day calendar community, others from
outside that community could easily use 'months since' expecting it to mean
365.242198781/12. Would it be possible to use a more
Dear Dave,
I see no problem with CF incorporating external standards such as UDUNITS
providing that standard is adequately maintained (e.g. addition of new
concepts) and supported by its governance through the provision of tools. In my
opinion UDUNITS governance makes the grade. Indeed, it
Hi Alison,
I'll give these a final careful read through early next week.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: CF-metadata on behalf of Alison
Pamment - UKRI STFC
Dear All,
I'm happy with James's updated sentence. It says the same thing but is clearer.
Once the fCO2 name has been added we could consider using it to upgrade other
partial pressure definitions.
I think the last sentence is there to conform to a definition pattern that
includes some less
Dear Jonathan,
I seem to remember the 'what is spread' discussion coming up last time we
encountered wave directional spread Standard Names. The Standard Name
sea_surface_wave_directional_spread has the definition:
Directional spread is the (one-sided) directional width within a given
of Lowry, Roy K.
Sent: 28 September 2018 15:05
To: Jonathan Gregory; Rob Thomas
Cc: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] Spectral wave direction spread parameter
Dear Jonathan,
I seem to remember the 'what is spread' discussion coming up last time we
encountered wave directional
Dear Jim,
Currents are measured by attaching one or more current meters along a rope
suspended in the water body known as the mooring. Established practice is to
call the current meters the instruments and the mooring the platform. As
current meters have developed, some have been fitted with
Dear Alison,
I have read through the definitions and can see no errors.
As always when doing this, one sees possible 'improvements' but these are not
critical and so are best kept to myself or we will never reach end game with
this proposal.
Cheers, Roy.
I have now retired but will
Dear Jim,
>From my researches into existing oceanographic data sets (SeaDataCloud
>holdings plus EU glider data projects), covering heave, pitch, roll and yaw. I
>haven't discovered a single deviation from the conventions:
heave positive up
Pitch positive bow/nose up
yaw positive to
uses the standard name table this
way, I know, but for
those who do this is really helpful.
Thanks for bringing this together!
- Nan
On 9/20/18 4:35 AM, Lowry, Roy K. wrote:
>
> Dear Alison,
>
>
> Your proposal is a much better solution than deprecating the original
> Standa
Do others support the idea of having triplets of names in this way?
>
> Best wishes,
> Alison
>
> --
> Alison Pamment Tel: +44 1235 778065
> NCAS/Centre for Environmental Data ArchivalEmail:
> alison.pamm...@stfc.ac.uk
> STFC Rutherford Appleton Laborator
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu; ngalbra...@whoi.edu
Subject: RE: [CF-metadata] Platform Heave
Dear Nan and Roy,
In fact I had neglected to consider the case when the sign is unknown or
unrecorded. I am used to thinking about model data, where the sign of a
quantity is always known, but I
.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: Alison Pamment - UKRI STFC
Sent: 20 September 2018 15:59
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu; ngalbra...@whoi.edu
Subject: RE
Dear Paul,
I'm pretty sure the Canonical Unit should be Pascal, as with the existing
partial pressure Standard Names. Note that this doesn't mean the data need to
be in Pascals, it is just a way of expressing dimensionality in terms of SI.
There is a field for the actual units of measure in
.
From: Alison Pamment - UKRI STFC
Sent: 19 September 2018 19:04
To: Lowry, Roy K.; Jim Biard; cf-metadata@cgd.ucar.edu
Subject: RE: [CF-metadata] Platform Heave
Dear Jim et al.,
Thank you again for all the work on these names and their definitions. I have
now caught up with all the comments
December 2018 16:19
To: Lowry, Roy K.; Daniel Neumann; cf-metadata@cgd.ucar.edu
Subject: RE: [CF-metadata] New standard names for Dissolved Inorganic Nitrogen
and Particulate Organic Nitrogen
Dear Daniel and Roy,
Thank you, Daniel, for proposing two new standard names. I agree with Roy that
they
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: Lowry, Roy K.
Sent: 13 December 2018 18:31
To: cf-metadata-ow...@lists.llnl.gov
Subject: Re: [CF Metadata] #160: Proposal to use GitHub instead
Hello Simon,
If you look at the definition for
ocean_mixed_layer_thickness_defined_by_temperature you will get a better
understanding about what sea_water_temperature_difference is about. It is an
auxiliary co-ordinate variable used to specify the temperature change that
defines the base of
.
From: Roy Mendelssohn - NOAA Federal
Sent: 05 December 2018 14:35
To: cf-metadata@cgd.ucar.edu
Cc: Lowry, Roy K.
Subject: Re: [CF-metadata] Sea water temperature anomaly standard name
Interesting. Look at the archive around April 4, 2016. I was requesting a
standard way
Hi Daniel,
These look straightforward to me and would be a useful addition.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: CF-metadata on behalf of Daniel
Neumann
Sent: 22
by the vendors - so presumably people will be able to
figure
out which side is which, and these terms will be OK.
- Nan
On 9/7/18 4:07 AM, Lowry, Roy K. wrote:
Good point,
So you'd prefer platform_roll_starboard_down and so on?
Cheers, Roy
Hi John,
Your Q2 has been discussed at length. The local vertical axis is indeed local
to the platform, as are the axes running front to back and left to right.
Your eagle eyes have indeed spotted something I missed in the yaw definition '
'Yaw is a rotation about the axis of rotation'
n be defined on those mobile objects to deal
with relative positions for other objects.
On 9/13/18 12:15 PM, Lowry, Roy K. wrote:
Hi John,
Your Q2 has been discussed at length. The local vertical axis is indeed local
to the platform, as are the axes running front to back and left to right.
Dear Daniel,
The value you should store is 35. There is much discussion in the CF archives
on the various types of salinity and their units that is best not repeated. It
may help your understanding to think of the reason practical salinity is
dimensionless and has the canonical unit 1 as being
These look good to me.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: CF-metadata on behalf of Daniel
Neumann
Sent: 16 May 2019 10:29
To: CF Metadata Mail List
Subject:
Dear Martin,
>From what I can see, the productivity Standard Name descriptions use the
>phrase '"Productivity" means production per unit area'. Looking at the
>canonical units productivity is moles_or_mass/m2/s, whereas production is
>moles_or_mass/m3/s. This means that productivity is in fact
ew
> meters; do we need to
> apply some limit to the distance? I'm thinking about the various
> sea_surface_temperature
> variants, surface_skin and surface_subskin, but I'm assuming this
> isn't needed for sea
> floor measurements.
>
> Thanks - Nan
>
>
> On 9/
it think it was worth the ask if
> they know.
>
> -Barna
>
> > On 2019-09-10, at 07:42, Lowry, Roy K. wrote:
> >
> > Dear Barna,
> >
> > Perhaps the existing Standard Name would suffice for Cathy's needs
> as she is labelling model output and the models
.
Thanks - Nan
On 9/10/19 1:59 PM, Lowry, Roy K. wrote:
> Hi again,
>
> I place great weight on the phrase 'where appropriate'. If a model
> works out electrical conductivity and then uses the PSS-78 algorithms
> to compute the salinity then using 'practical salinity' would b
retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: Andrew Barna
Sent: 10 September 2019 18:47
To: Lowry, Roy K.
Cc: Cathy Smith ; CF Metadata List
Subject: Re: [CF-metadata] new variable name request
Thanks Roy
Dear Barna,
Perhaps the existing Standard Name would suffice for Cathy's needs as she is
labelling model output and the models in my experience do not work to a
specific measurement scale. This is because boundary condition and assimilation
data sets can include measurements of more than one
Hi again,
I have seen many examples of model output over the years where salinities have
been tagged with the units of 'PSU' but I know for a fact that the source data
used have been a mixture of PSS-78 and historical data that strictly speaking
should be given units of ppt.
I would counsel
Dear Ken,
Having been involved in the quite painful process of weaning out data quality
information from the host of status flag (often misnamed quality flag) schemes
in oceanographic legacy data I would be very disappointed were 'quality_flag'
not to be accepted as a Standard Name. If nothing
Dear Barna,
I don't think legacy schemes that notoriously mix quality statements with other
information are a problem. They would simply be labelled 'status_flag'.
'quality_flag' would be reserved for schemes with cleaner semantics. My
understanding of the proposal does not change the meaning
Hi John,
I touched on this issue when the sea floor temperature and practical salinity
names were set up. My understanding is that it does have a meaning which is
the portion of the water column influenced by the seabed, sometimes termed the
'benthic boundary layer'. Oceanographers I've
amment
Tel: +44 1235 778065
NCAS/Centre for Environmental Data AnalysisEmail:
mailto:alison.pamm...@stfc.ac.uk
STFC Rutherford Appleton Laboratory
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.
From: CF-metadata On Behalf Of Lowry, Roy K.
Sent: 12 September 2019 19:59
To: cf-me
Thanks Jonathan,
I don't think your example is an exact analogue as the layer thicknesses by
different methods are systematically different. The whole point of Hs is that
it is the closest approximation from analysis of measurements to the wave
height that would be reported by an observer
Hello Elodie,
This is a large proposal that I think raises a number of issues to be
discussed. Trying to tackle everything at once could easily tie everybody in
knots resulting in a stalled proposal. So, I will try and focus on one area at
a time so that we actually get somewhere!
Let's
Dear All,
I have no problems with losing the information about the observer and so am
happy with Nan's suggestion.
Cheers, Roy.
Please note that I partially retired on 01/11/2015. I am now only working 7.5
hours a week and can only guarantee e-mail response on Wednesdays, my day in
the
mes.
Regards,
Elodie
On 02/05/2016 10:51, Lowry, Roy K. wrote:
Dear Elodie,
Following my comments on Hs, here are some comments on the rest of your
proposals for additional wave height Standard Names. Most of the comments
follow the same theme of placing statistic derivation methods out of the
Dear Jonathan,
Thank you for drawing my attention to what is a glaring error in the existing
wave height Standard Name definitions. I've no idea how I failed to spot it
before - trying to fit CF into spare moments leading to too much scan reading
or perhaps they were set up before I became
sea_surface_primary_swell_wave_significant_height
definition of "sea_surface_wave_significant_height" + The primary swell wave is
the most energetic swell wave.
- sea_surface_secondary_swell_significant_height
definition of "sea_surface_wave_significant_height" + The secondary swell wave
is the second most
Dear Elodie,
Following my comments on Hs, here are some comments on the rest of your
proposals for additional wave height Standard Names. Most of the comments
follow the same theme of placing statistic derivation methods out of the
Standard Name. My proposed changes will affect your
Dear Jonathan,
Many thanks for your constructive response. As always your Standard Name
grammar is more precise than mine and so I am happy with your suggestions
providing Elodie and her colleagues have no problems.
Cheers, Roy.
-Original Message-
From: CF-metadata
Thanks Chris,
An excellent point, and the word 'vertical' should be added to the definitions.
I was wondering about including highest one-third in the Hs definition, but
there are alternatives and I tried to find an understandable form of words
covering all and failed dismally. Maybe
be sent to enquir...@bodc.ac.uk.
Please also use this e-mail if your requirement is urgent.
From: John Maurer <jmau...@hawaii.edu>
Sent: 19 April 2016 19:14
To: Lowry, Roy K.
Cc: alison.pamm...@stfc.ac.uk; cf-metadata@cgd.ucar.edu;
j.m.greg...@reading.ac.uk
Subje
an Gregory
Subject: Re: [CF-metadata] request for new CF standard_name: CDOM
Thanks, Jonathan and Roy! Your suggestions sound fine by me.
Cheers,
John Maurer
Pacific Islands Ocean Observing System (PacIOOS)
University of Hawaii at Manoa
Date: Fri, 25 Mar 2016 09:05:08 +0000
From: "Lowr
Dear All,
What follows is a modification of part of the proposal initially submitted by
Elodie Fernandez following off-list work between Elodie, Marta, Chris Barker,
Nan Galbraith and myself. It includes a change (deprecation plus creation of an
alias) to three existing Standard Names, plus
of observation over which the mean etc.
is calculated?
Best wishes
Jonathan
- Forwarded message from "Lowry, Roy K." <r...@bodc.ac.uk> -
> Date: Wed, 25 May 2016 10:09:21 +
> From: "Lowry, Roy K." <r...@bodc.ac.uk>
> To: "cf-metadata@c
Hi Dan,
PFC-14 is already present as mole_fraction_of_carbon_tetrafluoride_in_air
(http://vocab.nerc.ac.uk/collection/P07/current/GYGQPPOA/).
Otherwise look fine.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
March 2019 14:33
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu
Subject: Re: New halocarbon standard name requests
Apologies, can I also add the following:
PFC-318
Standard name: mole_fraction_of_pfc318_in_air (Canonical unit: 1)
Long name: 'Mole fraction is used in the construction
Hi again,
After bumping into one accidental duplicate, I thought I'd better check the
first part of your submission more carefully and found
'mole_fraction_of_carbon_tetrachloride_in_air'
(http://vocab.nerc.ac.uk/collection/P07/current/CFV8N16/) already exists, which
I missed first time
Thanks Dan,
Nicely put together and I can't see any issues.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: CF-metadata on behalf of Dan Say
Sent: 29 March 2019 13:11
To:
ddle of it, I
think.
Yes, it would be good to hear an authoritative view on whether there is more
than one standard in use.
Best wishes
Jonathan
- Forwarded message from "Lowry, Roy K." -
> Date: Fri, 15 Feb 2019 15:24:06 +
> From: &quo
t of Y.
> Difluoromethane is described by its common name, HFC-32.
>
>
> Standard name: mole_fraction_of_trifluoromethane_in_air
>
> Long name: mole_fraction_of_trifluoromethane_in_air
>
> Definition: Mole fraction is used in the construction
> mole_fraction_of_X_in_Y, where X is a material
by its common name, HFC-32.
>
>
> Standard name: mole_fraction_of_trifluoromethane_in_air
>
> Long name: mole_fraction_of_trifluoromethane_in_air
>
> Definition: Mole fraction is used in the construction
> mole_fraction_of_X_in_Y, where X is a material constituent of Y.
> Trifluoromethane
!
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: David Hassell
Sent: 13 March 2019 11:18
To: Lowry, Roy K.
Cc: Klaus Zimmermann; CF Metadata
Subject: Re: [CF-metadata] Addition
Dear Dan,
I think it would be better to have the IUPAC names somewhere (e.g.
1,1,1,2-tetrafluoroethane for hfc134a if Wikipedia is correct) in the Standard
Name entry. I'd be happy with it in the definition but would not object to it
being in the Standard Name itself.
Cheers, Roy.
I have
March 2019 16:59
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu
Subject: Re: Addition of HFC standard names
Hi Roy,
Would it make more sense to leave the standard name as suggested, but replace
'hfc134a' with '1,1,1,2-tetrafluoroethane' in the long name, for simplicity?
This is my first venture
I think that delta-14CO2 is not the same thing as the mole fraction. Rather, it
is an expression of isotopic enrichment/depletion with respect to a standard.
Whilst I have no experience of atmospheric 14C, I have come across delta
notation a lot with other isotopes in geology and oceanography
n authoritative view on whether there is more
than one standard in use.
Best wishes
Jonathan
- Forwarded message from "Lowry, Roy K." -
> Date: Fri, 15 Feb 2019 15:24:06 +
> From: "Lowry, Roy K."
> To: Jonathan Gregory , "cf-metadata@cgd.ucar.edu&quo
ated in this diagram along with
the Radiocarbon age in years BP (Before 1950 AD).
www.c14dating.com
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
From: Katherine Pugsley
Sent: 13 February 2019 08:35
T
to know what this means:
> The sample ratio is normalised to – 25 per mil delta13C (to correct for
> isotopic fractionation).
(although I understand Roy's remark that it doesn't affect the definition).
Best wishes
Jonathan
- Forwarded message from "Lowry, Roy K." -
>
small_delta.
Best wishes
Jonathan
- Forwarded message from "Robert M. Key" -
> Date: Wed, 13 Feb 2019 14:31:58 +
> From: "Robert M. Key"
> To: Katherine Pugsley
> CC: "Lowry, Roy K." , Jonathan Gregory
>, "cf-metadata@cgd.uc
---
>
>> Date: Wed, 13 Feb 2019 14:31:58 +
>> From: "Robert M. Key"
>> To: Katherine Pugsley
>> CC: "Lowry, Roy K." , Jonathan Gregory
>> , "cf-metadata@cgd.ucar.edu"
>>
>> Subject: Re: [CF-metadata]
ust because one had a small d where the other
> had a big D. If we ever need the small-delta version we can put small_delta.
>
> Best wishes
>
> Jonathan
>
> - Forwarded message from "Robert M. Key" -
>
>> Date: Wed, 13 Feb 2019 14:31:58 +
&g
, because there
appear to be variou quantities with big and small delta and D, and maybe they
are all different, and would need distinct standard names. I think Roy is right
that we have not given standard names to such quantities before.
Best wishes
Jonathan
- Forwarded message from "Lowry,
address.
From: Katherine Pugsley
Sent: 11 February 2019 14:33
To: Alison Pamment - UKRI STFC; Lowry, Roy K.; cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] New standard name for 14CO2
Hi All,
Thank you, Roy, Jonathon and Alison, for your feedback
Dear Chris,
The embedding of semantics in units of measure is something I have fought
against for decades, largely because software agent AI algorithms are unlikely
to look for them there. Your suggestion is also something that would never get
past the guardians of UDUNITS.
However, I can
.
From: CF-metadata on behalf of Lowry, Roy K.
Sent: 08 April 2019 20:56
To: Alison Pamment - UKRI STFC; cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] New halocarbon standard name requests
Hi Alison,
You're right about hcc140a - I'd missed that because
Tel: +44
1235 778065
NCAS/Centre for Environmental Data Analysis Email: alison.pamm...@stfc.ac.uk
STFC Rutherford Appleton Laboratory
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.
From: CF-metadata On Behalf Of Lowry, Roy K.
Sent:
Hi Alison,
I have never used PubChem - I tend to use ChEBI - but reading around it seems a
highly respected standard and I can find no valid argument against its use.
Cheers, Roy.
I have now retired but will continue to be active through an Emeritus
Fellowship using this e-mail address.
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