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 invo
- 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
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 [mailto: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 somethi
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 office
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 the
hods with
time-bounds to describe the period of observation over which the mean etc.
is calculated?
Best wishes
Jonathan
- Forwarded message from "Lowry, Roy K." -
> Date: Wed, 25 May 2016 10:09:21 +
> From: "Lowry, Roy K."
> To: "cf-metadata@cgd.
d, as well.
I'm sorry I didn't work harder to resolve these issues in the off-list
discussion, it's been a busy time here.
Cheers - Nan
Quoting "Lowry, Roy K." :
> Hello Jonathan,
>
> Whilst the cell-method approach might look feasible for the wave
> period su
Dear All,
Please find the third part of the wave Standard Name proposal. This includes
changes to the definition for five of the six existing wave direction Standard
names plus five new Standard names.
Based on the proposal of Elodie and Marta with further off-list discussion by
Chris Barker,
erature, and should not have a depth associated with
it. Do we need
to include a description of how this term is used in waves, as part of
these definitions?
Thanks!
Nan
On 6/1/16 9:06 AM, Lowry, Roy K. wrote:
> Dear All,
> Please find the third part of the wave Standard Name proposal.
Forget to use 'Reply All'.....
From: Lowry, Roy K.
Sent: 15 June 2016 08:05
To: ngalbra...@whoi.edu
Subject: Re: [CF-metadata] Wave Direction, Energy and Steepness Sub-Proposal
Hi Nan,
I thoroughly understand what you are proposing and that the proposed names are
not affe
Many thanks Alison,
I'm perfectly happy with your suggested change of 'average' to 'mean' in the
proposed height Standard Names.
Cheers, Roy.
From: CF-metadata [mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of
alison.pamm...@stfc.ac.uk
Sent: 22 June 2016 14:32
To: cf-metadata@cgd.ucar.edu
Dear Mike and Ute,
There is a parameter 'total petroleum hydrocarbons' (TPH) defined as 'A mixture
comprising all substances comprising totally of carbon and hydrogen that may be
extracted from a sample using an organic solvent. These are presumed sourced
from crude oil.'. This is used by the w
eaning too and
therefore convey some extra information? It would be good to be explicit if
that is the case.
Best wishes
Jonathan
- Forwarded message from mikegod...@yahoo.com -----
> Date: Thu, 30 Jun 2016 15:57:35 +
> From: mikegod...@yahoo.com
> To: "Lowry, Roy K."
Hi Chris,
I applaud your proposed holistic approach that will cover both modelling and
measurement of crude oil contamination. This will obviously take time and so
you're proposing a generic Name with the contaminant specified in the long name
as a stop-gap. This causes me some concern from an
Thanks Chris,
Totally agree - I was planning to say exactly this in a posting later today.
Actually the SeaOWL measures both fluorescence and backscatter, but that's
nit-picking. Chlorophyll fluorometers have Standard Names pertaining to
chlorophyll concentration - it's the geophysical phenom
Dear Jonathan,
I think we've lost the thread a little here. I initially suggested TPH until I
realised the nature of Mike's measurements. Once I did I withdrew the
suggestion. Therefore the 'total' or 'no total' debate is possibly a red
herring.
Cheers, Roy.
-Original Message-
From: C
ry for not keeping up. Jonathan
- Forwarded message from "Lowry, Roy K." -
> Date: Wed, 6 Jul 2016 09:19:56 +0000
> From: "Lowry, Roy K."
> To: Jonathan Gregory , "cf-metadata@cgd.ucar.edu"
>
> Subject: RE: [CF-metadata] New standard name
onse on Wednesdays, my day in
the office. All vocabulary queries should be sent to enquir...@bodc.ac.uk.
Please also use this e-mail if your requirement is urgent.
From: CF-metadata on behalf of Lowry, Roy K.
Sent: 06 July 2016 11:28
To: J
Dear Martin,
This sounds an excellent idea. What do you thinks of the idea of building the
knowledge into NVS to make it accessible in machine-readable form and so the
requirements could be enforced by the CF checker?
Cheers, Roy.
-Original Message-
From: CF-metadata [mailto:cf-metada
ndard Name updates loaded into
the master system. I will be in touch later in the year.
Cheers, Roy.
From: Peters, Herman (CIV) [mailto:herman.pet...@rws.nl]
Sent: 13 July 2016 12:54
To: 'cf-metadata-boun...@cgd.ucar.edu'
Cc: 'cf-metadata@cgd.ucar.edu'; 'm...@puertos.es';
eries should be sent to enquir...@bodc.ac.uk.
Please also use this e-mail if your requirement is urgent.
From: martin.juc...@stfc.ac.uk
Sent: 13 July 2016 16:36
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu
Subject: RE: [CF-metadata] Recording requirements express
Sent: 14 July 2016 14:10
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu
Subject: RE: [CF-metadata] Recording requirements expressed in standard name
definitions
Hi Roy,
I can see how that might work. However, I still think it would still be useful
to have a clearly structured list as an
if your requirement is urgent.
From: Lowry, Roy K.
Sent: 31 August 2016 09:25
To: ngalbra...@whoi.edu
Subject: Re: [CF-metadata] radiosonde ascent rate?
Dear Nan,
I have never seen descent rate included as a CTD data parameter. Occasionally,
I have seen it
Hi Chris,
One time zone label (Z for UT) is valid in 8601.
In SeaDataNet we took the decision some 10 years back to 'profile' ISO8601 by
disallowing any character to the right of the seconds and defining the result
as UT. The reason this was done was to prevent data delivery in local time wit
Look fine to me as well.
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 office. All vocabulary queries should be sent to enquir...@bodc.ac.uk.
Please also use this e-m
Hi Alison,
First of all, apologies for not commenting sooner - looking at this proposal as
been on my todo list, but I hadn't got around to it. However, your e-mail makes
it look like you're approaching end game so I thought I'd better provide some
input.
I would suggest changing the C13 and
Hello John,
I'm getting a little confused here. Why is the dimensionality of the surface
measurement different? I would have expected it to be something like mol m-3
for concentrations at any depth. Or am I misunderstanding what you wish to
describe?
Cheers, Roy.
Please note that I partial
also use this e-mail if your requirement is urgent.
From: John Dunne - NOAA Federal
Sent: 21 October 2016 20:31
To: Lowry, Roy K.
Cc: Jonathan Gregory; cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] New standard names for OMIP biogeochemistry and
chemistry
ulary queries should be sent to enquir...@bodc.ac.uk.
Please also use this e-mail if your requirement is urgent.
From: Gwyn Fireman
Sent: 01 November 2016 14:22
To: Lowry, Roy K.; cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] White space in CF standard
Dear John,
Following these comments, I now wonder a little more about your previous
comment on differences in dimensionality between your surface concentrations
and concentrations at depth. Could you clarify what the units of measure are
for your 2D simulations? Are they concentrations per un
Dear All,
Some additional information on 'chorophyll-a fluorescence' in observational
oceanography. As John says, strictly speaking fluorescence is the amount of
radiation within a given waveband resulting from excitation. It could also be
expressed as a dimensionless parameter that is the rati
Hello Matthias,
The Standard Name:
concentration_of_colored_dissolved_organic_matter_in_sea_water_expressed_as_equivalent_mass_fraction_of_quinine_sulfate_dihydrate
was set up to describe the measurements made by an ECO. Providing you have done
nothing to recalibrate the data from the CTD th
Dear Martin,
We serve the Standardized regions on NVS at
http://vocab.nerc.ac.uk/collection/P30/current/
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 office. All v
Dear Mike,
My understanding is that the discussion reached a successful consensus as per
your e-mail below and therefore it should be in the queue for inclusion without
any need for further action.
Cheers, Roy.
Please note that I partially retired on 01/11/2015. I am now only working 7.5
h
Agreed. 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 office. All vocabulary queries should be sent to enquir...@bodc.ac.uk.
Please also use this e-mail if your require
Dear All,
I can see the sense for the technical issues, but for Standard Name proposal
discussions I would prefer to keep to the current system of e-mail plus the
CEDA thread-tracking system unless Alison would like to see that replaced by
GitHub. Having e-mail thread 'clarification' split acr
Hi Steve,
I think there is a CF precedent would pacify you a little here, which is to
have Standard Names of the form 'volume_mixing_ratio' with canonical units of
dimensionless such as volume_mixing_ratio_of_oxygen_at_stp_in_sea_water. I
would suggest following this practice in this case wit
l vocabulary queries should be sent to enquir...@bodc.ac.uk.
Please also use this e-mail if your requirement is urgent.
From: Allen Jordan - NOAA Affiliate
Sent: 28 February 2017 22:40
To: Lowry, Roy K.
Cc: Steve Emmerson; CF Metadata Mail List
Subject: Re: [CF-me
-mail if your requirement is urgent.
From: alison.pamm...@stfc.ac.uk
Sent: 11 March 2017 12:48
To: Lowry, Roy K.; elodie.fernan...@mercator-ocean.fr;
stephane.ta...@ifremer.fr; cf-metadata@cgd.ucar.edu
Cc: m...@puertos.es
Subject: RE: Wave Direction, Energy and Steep
equirement is urgent.
From: alison.pamm...@stfc.ac.uk
Sent: 11 March 2017 12:49
To: Lowry, Roy K.; elodie.fernan...@mercator-ocean.fr;
stephane.ta...@ifremer.fr; cf-metadata@cgd.ucar.edu
Cc: m...@puertos.es
Subject: RE: Wave periods sub-proposal
Dear Roy, Elodie
John's input is
whether for the purposes of CF we need all four or could we just have the first
two?
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Jonathan Gregory
Sent: 28 April 2009 08:32
To:
ory
Sent: 30 April 2009 15:16
To: cf-metadata@cgd.ucar.edu; Lowry, Roy K
Subject: [CF-metadata] new standard name request for pH
Dear Roy
> The two pH variants I knew of before I prodded John for information were NBS,
> which is based on hydrogen ion concentration per unit volume (mo
Thanks Jonathan,
Yes, OK.
I guessed why you wanted the vaguer term!
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Jonathan Gregory
Sent: 30 April 2009 15:43
To: cf-metadata@cgd.ucar.edu; Lowry, Roy K
f-metadata-boun...@cgd.ucar.edu] On
Behalf Of Christiane Textor [christiane.tex...@lsce.ipsl.fr]
Sent: 30 April 2009 17:13
To: Lowry, Roy K; Jonathan Gregory
Cc: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] new standard name request for pH
Dear all,
I am not an expert ocean acidification a
Any advances on his
conventions obviously need consideration.
Cheers, Roy.
From: Christiane Textor [christiane.tex...@lsce.ipsl.fr]
Sent: 30 April 2009 20:41
To: Lowry, Roy K; Lowry, Roy K
Cc: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] new standard
ame time I am acutely aware of the effects errors of that magnitude
have on deep ocean carbon budget calculations.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of John Graybeal
Sent: 02 May 2009 01:28
To:
ve learned a lot during this thread.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of John Graybeal
Sent: 08 May 2009 07:54
To: CF List Metadata; Lowry, Roy K
Subject: Re: [CF-metadata] new standard name request
e same for analytical
methods look very daunting.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Jonathan Gregory
Sent: 08 May 2009 10:29
To: cf-metadata@cgd.ucar.edu; Lowry, Roy K
Subject: [CF-metadata] new sta
Sent: 11 May 2009 18:27
To: olivier lauret; Lowry, Roy K
Cc: CF-metadata email list; Thomas LOUBRIEU; Yann BARZIC; Laurence Crosnier;
Bruce Hackett
Subject: Re: [CF-metadata] Proposal for additional CF biogeochemistry attributes
On Mon, 11 May 2009, olivier lauret wrote:
>
h better vehicle for presenting complex information than
structured text that ideally has limited length.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Jonathan Gregory
Sent: 11 May 2009 18:30
To: cf-metadata@cgd.
Dear All,
During an exercise with Alison mapping the CF Standard Names to a units
vocabulary in the BODC vocabulary server I noticed that the units for salinity
were '1.00E-03', i.e. parts per thousand. My understanding in that since the
introduction of the Practical Salinity Scale that salini
Hello Jonathan,
The reason I'm resurrecting this discussion is that we came under strong
pressure from a group of physical oceanographers to use 'dimensionless' with no
scaling factor instead of PSU for salinity. I was raising the issue on the
list to see how widespread this opinion was.
Chee
Dear All,
Might be worth looking at
http://www.oceanographers.net/forums/showthread.php?t=902
Cheers, Roy.
--
This message (and any attachments) is for the recipient only. NERC
is subject to the Freedom of Information Act 2000 and the contents
of this email and any reply you make may be discl
Hi Bryan,
Steve's query presents something of a Standard Names crossroads. 'Chlorophyll'
is a very generic word covering a group of pigments (chlorophyll-a,
chlorophyll-b, divinyl chlorophyll-a, etc.) that some analytical techniques can
resolve whilst others cannot. 'Chlorophyll' is also a prox
l Message-
From: Bryan Lawrence [mailto:bryan.lawre...@stfc.ac.uk]
Sent: 29 July 2009 09:56
To: Lowry, Roy K
Cc: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] Standard name definitions ... are these formal or
flexible
Hi Roy
Glad that it looks like Steve's specfiic problem isn't a prob
Hi Jenny,
My slight concern with this proposal is that the Standard Name text might be
misinterpreted at the longest period during an interval of time. Might it be
better to have sea_surface_wave_period_at_wave_energy_peak?
Cheers, Roy.
From: cf-metadat
Hello Jonathan,
I think the "mean" comes from the world of observations. Wave data are
acquired with kit that takes multiple measurements so any parameterisation is
subject to variance.
However, I have only ever seen means used and I have seen a great deal of
inconsistency in whether the fact
I think Bryan has a very valid point. A basic principle of sound vocabulary
content governance is that if it's published don't change it. If it's wrong,
deprecate it and replace it by something else. One can never assume that
something published has never been used.
Cheers, Roy.
-Origina
Hello Martin,
There is another possible solution to your problem, which we are looking at for
dealing with a data source flag to be used with the GEBCO bathymetric grid.
This is to put a URI base into an attribute that when concatenated with a flag
values gives the flag definition from a vocab
Hi Martin,
Building another server might not be the best use of resources. I'm always
happy to extend the content I serve.
Cheers, Roy.
-Original Message-
From: martin.juc...@stfc.ac.uk [mailto:martin.juc...@stfc.ac.uk]
Sent: 27 October 2009 12:30
To: Lowry, Roy K; cf-met
ist/GGS1/2/
Cheers, Roy.
-Original Message-
From: John Caron [mailto:ca...@unidata.ucar.edu]
Sent: 27 October 2009 13:17
To: Lowry, Roy K
Cc: martin.juc...@stfc.ac.uk; cf-metadata@cgd.ucar.edu; Weatherall, Pauline
Subject: Re: [CF-metadata] Dealing with large numbers of flag values i
2009 15:37
To: martin.juc...@stfc.ac.uk
Cc: Lowry, Roy K; cf-metadata@cgd.ucar.edu; Weatherall, Pauline
Subject: Re: [CF-metadata] Dealing with large numbers of flag valuesinnetcdf cf
writes:
> Hello Roy,
>
> That is an interesting idea. There are definitions of these areas on a WWF
Hi Heinke,
I am involved in this issue through an IODE/SCOR group on data publication. I
see the development of identifier allocation and URI resolution as outside the
scope of CF. It is something that needs to be provided as a service by a
dedicated organisation with a high level of professi
Dear All,
I come from Nan's community with the added complication of exposure to CSML
through working with NDG. From this position in BODC we have developed a
collection of feature type names that my intention is to map to the CF feature
type names once John's work is complete. As I watch the
el for them.
Cheers, Roy.
From: Richard Signell [rsign...@gmail.com]
Sent: 15 November 2009 15:00
To: Lowry, Roy K
Cc: ngalbra...@whoi.edu; cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] CF point observation Conventions ready for review
Roy,
I come fro
;d
aggregate profiles vs time series.
A point, in my lexicon, is an atomic unit, a single measurement at a single
x,y,z,t. Is there a "single point" in your feature types? Why assign the term
point to a set of measurements with single x, y, and z and progressing t, as
opposed to a set of
Dear All,
I think a new Standard Name 'sea_floor_depth_below_sea_surface' is what's
needed here. My definition for this would be 'The vertical distance between
the sea surface and the seabed at a given point in space and at a given instant
in time or averaged over a time interval that is signi
ght_above_geoid'. That could be a possibility too, I think?
Cheers,
Olivier.
-Message d'origine-
De : cf-metadata-boun...@cgd.ucar.edu [mailto:cf-metadata-boun...@cgd.ucar.edu]
De la part de Lowry, Roy K
Envoyé : mercredi 27 janvier 2010 09:58
À : Jeff deLaBeaujardiere; cf
Hi John,
Simple pragmatism. It's what a BPR data stream tends to contain and so it
needs labelling.
Cheers, Roy.
From: John Graybeal [jbgrayb...@mindspring.com]
Sent: 27 January 2010 16:41
To: Lowry, Roy K
Cc: Jeff deLaBeaujardiere; cf-met
surface and the seabed as
measured at a given point in space including the variance caused by tides and
possibly waves'? Or can you do better?
Cheers, Roy.
-Original Message-
From: John Graybeal [mailto:jbgrayb...@mindspring.com]
Sent: 27 January 2010 23:01
To: Lowry, Roy K
Cc: cf-m
as a physical manifestation such as a metal peg
driven into a wall.
Cheers, Roy.
-Original Message-
From: Jeff deLaBeaujardiere [mailto:jeff.delabeaujardi...@noaa.gov]
Sent: 28 January 2010 14:06
To: Lowry, Roy K
Cc: John Graybeal; cf-metadata@cgd.ucar.edu; Mike Garcia
Subject: Re: [C
Dear Jonathan,
The alias structure has developed into a deprecation mechanism and some of the
more recent corrections have changed the meanings of the terms, so that the
term and its alias are no longer synonyms. Using the alias mechanism to
establish synonyms between undeprecated terms invite
Hello Nan,
I was arguing at the start of this thread that an instantaneous single-beam
echosounder measurement is the so close to being the same thing as a BPR
measurement in tidal mode with waves filtered out (ever looked at echosounder
data from an anchored ship?) that they should be called t
Hello Alison,
There are a lot of potential reference datums. I have a vocabulary containing
31 examples plus two nulls (http://vocab.ndg.nerc.ac.uk/list/L111/current or
http://seadatanet.maris2.nl/v_bodc_vocab/search.asp?name=(L111)%20Vertical+Co-ordinate+Reference+System+Origins&l=L111
in pla
Hi Jeff,
(1) I like 'station_datum' and definitely prefer 'above_station_datum' to
'water_level_relative_to_station_datum'.
(2) I was arguing against including datum references in the Standard Name
(though that might not have bee clear!) by pointing out how many we have. If
we go with a gener
Hello Jonathan,
I have concerns about having separate names for river, lake and sea. If you
have them for height, then the logic would extend to temperature. I have
temperature data from a boat that started in the North Sea, went up the Humber
and then up to the navigable limit of the Yorkshi
it as long as that
information is included in the definition.
Cheers, Roy.
-Original Message-
From: Jonathan Gregory [mailto:jonat...@met.reading.ac.uk] On Behalf Of
Jonathan Gregory
Sent: 23 February 2010 08:47
To: Lowry, Roy K
Cc: Jeff deLaBeaujardiere; Andrea Hardy; cf-metadata@cgd
k]
Sent: 23 February 2010 09:25
To: Lowry, Roy K
Cc: cf-metadata@cgd.ucar.edu
Subject: RE: [CF-metadata] water level with/without datum
Hi Roy,
Would simply inventing an artificial new term to represent
sea+lakes+rivers be an option here? Presumably, back in the day, there
was no word for a
Hi Nan,
Using unqualified 'water' to signify water within a water body works for me.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of Nan Galbraith
Sent: 25 February 2010 16:47
To: Jonathan Gregory
Cc: John Gra
Dear Jonathan,
The existing wave period terms could be considered different geophysical
quantities (they're periods pertaining to specific parts of the wave energy
spectrum) and I would advise against using them in Jeff's case. I therefore
support his suggestion at add sea_surface_wave_mean_pe
Hello Alison,
Some (ended up quite a lot) comments. Any discussion of this lot could well
descend into chaos. Could I suggest that responses are made separately to each
of the 11 numbered comments so we end up with 11 threads that individually
stand some chance of closure.
(1) I don't under
Thanks Alison,
The one point I think you have possibly misunderstood is the one about
'miscellaneous'. It's not the word, so much as the possibility of the concept
having meaning that changes with time that worries me. This can be addressed
through the definition by a statement that 'miscella
Dear All,
A further watch-point is that a some character mappings convert the micro sign
to 'm' which has caused us some embarrassing errors in the past when
interpreted as 'milli'. As Eizi so comprehensively points out, we either need
to either ensure that character encodings are either expli
Hi Nan,
The following are the past version dates I have for the version changes since I
started following CF Standard Names closely, which was in September 2006 when
version 2 was current:
VERSION TO_CHAR(VRS_DATE,'-MM-DD')
3 "2007-02-20"
4 "2007-03-13"
5 "2007-05-15"
6
calar
co-ordinate variable as John suggests is something I'm not sure about. Anybody
any preferences?
Cheers, Roy.
-Original Message-
From: alison.pamm...@stfc.ac.uk [mailto:alison.pamm...@stfc.ac.uk]
Sent: 23 April 2010 13:39
To: cf-metadata@cgd.ucar.edu; Lowry, Roy K; jo
Hello Philip/Alison
Couple of points.
(1) Radicals are more of relevance to the atmosphere than water bodies so I
don't think confusion between them and ions is an issue. As standard names are
becoming incorporated into URLs, the '+' character is best avoided. Also
without semantic support (
Dear All,
The 'fast track' approach being discussed has promise and is pretty much in
line with the ISO vocabulary model (in which terms have proposed, accepted,
deprecated or deleted) used in resources like the GEMET thesaurus. However,
there are important details to consider, such as version
Hello Jonathan,
The term 'statistics' has a slightly different meaning for wave data.
Essentially, what wave instrumentation does is record vertical displacement of
the sea surface at very high frequency for a period of say ten minutes.
Spectral analysis techniques are then used to derive 'sta
Hello Andrew and Jonathan,
First, I think this discussion is heading towards reasonable compromise
avoiding my concerns of a massive proliferation in cell methods and the pitfall
of concepts that are explainable in the context of their parameter, but
meaningless in isolation (e.g. explaining mo
Dear All,
I'd just like to reinforce John's last point that the semantics of 'instrument'
and 'platform' are becoming blurred in these discussions. From my perspective
as one who has to map to CF datasets I would prefer it if the semantics of
terms used in Standard Names had a universally unde
Dear All,
As others have said, I think this debate is irrelevant as there should be no
need for string timestamps in NetCDF. Providing a Standard Name only encourages
what I consider to be bad practice.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf
Hi John,
ISO-8601 allows timestamps to any resolution from year to millisecond, so 2010,
2010-10, 2010-10-20 are all valid so the string can be any length from 4 to 27
(e.g. 2010-10-20T14:53:00.000Z-15), unless restricted through an 8601 profile
(as many communities do)
Cheers, Roy.
-Or
l.
I'm not sure they are definitively "bad practice" in all cases.
(Regarding a technical point raised below, yes, it's a pain to represent
variable length strings in NetCDF, but there is a maximum length for
ISO8601 strings.)
Hope this helps,
Jon
-----Original Message-
Hi Jon,
Full ISO8601 does carry time zone expressed in hours relative to UT in the
syntax Zx where x is the offset from Zulu at the right-hand end of the string.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf
Sorry, didn't read your original message thoroughly enough. Must stop doing
e-mail before waking up properly.
Cheers, Roy.
-Original Message-
From: Jon Blower [mailto:j.d.blo...@reading.ac.uk]
Sent: 22 October 2010 11:28
To: Lowry, Roy K
Cc: cf-metadata@cgd.ucar.edu
Subject: RE
Dear All,
I wonder how many existing CF data files would have the meaning of their time
channel changed were this suggestion to be adopted.
If I were Julia I would be reworking my data so that the time channel was true
UT. I've had so many problems in the past with local time co-ordinates.
f Of Julia Collins [colli...@nsidc.org]
Sent: 22 October 2010 17:32
To: cf-metadata@cgd.ucar.edu
Subject: Re: [CF-metadata] Interpretation of unspecified time zone (was: New
standard names for satellite obs data (timeas ISO strings))
Hi,
On Fri, 22 Oct 2010, Lowry, Roy K wrote:
> I wonder how many exist
Hi Alison,
If a community uses the term 'diameter' then I would stick with that and in our
experience with both sediment grain-size and aerosol size spectra 'diameter' is
the word exclusively used.
Cheers, Roy.
-Original Message-
From: cf-metadata-boun...@cgd.ucar.edu
[mailto:cf-metad
Hello Jonathan,
I had the same gut reaction as you and almost came up with the same response
until I read the definition "Content indicates a quantity per unit area" on 369
Standard Names. So, perhaps Olivier is being consistent and tha handful of
'per_unit_area" Standard Names are not.
Cheer
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