7th meeting of the Expert Team on Space Weather (8-9 December 2025)

7th meeting of the Expert Team on Space Weather.

Meeting documents available at ET-SWx-7

Monday 8 December 2025

Documents

12:00 UTC

1. Opening of the Session

12:00

1.1. Opening of the Session (ET-SWx Chairs and WMO)

12:05

1.2. Approval of Agenda

12:10

2. Outcomes of the Cg-Ext and its implications

12:10

Outcomes of the Cg-Ext and its implications (Albert Fischer, Director, WIGOS Division)

12:30

3. Radio frequency coordination

12:30

Updates on radio frequency coordination (Eric Allaix, Météo-France)

_A5.2

_{Contributions from ET-SWx regarding WRC 1.17 Agenda Item including: technical characteristics of SWx sensors operating ‘in the frequency bands studies under WRC AI 1.17’ and in ‘the other frequency bands’. By using a table as used in the draft recommendation for riometer protection criteria and for solar spectrometer criteria.}

Doc 3

12:50

3. WIGOS Vision update status

12:50

WIGOS Vision update status (Sid Boukabara, WIGOS Vision Update Group Chair)

13:10

Discussion on input from ET-SWx (all)

13:50

4. WIS 2.0 update

13:50

4.1 WIS 2.0 Update, including tests on data latency (Simon Elliott, EUMETSAT)


_A5.7	_{Investigate Technical Regulation wrt. link-less, data-embedded notifications through WIS2.0. (=streaming use of WIS). And to work with WIS team to provide clarity and potential corresponding revision of Regulation to assure this feature.}
_A5.8	_{Do and document a latency test of WIS2. A set of tests with varying sizes and comparing with other download methods. (needs to involve producers to know actual time of insertion). Task team to design a proper test setup.} _{Task Team on WIS2.0 testing: Simon Elliott, Kirill Kholodkov, Joaquim Costa, Kasper van Dam.}

_{Presentation given at ET-SWx-6 (Action Item 5.7): Update on WIS2 issues and WIS2 pilot (}_Kirill_):_{Doc 3.3}

4.2 WIS2.0 Pilot Project for Space Weather (Joaquim Costa, INPE)

_A5.9

_{Revise and continue the WIS2Pilot: Run pilot project establishing a couple of WIS2.0 nodes to showcase publishing and consumption of data over WIS2.0}

_{Task Team: Joaquim, Mamoru, Iwona, Sergio, Kirsti}

_{Presentation given at ET-SWx-5 (Action Item A5.9): WIS2.0 pilot for ionosonde data: Status and Plans (}_Joaquim):_{Doc 06.04}_,_{Doc 06.04.1}

Doc 4.2

14:40

6. Naming of Significant Space Weather Events

14:40

Naming of Significant Space Weather Events (ET Chair)

_{Naming of Significant Events:}

_{Correspondence received:}_{2024-02c WMO letter.pdf}
_{Initial response:}_{2024_LTR_SG_ESWAN+NamingSWxEvents_en.docx}
_{Presentation given at ET-SWx-6:}_{03.01_ET-SWx-6+NamingSWxStorms_KK.pptx}
_{Final response still to be sent, to be coordinated with COSPAR and ISES. Intent was to include reference to the decision not to name heat waves either. See Action A5.15.}

_A5.15

_{Conclude on response letter to ESWAN regarding the naming of Severe Space Weather Events}

_{First to check the rationale of the earlier response to heatwave naming request.}

Doc 6

15:00 UTC

End of this day session

Tuesday 9 December 2025

Documents

12:00 UTC

7. Rolling Review of Requirements process

12:00

7.1. Outcomes of the RRR workshop (Krunoslav Premec, Heikki Pohjola, Secretariat)

12:20

7.2. A way forward for SWx ESAC and OSCAR/Requirements (Krunoslav Premec, Secretariat)

_A6.2	_{Prepare excel sheets with proposed Requirements for insertion in OSCAR/Requirements, to invite comments from ET-SWx members. (Clearly separate Requirements/Variables which are essentially ready and for which only final comments and finetuning are expected from other Variables/Requirements which are expected to require more and longer in depth discussion before they are ready for insertion.)}	_Completed
_A6.3	_{Comment on Excel sheets listed above. (Please clearly indicate your name with any comments you leave.)}	_Completed
_A6.4	_{Finalise 1^st round of OSCAR/Requirements insertion and notify Secretariat}_{20250527ConsolidateCommentsET-SWx}	_Completed
_A6.5	_{Release first round of OSCAR/Requirements}₍_Secretariat)	_Ongoing

12:50

7.3. SoG for SWx ESAC (Larisa Trichtchenko, ESAC coordinator)

Please refer to the folder at: here

Doc 7.3

Doc 7.3 (PPT)

13:20

8. INFCOM-4 deliverables

13:20

8.1 Introduction on INFCOM-4 and ET-SWx deliverables (Krunoslav Premec, Secretariat)

13:30

8.2 WIGOS Manual/Guide: Attributes for SWx (ET Chair, Secretariat)

_A5.12	_{Start an effort to document SWOS in}_{WIGOS Manual}_and_{WIGOS Guide}_{(possibly downscaled to specific subdomain), including process and specs for station identifier (WSI) assignment}
_A6.1	_{SWOS drafting team first brainstorm meeting (Subaction of A5.12)}

_{The following distribution of work agreed during the brainstorming meeting (Action A6.1):}

_-_{Solar optical: Judith and Joaquim}

_-_{Solar radio: Mamoru, Joaquim, David, Americo, Erik, Richard}

_-_{Radiation (neutron etc… ) monitors: Sergio, Nagatsuma-san}

_-_{Surface magnetic field: Kirsti and Larisa}

_-_{Ionosondes: Mamoru involved GION partners as needed}

_-_{Riometers: Robyn}

_-_{GNSS (both TEC and scintillation): Jens, Mamoru and INGV people}

_{Each of those also has a dedicated Appendix.}

_{For the Guide: there is just a placeholder new chapter 9.X on page 103, but without structure so far.}

_{Please refer to the link at:}_{WIGOS Manual & Guide}_{for status.}

14:10

8.3. Presentation on GION of relevance to WIGOS Manual (Mamoru Ishii, ISES)

14:30

9. Conclusions and closure

14:30

9.1 Action Item Review

14:45

9.2 AOB

15:00 UTC

End of the meeting