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XML schema and Schematron for aviation weather data exchange
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Changes to Space Weather Information #308

Closed amilan17 closed 2 months ago

amilan17 commented 1 year ago

Initial request

  1. Relevant discussion at METP/5:

    (METP/5 - WP/2302, Appendix C, PANS-MET, Appendix 7) Rationale for the proposed revisions to Annex 3 and PANS-MET: a) Moved the “Intensity” from the “Effect” line to the “Observed” and “Forecast” lines, which allows for the intensity to change within an advisory as well as allows for multiple intensities, thus reduces the number of advisories in effect at one time. b) Allow for an updated advisory to replace up to four existing advisories. c) Added “NIGHTSIDE” and renamed “DAYLIGHT SIDE” to “DAY SIDE” d) Updated the template and examples in the Table. e) Removed the “minutes” from latitude and longitude since this accuracy is beyond the state of the science. f) Editorial changes to footnote 1 for TEST and EXER. g) Clarified that altitude information only applies to radiation events. h) Clarified that the end point of a polygon is a repeat of the start point. i) With the agreement that MET products in IWXXM form are not constrained to limits of coordinates, made note that advisories disseminated in abbreviated plain language should keep coordinates to a minimum of seven. This same note has been added to other similar MET products.

  2. See the extracted Proposed amendments to the restructured Annex 3 in working paper METP/5-WP/2302.

  3. See Examples A7-3 to A7-5.

Amendment details

As described in the following post.

Comments

No response

Requestor(s)

METP / Amendment 81

Stakeholder(s)

Enter list of stakeholder(s).

Publication(s)

Example: Manual on Codes (WMO-No. 306), Volume I.3

Expected impact of change

No response

Collaborators

No response

References

No response

Validation

No response

blchoy commented 11 months ago

See Table A7-3. Template for advisory message for space weather information for the revised TAC template and Examples A7-4 and A7-5 for the updated examples.

Summary of changes made (see committed changes)

  1. Element 5 - Space weather effect:

    • A new enumeration SpaceWeatherEffect containing only the effects but not associated intensities has been created.

  2. Element 7 - Number(s) of advisories being replaced:

    • The multiplicity of iwxxm:replacedAdvisoryNumber has been changed from [0..1] to [0..4].

  3. Element 8 - Observed or expected space weather event:

    • A new classes SpaceWeatherIntensityAndRegion has been added to represent intensity and region at the same time.
    • Codelist iwxxm:SpaceWeatherLocation has been amended (DAYLIGHT_SIDE -> DAYSIDE and add NIGHTSIDE).
    • The notes of iwxxm:SpaceWeatherLocation has been revised to remind that altitude of space weather phenomena shall only apply to radiation events.

  4. In view of the changes the version number for SWA shall advance from 3.0.1 to 3.1.0.

blchoy commented 2 months ago

Included in IWXXM 2025-2RC1.