[CF-metadata] Proposal for standard names: radiance and irradiance as measured from satellite

2014-11-12 Thread Maarten Sneep
nterval over which the quantity is integrated. I'll leave the addition of these quantities to communities that actually use them, IASI on MetOp comes to mind. Kind regards, Maarten Sneep -- KNMI E: maarten.sn...@knmi.nl ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] standard names for surface aerosol optical properties

2014-11-25 Thread Maarten Sneep
questioning the wisdom of including 'solar' in the name. I'm flexible, and a less specific name is fine with me. Do I need to take different actions to start the process? Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 _

Re: [CF-metadata] Proposal for standard names: radiance and irradiance as measured from satellite

2014-11-26 Thread Maarten Sneep
nt zenith angle, azimuth angles) to a variable that needs this. My earlier comments on units and coordinate variables apply to this name also. If necessary, we can start a new thread on the mailing list to discuss the coordinate issue more thoroughly. Some dis

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2014-11-27 Thread Maarten Sneep
her 1024x1024, etc ? Probably not in UDUnits, but there is a different name for those "slightly more than 1000, but let's treat it as 'kilo' anyway" units. more info on http://en.wikipedia.org/wiki/Kibibyte Best, Maarten

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-06 Thread Maarten Sneep
s. Molecules and photons are an exception in my view because there are large datasets out there that use explicit molecules and photons for these 'things'. Best, Maarten Sneep [1] https://what-if.xkcd.com/4/ -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Maarten Sneep
only serve to hinder the transition. Kind regards, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] New UDUnits units for information: "byte" and "octet"

2015-01-07 Thread Maarten Sneep
significantly. It would be good to help the transition from photons to mol (photons) as well, which was a request that started this whole discussion in the first place. Does this make the argument clearer? Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 __

[CF-metadata] Vertical coordinates & boundaries

2015-02-19 Thread Maarten Sneep
pecified on the interfaces rather than on the layers themselves, ans where a coordinate variable doesn't provide the detail we need? Kind regards, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metada

Re: [CF-metadata] Vertical coordinates & boundaries

2015-02-19 Thread Maarten Sneep
ce. I can see why he hesitates to use this method, but I think this is indeed the way forward. Kind regards, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] Vertical coordinates & boundaries

2015-02-19 Thread Maarten Sneep
On 19-02-15 18:56, Jim Biard wrote: Maarten, It would, instead be something like this: dimensions: lon = 360; lat = 180; layer = 18; vertices = 2; variables: float lat(lat); lat:long_name = "latitude"; lat:units = "degrees_north"; lat:bounds = "lat_bnds"; floa

Re: [CF-metadata] Vertical coordinates & boundaries

2015-02-20 Thread Maarten Sneep
ad is there, but at least it is a lot smaller. For irregular grids, this overhead is large, and adds variables no user will ever need. I'll think if I can think of a neat solution that can be used in CF2. Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 _

Re: [CF-metadata] Vertical coordinates & boundaries

2015-02-20 Thread Maarten Sneep
where a 3D dummy variable is needed. And perhaps CF 2.0 is an opportunity to address this. Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] Applying multiple conventions

2015-03-06 Thread Maarten Sneep
r commas (if a convention name contains blanks). Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] How to define time coordinate in GPS?

2015-04-28 Thread Maarten Sneep
k out when the observation was taken with the detail they require. Oh, funny reference for the discussion: http://xkcd.com/1514/ Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] Proposal for standard names: radiance and irradiance as measured from satellite

2015-06-29 Thread Maarten Sneep
noticed that the status of this proposal is still "Active (not on list or rejected)". Shouldn't ehy have been marked "Under discussion" by now? Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

[CF-metadata] proposal for new standard names for various trace gas quantities

2015-07-10 Thread Maarten Sneep
atmosphere. For the content between specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The construction "atmosphere_mole_content_of_X" means the vertically integrated number of moles of X above a unit area. The chemical formula

[CF-metadata] A few descriptions seem 'off'

2015-07-10 Thread Maarten Sneep
ory of these quantities in the standard name list. Can someone advise how to proceed? Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] proposal for new standard names for various trace gas quantities

2015-07-14 Thread Maarten Sneep
On 10/07/15 15:31, Maarten Sneep wrote: Hi, Below are a few quantities that I'd like to define standard_name values for. Both the structure of the names, and the elements in the descriptions are taken from existing standard_name values. Point of contention may be the definition of water

Re: [CF-metadata] albedo, air pressure definitions

2015-08-10 Thread Maarten Sneep
On 07/08/15 21:15, Nan Galbraith wrote: Hi All, and happy Friday. It's been almost a month since Maarten Sneep posted 'A few definitions seem off' and there have been just a couple of replies. Can we please add definitions for albedo and air_pressure to the standard names t

Re: [CF-metadata] albedo, air pressure definitions

2015-08-27 Thread Maarten Sneep
27;ll let others assemble a full description for the standard_name list. Best, Maarten On 8/20/15 1:22 PM, Maarten Sneep wrote: On 10/08/15 19:37, Maarten Sneep wrote: On 07/08/15 21:15, Nan Galbraith wrote: Hi All, and happy Friday. It's been almost a month since Maarten Sneep pos

[CF-metadata] New standard_name values for some cloud and aerosol related variables

2015-09-29 Thread Maarten Sneep
Hi, I have the following 5 new standard_name values for you to consider. I'm sure that the unfinished business of 'albedo' will come back to bite me here. Best, Maarten Name: uv_aerosol_index Description: UV means ultraviolet radiation. The UV-Aerosol Index is a UV colour index that repre

Re: [CF-metadata] New standard_name values for some cloud and aerosol related variables

2015-09-30 Thread Maarten Sneep
the opposite. What do you suggest? cloud_albedo_assuming_full_cloud_cover Name: cloud_optical_centroid_pressure_assuming_cloud_area_fraction_of_1 Earlier comments apply. Which combined leads me to: air_pressure_at_cloud_optical_centroid_assuming_full_cloud_cover Best, Maarten Sneep

Re: [CF-metadata] New standard_name values for some cloud and aerosol related variables

2015-10-01 Thread Maarten Sneep
will be useful in future to have a phrase for this, which we currently lack, as you say. I'm not a native speaker, so I don't think I'm the one to pass judgement on matters of the English language. "assuming_complete_cloud_cover" has my slight preference. Best, Maart

Re: [CF-metadata] New standard_name values for some cloud and aerosol related variables

2015-10-01 Thread Maarten Sneep
On 01/10/15 13:44, Andreas Hilboll wrote: On 01.10.2015 13:14, Maarten Sneep wrote: On 30/09/15 23:33, Jonathan Gregory wrote: There is one issue left: the two wavelengths used in the derivation of the 'residue' (older, even more vague name than ultraviolet_aerosol_index) must

Re: [CF-metadata] New standard_name values for some cloud and aerosol related variables

2015-10-01 Thread Maarten Sneep
nds fine to me), but because of the correspondence with assuming_clear_sky. But others may disagree. If there are no replies in a week or so, we'll go with assuming_completely_cloudy_sky Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___

[CF-metadata] standard name requests

2016-03-10 Thread Maarten Sneep
de scalar coordinate variables with standard names of "relative_humidity" and "air_temperature". The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity n

Re: [CF-metadata] standard name requests

2016-03-10 Thread Maarten Sneep
es look fine to me. OK. Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] [Hdf-forum] Detecting netCDF versus HDF5 -- PROPOSED SOLUTIONS --REQUEST FOR COMMENTS

2016-04-21 Thread Maarten Sneep
ficient, but neither are memory leaks deep in netCDF. Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] Support for compound data types

2016-07-04 Thread Maarten Sneep
cuments/level-2-products http://www.tropomi.eu/science/level-2-products (the first link contains documentation, the second has (pre-launch) sample products). Best, Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___

[CF-metadata] Standard name proposal related to methane, water vapor, carbon monoxide, semi-heavy water, and nitrogen dioxide.

2018-02-23 Thread Maarten Sneep
ween specified levels in the atmosphere, standard names including "content_of_atmosphere_layer" are used. The construction "atmosphere_mole_content_of_X" means the vertically integrated number of moles of X above a unit area. The chemical formula for nitro

Re: [CF-metadata] CF conventions and netCDF4 groups

2018-03-26 Thread Maarten Sneep
benefit most from the L1B structure. See http://www.tropomi.eu/data-products/level-1 specifically the IODS. There will be an update of this document, related specifically to the references. Kind regards, Maarten Sneep >> -Original Message- >> From: CF-metadata [mailto:cf-met

Re: [CF-metadata] CF conventions and netCDF4 groups

2018-03-26 Thread Maarten Sneep
uld I duplicate the signal metadata such as unit here? >> >> The group structure is helpful, because its structure improves >> self-descriptiveness, I feel. I guess the structure is also a form of >> metadata. But >> perhaps it is considered out-of-scope for the CF conventions? >> >> >> Best, >> >> Erik >> >> > Maarten Sneep -- KNMI T: 030 2206747 E: maarten.sn...@knmi.nl R: A2.14 ___ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

Re: [CF-metadata] Standard name proposal related to methane, water vapor, carbon monoxide, semi-heavy water, and nitrogen dioxide.

2018-04-06 Thread Maarten Sneep
Hi, I haven't heard anything after sending this in. Can these names be considered for inclusion in the standard_name list? Kind regards, Maarten Sneep On 23/02/18 15:04, Maarten Sneep wrote: > Hi, > > I'd like to propose the following standard names: > > * atmospher

Re: [CF-metadata] Standard name proposal related to methane, water vapor, carbon monoxide, semi-heavy water, and nitrogen dioxide.

2018-04-06 Thread Maarten Sneep
"containing_18O" is for H_2(18-O). That modification is fine with me if the CMIP6 proposal gets through. If that proposal gets through with modifications, then I prefer to be consistent with those modifications as well. Kind regards, Maarten > > From