Proposal for new StationXML standards and miniSEED + Source Identifiers documentation

[Wayne Crawford]

Dear Working Group 2 members,

Please find attached a document on marine seismology data/metadata standards, based on the work of WG5’s Action Committee on Marine seismology data

from 2023-2025, and discussed with WGs 2 and 5 during the 2025 Lisbon FDSN Meeting.

Section 2 contains specific requests for changes to FDSN standards or documentation:

• Section 2.1: Additions to “Source Identifiers” documentation,  for Seismometer channel subsource codes
• Section 2.2: New StationXML elements:
• 2.2.1: <ClockDrift>
• 2.2.2: <Leveler>
• Section 2.3:  Additions to “miniSEED” documentation, for clock drift correction, unmeasured clock drift where significant drift is expected, and leap-second corrections.

We hope that you find these requested changes pertinent and implementable.  If you judge any of them to be inappropriate for official standards or documentation, please tell us.

Best regards

The FDSN Working Group 5 Action Group on marine seismology standards

_______________________________

Wayne Crawford

CNRS Researcher

Bureau 341

Institut de Physique du Globe de Paris

1, rue Jussieu

75238 Paris Cedex 05

+33 6 14 42 77 70

[Kästli Philipp]

Dear Wayne, all,

Do you popose to add these XML elements to a new version (e.g. 1.3) of stationXML by defining them in the stationXML's XSD, or shall they be defined in their own namespace and added to current stationXML 1.2 documents?

Thanks, and best regards

Philipp 

----------------------

Philipp Kästli

Swiss Seismological Service

---

From: Wayne Crawford <craw...@ipgp.fr>
Sent: Thursday, June 11, 2026 5:03 PM
To: fdsn...@fdsn.org <fdsn...@fdsn.org>
Cc: fdsn_obs_...@groupes.renater.fr <fdsn_obs_...@groupes.renater.fr>; fdsn...@fdsn.org <fdsn...@fdsn.org>
Subject: [fdsn-wg2-data] Proposal for new StationXML standards and miniSEED + Source Identifiers documentation

 

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[Wayne Crawford]

Dear Philipp,

Our idea was to integrate them into the next version of StationXML, without resorting to another namespace.  In section 3.2.2 of the document, we propose a way to put these (and other) proposed elements into current stationXML documents, using JSON coding within Comment elements.  That said, an interim solution of a separate namespace in stationXML 1.2 might allow simpler software solutions that would work with both the current and new versions: I would defer to stationXML experts on which is preferable.

Regards

Wayne

_______________________________

Wayne Crawford

CNRS Researcher

Bureau 341

Institut de Physique du Globe de Paris

1, rue Jussieu

75238 Paris Cedex 05

+33 6 14 42 77 70

On 11 June 2026 at 17:55:18, Kästli Philipp (kae...@sed.ethz.ch) wrote:

Dear Wayne, all,

Do you popose to add these XML elements to a new version (e.g. 1.3) of stationXML by defining them in the stationXML's XSD, or shall they be defined in their own namespace and added to current stationXML 1.2 documents?

Thanks, and best regards

Philipp 

----------------------

Philipp Kästli

Swiss Seismological Service

---

From: Wayne Crawford <craw...@ipgp.fr>
Sent: Thursday, June 11, 2026 5:03 PM
To: fdsn...@fdsn.org <fdsn...@fdsn.org>
Cc: fdsn_obs_...@groupes.renater.fr <fdsn_obs_...@groupes.renater.fr>; fdsn...@fdsn.org <fdsn...@fdsn.org>
Subject: [fdsn-wg2-data] Proposal for new StationXML standards and miniSEED + Source Identifiers documentation

 

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[Javier Quinteros]

Dear Wayne, dear all,

Thanks a lot on behalf of WG2. We know that you have invested a lot of
time in discussing this in WG5.
We will try to open a Call for a Review Team as soon as we can push the
pending topics that are already in the pipeline.
We will announce that in this WG2 list as soon as we can.

Thanks again to you and all the WG5!

Best,

Javier

On 11.06.26 17:03, Wayne Crawford wrote:
>
> Dear Working Group 2 members,
>
> Please find attached a document on marine seismology data/metadata
> standards, based on the work of WG5’s Action Committee on Marine
> seismology data
> from 2023-2025, and discussed with WGs 2 and 5 during the 2025 Lisbon
> FDSN Meeting.
>
> Section 2 contains specific requests for changes to FDSN standards or
> documentation:
>

> * Section 2.1: Additions to “Source Identifiers” documentation,  for
> Seismometer channel subsource codes
> * Section 2.2: New StationXML elements:
> o 2.2.1: <ClockDrift>
> o 2.2.2: <Leveler>
> * Section 2.3:  Additions to “miniSEED” documentation, for clock drift

> correction, unmeasured clock drift where significant drift is
> expected, and leap-second corrections.
>
>
> We hope that you find these requested changes pertinent and
> implementable.  If you judge any of them to be inappropriate for
> official standards or documentation, please tell us.
>
> Best regards
> The FDSN Working Group 5 Action Group on marine seismology standards
>
> _______________________________
> Wayne Crawford
> CNRS Researcher
> Bureau 341
> Institut de Physique du Globe de Paris
> 1, rue Jussieu
> 75238 Paris Cedex 05
> +33 6 14 42 77 70
>

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> You received this message because you are subscribed to the Google
> Groups "FDSN Working Group II" group.
> To unsubscribe from this group and stop receiving emails from it, send

> an email to fdsn-wg2-dat...@fdsn.org <mailto:fdsn-wg2-
> data+uns...@fdsn.org>.

> To view this discussion visit https://groups.google.com/a/fdsn.org/d/

> msgid/fdsn-wg2-data/etPan.6a2ace57.4866c68f.bb62%40ipgp.fr <https://
> groups.google.com/a/fdsn.org/d/msgid/fdsn-wg2-data/
> etPan.6a2ace57.4866c68f.bb62%40ipgp.fr?utm_medium=email&utm_source=footer>.

--
Javier Quinteros

wissenschaftliche:r Mitarbeiter:in | Scientist
Sektion 2.4 Seismologie | Section 2.4 Seismology

Tel.: +49 (0)331/6264-1931
Mail: jav...@gfz.de

GFZ Helmholtz-Zentrum für Geoforschung |
GFZ Helmholtz Centre for Geosciences