Re: [CF-metadata] proposed migration of these discussions to GitHub

2019-04-05 Thread Mike Grant
[I'm personally happy with Github, but count as an interested person / long time lurker!] A lot of open source projects resolve this problem by splitting the conversation into two mailing lists. One is typically "-devel" for developers (in this case, anyone working on the standard or

Re: [CF-metadata] Plate Carrée

2014-06-27 Thread Mike Grant
On 27/06/14 11:56, Maik Riechert wrote: is the plate carrée projection really missing as a grid mapping in the CF conventions? If so, why? I suspect a lot of people just use the latitude_longitude mapping as a proxy for this and otherwise don't worry about it. It probably would be better to

Re: [CF-metadata] Editing/publishing workflow

2014-03-12 Thread Mike Grant
On 12/03/14 17:41, Jeffrey F. Painter wrote: You may have gathered that I don't think the highlighting system has worked as well as originally intended, so I would welcome a change - whether or not we continue to use DocBook, etc. As someone that reasonably often consults the conventions

Re: [CF-metadata] Ocean colour standard names

2013-12-20 Thread Mike Grant
Hi Alison, On 20/12/13 11:50, Frederic MELIN wrote: For the rest, I'd recommend: volume_absorption_coefficient_of_radiative_flux_in_sea_water_due_to_dissolved_organic_matter_and_non_pigmented_particles; ... is the sum of the other 2, and is a standard satellite product (the other 2 terms

Re: [CF-metadata] swath format -- not just for satellite, but for sonar?

2013-11-13 Thread Mike Grant
On 11/11/13 18:47, John Graybeal wrote: I'm looking for the latest status of presenting swath data in CF. I I think most user-level satellite swath data follows the principle of providing full (or at least tie-point) lat/long grids, e.g.

Re: [CF-metadata] how to capture horizontal spatial resolution of imagery in a standard way

2013-05-01 Thread Mike Grant
Hi Randy, Thanks for the explanation - that cleared things up a lot for me and I certainly see what you're getting at now. I liked the resolution proposal and could see us and many others using that too. I think this requires no standard name and is just an addition to the cell methods part of

Re: [CF-metadata] how to capture horizontal spatial resolution of imagery in a standard way

2013-04-30 Thread Mike Grant
Hi Randy, On 30/04/13 19:33, Randy Horne wrote: Although it works, using boundary variables to capture the horizontal spatial resolution of imagery is inefficient. Using cell methods with the keyword interval could be used to capture the horizontal spatial resolution of imagery, but it

Re: [CF-metadata] NetCDF (and CF) Uncertainty Conventions discussion list

2012-12-17 Thread Mike Grant
On 12/12/2012 11:06 PM, Steve Hankin wrote: the topic of how to encode uncertainties is opening up within OGC in the attached email. The work under discussion here builds on CF 1.5 as a normative standard and contains a CF 1.5 data model in UML (Figure 1). At a glance it is apparent that

Re: [CF-metadata] Adding palettes to the data

2012-10-23 Thread Mike Grant
On 28/09/12 12:40, Martin Raspaud wrote: Within this context, we would like to associate a palette of (rgb) .. However, I can't find information on how to do this in netcdf and more particularly within CF. This is really a presentation issue and, as such, I don't think it's been addressed

Re: [CF-metadata] sinusoidal projection

2012-06-18 Thread Mike Grant
Hi Jonathan, On 13/06/12 14:40, Jonathan Gregory wrote: There is an open CF trac ticket, opened by Etienne Tourigny https://cf-pcmdi.llnl.gov/trac/ticket/77 which proposes to add the sinusoidal projection to the list of CF grid mappings. This is a simple change to make. It would be helpful if

Re: [CF-metadata] sinusoidal projection

2012-06-18 Thread Mike Grant
On 06/18/2012 10:44 PM, Hoang, Anthony T. wrote: I’ve fixed the mail problem………Please try requesting a trac account now. All worked perfectly, thanks very much! Cheers, Mike. br / hr / pfont face=Arial size=1 Plymouth Marine Laboratorybr / Registered Office: br / Prospect Placebr / The

Re: [CF-metadata] netcdf4 and CF-1.6

2012-03-30 Thread Mike Grant
On 30/03/12 15:01, Corey Bettenhausen wrote: To the CF group in general, how can I help to introduce groups into the CF conventions? And also extend CF to HDF5? What's the first step I need to take? My experience is that coming up with a proposal or two is a good start, as it will often get

Re: [CF-metadata] netcdf4 and CF-1.6

2012-03-15 Thread Mike Grant
Hi Corey, Just to give you a bite on the netCDF4 issue, I don't see any reason why CF couldn't bless netcdf4 with all elements in a root group, though one could reasonably argue this isn't really any improvement on using the classic model. It would be more useful (imho) to recommend that all

Re: [CF-metadata] netcdf4 and CF-1.6

2012-03-13 Thread Mike Grant
Hi Cauquil, On 12/03/12 15:29, Cauquil Pascal (Capgemini) wrote: We intend to use netcdf4 for this new program to use compression and group possibilities but, we want also to be compliant with CF-1.6 convention. Do you think it is a possible to display CF-1.6 compliant using these 2

Re: [CF-metadata] [cf-satellite] Sharing quality flags amongmultiple variables

2011-11-02 Thread Mike Grant
Now I *think* I mostly understand the problem - thanks for the summary explanation, Jonathan, and apologies for the earlier missing-the-point :) However, I probably still need a bit more straightening out or have missed the point again.. I'd be grateful to understand more about why one needs a

Re: [CF-metadata] [cf-satellite] Sharing quality flags amongmultiple variables

2011-11-02 Thread Mike Grant
On 02/11/11 20:20, Mike Grant wrote: I'll put that in another email as this is already way too long and I suspect it's unworkable ;) Trying to address wanting different standard_names, shared or different flag_meanings and shared or different flag data.. Extend the idea in Jonathan's #2

Re: [CF-metadata] New standard names for satellite obs data

2010-10-21 Thread Mike Grant
Hi Jon, Thanks for the helpful summary :) We have had similar issues with handling data that represents time periods, and it'd certainly be good to find some way to address that. On 21/10/10 15:28, Jon Blower wrote: 1. Steve and Roy both asked (I think) why we can't have a more general notion

Re: [CF-metadata] Default datum for latitude and longitude?

2010-04-19 Thread Mike Grant
On 19/04/10 15:43, Jonathan Blower wrote: specification, which datum should be assumed? Spherical Earth? WGS84? If you're picking one at random, I'd go for WGS84 - that's a pretty safe bet for a lot of remote sensed and GPS related data. Cheers, Mike.