Re: [CF-metadata] [cf-convention/cf-conventions] Proposal: Example for Independent Latitude, Longitude, Non-spatiotemporal Variable, and Time Axes (#249)

2020-03-02 Thread JonathanGregory
I agree that it would be a good idea to add such an example. Thanks. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/cf-convention/cf-conventions/issues/249#issuecomment-593550945 This list forwards

Re: [CF-metadata] [cf-convention/cf-conventions] Add direction attribute for coordinate axis (#247)

2020-03-02 Thread JonathanGregory
For horizontal coordinates, the CF `axis` attribute should be used to indicate which axis is `X` and which `Y`, where `X` is "like" longitude and `Y` "like" latitude. This correspondence can't really be more than a rough guide, for reasons mentioned above. Doesn't the `axis` attribute meet the

Re: [CF-metadata] [cf-convention/cf-conventions] Add unit_conversion_factor for units in coordinate axis to represent the number of SI standard units per unit (i.e. meters). (#248)

2020-03-02 Thread Alan D. Snow
I think that is all I have to offer for clarifying information on this issue. I will close it now since it seems that :-1: is the consensus here on the proposal. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub:

Re: [CF-metadata] [cf-convention/cf-conventions] Add unit_conversion_factor for units in coordinate axis to represent the number of SI standard units per unit (i.e. meters). (#248)

2020-03-02 Thread Alan D. Snow
Closed #248. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/cf-convention/cf-conventions/issues/248#event-3088905534 This list forwards relevant notifications from Github. It is distinct from

Re: [CF-metadata] [cf-convention/cf-conventions] Add new integer types to CF (#243)

2020-03-02 Thread JimBiardCics
@ethanrd I like your verbiage. I think you could simplify it a bit by saying In many situations, any integer type may be used. When the phrase "integer type" is used in this document, it should be understood to mean **`byte`**, **`unsigned byte`**, **`short`**, **`unsigned short`**, **`int`**,

Re: [CF-metadata] [cf-convention/cf-conventions] Add direction attribute for coordinate axis (#247)

2020-03-02 Thread JimBiardCics
As far as the temporal axis goes, CF is quite strongly "future positive". It would take a lot of work to change this. I expect that the paleoclimate people would appreciate the ability to do "past positive" time coordinates that would use a (currently non-existent) calendar appropriate to their

Re: [CF-metadata] [cf-convention/cf-conventions] Add direction attribute for coordinate axis (#247)

2020-03-02 Thread JimBiardCics
@snowman2 I am generally opposed to this proposal as it stands. If we want to adopt some sort of convention about this sort of thing, I suggest it be something like what I've written below. For spatial coordinate systems, add an attribute named "fluffy" (this is a placeholder name — I'm unable

Re: [CF-metadata] [cf-convention/cf-conventions] Add unit_conversion_factor for units in coordinate axis to represent the number of SI standard units per unit (i.e. meters). (#248)

2020-03-02 Thread JimBiardCics
@snowman2 It seems pretty clear that this is a UDUNITS issue, not a CF issue. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/cf-convention/cf-conventions/issues/248#issuecomment-593486026 This list

Re: [CF-metadata] [cf-convention/cf-conventions] Add unit_conversion_factor for units in coordinate axis to represent the number of SI standard units per unit (i.e. meters). (#248)

2020-03-02 Thread Alan D. Snow
@semmerson, you can go to http://www.epsg-registry.org/ and filter by the unit of measure type. For example: ![image](https://user-images.githubusercontent.com/8699967/75690353-4e67c880-5c68-11ea-90c2-e8ca881ad1ed.png) -- You are receiving this because you are subscribed to this thread.

Re: [CF-metadata] [cf-convention/cf-conventions] Updating definition of coordinate variable to account for NUG changes (#174)

2020-03-02 Thread JimBiardCics
@martinjuckes The NUG section does not make statements that take the form of requirements. It is a subtle and strange component of English language usage in standards and requirements documents. There are quite specific meanings applied to certain words. They are: * shall - It must be done or

Re: [CF-metadata] [cf-convention/cf-conventions] Add unit_conversion_factor for units in coordinate axis to represent the number of SI standard units per unit (i.e. meters). (#248)

2020-03-02 Thread Steven Emmerson
@snowman2, I'm the UDUNITS developer. I've never heard of these units. Do you have a reference for them (other than the GitHub repository)? -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub:

[CF-metadata] [cf-convention/cf-conventions] Proposal: Example for Independent Latitude, Longitude, Non-spatiotemporal Variable, and Time Axes (#249)

2020-03-02 Thread GeyerB
# Title Example for Independent Latitude, Longitude, Non-spatiotemporal Variable, and Time Axes # Moderator @GeyerB # Moderator Status Review [last updated: 20/03/02] no update yet # Requirement Summary Analogue to chapter `5.1. Independent Latitude, Longitude, Vertical, and Time Axes`, where