[urn] Re: 2nd request to register URN for WMO

Dear Peter and Dale,

Thank you kindly for your guidance and advice. I went through the exercise of updating the request (see below my email signature), but I'd like to point out that the intent of the request is to have an official WMO URN namespace, not to register a complete URN schema. Such that, the metadata identifier can be encoded as "urn:wmo" instead of the previous practice of "urn:wmo-x".  Is it possible to just register a WMO URN namespace without the schema details or can you provide information about another mechanism for this request? Tom Kralidis, the chair of the WMO Expert Team on Metadata Standards, is cc'd so he can contribute to the upcoming emails.


Best regards, Anna Milan

Scientific Officer

WIS Section, Data and Prediction System (DPS) Division

Infrastructure Department, WMO

https://community.wmo.int/activity-areas/wis

 [cid:2ef4981f-aeaa-43d9-abd3-6139a613a985]


**DRAFT**
Namespace Identifier:  wmo
   Version:  1
   Date:  2024-02-28

Registrant:
   World Meteorological Organization
   7bis, avenue de la Paix, Case postale No. 2300 ·
   1211 Geneva Switzerland
   https://wmo.int/

Registrant Contact:
   Anna Milan
   [email protected]


Purpose:  The WMO URN is used to formulate identifiers in discovery metadata records describing datasets exchanged internationally via the WMO Information System 2.0 (WIS2). The requirements and syntax are specified by the WMO Core Metadata Profile (Version 2), available in the Manual on the WMO Information System (WMO-No. 1060), Volume II - Appendix F (https://library.wmo.int/idurl/4/68731).

Syntax:
The identifier in the discovery metadata shall have the following notation:

urn:wmo:md:{centre_id}:{local_identifier}

where

  *
"urn:wmo:md" is a fixed value
  *
"centre-id" refers to a code list of WIS2 Nodes and Global Services
  *
"local-identifier" is a text string defined by the publisher.

Examples:

urn:wmo:md:ca-eccc-msc:weather.observations.swob-realtime
urn:wmo:md:de-dwd:icon-eps.ALL
urn:wmo:md:fr-meteofrance-global-broker:gb

Assignment:

The "centre-id" codes are defined through the WIS2 registration process when data publishers set up a WIS2 Node for data exchange or when service providers set up a global service in WIS2. The "centre-id" code list is available at http://codes.wmo.int/wis/topic-hierarchy/centre-id.

The "local-identifier" is free text and the WIS2 Node manages the uniqueness of the values within the context of that WIS2 Node.

The identifiers are assigned to specific datasets by the WIS2 Nodes, describe by the respective discovery metadata records that are published in WIS2 Global Discovery Catalogues (GDCs). The GDCs validate the identifier for compliance to the rules of syntax and for uniqueness.

Security and Privacy:  As far as I know, there are no issues with security and privacy.
   Interoperability:  As far as I know, there are no issues with interoperability.
   Resolution:  At this time, there are no plans to manage a resolution service.
   Documentation:
   Additional Information:
   Revision Information:

****





________________________________
From: Anna Milan <[email protected]>
Sent: Wednesday, February 19, 2025 09:11
To: Peter Saint-Andre <[email protected]>; [email protected] <[email protected]>
Subject: Re: [urn] 2nd request to register URN for WMO

Dear Peter, Thank you for your response and advice. I'll send a revised version soon.


Best regards, Anna Milan

Scientific Officer

WIS Branch, Infrastructure Department

World Meteorological Organization

https://community.wmo.int/activity-areas/wis

 [cid:cec97367-a8b8-48b1-a79d-0a09c7be366f]




________________________________
From: Peter Saint-Andre <[email protected]>
Sent: Tuesday, February 18, 2025 19:05
To: Anna Milan <[email protected]>; [email protected] <[email protected]>
Subject: Re: [urn] 2nd request to register URN for WMO

[You don't often get email from [email protected]. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]

On 2/18/25 3:48 AM, Anna Milan wrote:
> Dear IETF, I'm resending this request as I haven't received any response.

Hi Anna,

I'm sorry if you didn't receive a reply to your previous message. I
don't see anything about WMO in the mailing list archives, but I might
be missing something. Perhaps your previous message didn't go through?

In any case, here is some feedback on your registration request...

> ----
> *Namespace Identifier:*  wmo *Version:*  1 *Date:*  2024-11-26
> *Registrant: *
>    World Meteorological Organization
>    7bis, avenue de la Paix, Case postale No. 2300 ·
>    1211 Geneva Switzerland
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwmo.int%2F&data=05%7C02%7Camilan%40wmo.int%7C6aad20d8cc2941ad296f08dd5046e106%7Ceaa6be54468740c49827c044bd8e8d3c%7C0%7C0%7C638754987552824842%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=o4i3AafpWE241VkxxJldKVOJnSZN0KeIQtxhZO8439s%3D&reserved=0<https://wmo.int/> <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwmo.int%2F&data=05%7C02%7Camilan%40wmo.int%7C6aad20d8cc2941ad296f08dd5046e106%7Ceaa6be54468740c49827c044bd8e8d3c%7C0%7C0%7C638754987552854732%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=ui%2FmEwUc1wcUOWtpSvh1jJEBcAgSFE4WoVgUpNKBjW0%3D&reserved=0<https://wmo.int/>>
>
> *Registrant Contact*:
>     Anna Milan
>     [email protected]

In general, to future-proof the registration we like to see a
non-personal email address, such as [email protected] or [email protected]
(those are merely examples).

> *Purpose*:  The use of the WMO URN is defined in the WMO Core Metadata
> Profile standard to uniquely identify metadata records that describe
> datasets exchanged internationally via the WMO Information System.

> *Syntax*:  Not applicable (/please let me know if need to add something
> here/)

Every namespace specific string has some kind of syntax. You can look at
existing registrations to see how other registrants have handled this in
the past. A good example is the ISBN namespace:

https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.iana.org%2Fassignments%2Furn-formal%2Fisbn&data=05%7C02%7Camilan%40wmo.int%7C6aad20d8cc2941ad296f08dd5046e106%7Ceaa6be54468740c49827c044bd8e8d3c%7C0%7C0%7C638754987552873961%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=fh4pWclwfokVQc3g3K3t5lbqBdd7gdaHkIKE6UvI01U%3D&reserved=0<https://www.iana.org/assignments/urn-formal/isbn>

It does seem that WMO has some syntax in mind, because I found the
following examples:

urn:wmo:md:ca-eccc-msc:weather.observations.swob-realtime
urn:wmo:md:de-dwd:icon-eps.ALL
urn:wmo:md:fr-meteofrance-global-broker:gb

Copied from
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwmo-im.github.io%2Fwcmp2%2Fstandard%2Fwcmp2-STABLE.html%23examples&data=05%7C02%7Camilan%40wmo.int%7C6aad20d8cc2941ad296f08dd5046e106%7Ceaa6be54468740c49827c044bd8e8d3c%7C0%7C0%7C638754987552892279%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=3qYN4RH7SQnrKhTo1%2FHwgBOi21yePIK1PGB9hcDf3f8%3D&reserved=0<https://wmo-im.github.io/wcmp2/standard/wcmp2-STABLE.html#examples>

*Assignment*:  Completely open

As described in RFC 8141 <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.rfc-editor.org%2Frfc%2Frfc8141&data=05%7C02%7Camilan%40wmo.int%7C6aad20d8cc2941ad296f08dd5046e106%7Ceaa6be54468740c49827c044bd8e8d3c%7C0%7C0%7C638754987552910495%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=0ElXjNkmkVRdoCZE43EBVU%2BO2FD%2B%2BcMHGmsDPJ4iLys%3D&reserved=0<https://www.rfc-editor.org/rfc/rfc8141>>
"assignment of a URN is a managed process". How does the WMO plan to
assign or approve URNs in the urn:wmo namespace? To me, "completely
open" sounds like "anything goes" and I doubt that's how the WMO
operates. :-)

> *Security and Privacy:*  As far as
> I know, there are no issues with security and privacy.
> *Interoperability*:  As far as I know, there are no issues with
> interoperability. *Resolution*:  At this time, there are no plans to
> manage a resolution service. *Documentation*:

If the WMO Core Metadata Profile standard is available online, it would
be good to include a URL here. The link I found at github.io is probably
not stable, but https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcommunity.wmo.int%2Fen%2Factivity-areas%2Fwis%2Fwcmp2&data=05%7C02%7Camilan%40wmo.int%7C6aad20d8cc2941ad296f08dd5046e106%7Ceaa6be54468740c49827c044bd8e8d3c%7C0%7C0%7C638754987552929638%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=B68rMqFII12slO4pozwbuxuGg4d8w12Zf4jSAxTnZYc%3D&reserved=0<https://community.wmo.int/en/activity-areas/wis/wcmp2>
might be better.

Best Regards,

Peter

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