Expert Team on Earth Observing Systems Design and Evolution (ET-EOSDE) 6th (2nd hybrid) meeting

Meeting Information

The main objective of the meeting is to progress with the execution of the ET-EOSDE workplan and advance the documents to be submitted to the 4th session of the Commission for Observation, Infrastructure and Information Systems (INFCOM). In particular, the meeting is expected to address the updates of the WIGOS regulatory and guidance material, the execution of the WIGOS Rolling Review of Requirements (RRR) process, the Global Basic Observing Network (GBON) expansion, the Regional Basic Observing Network (RBON) design and implementation, the WIGOS vision updates and other emerging activities related to the ET’s Terms of Reference.

Meeting Agenda

Tuesday, 2 December 2025

Time (KST)ItemTopicSpeaker/Lead
08:30 - 09:30Registration of participants
1. Opening and introductory presentations 
09:30 - 09:351.1Recording of meeting, approval of the agenda and expected outcome of the meetingE. Andersson
09:35 - 09:451.2Welcome note from PR of RoK (or Senior manager of KMA)KMA
09:45 - 09:501.3Welcome notes from SC-ON and ET leadersS. Kaya, E. Andersson, J. Sugier, S. Boukabara
09:50 - 09:551.4Welcome from the WMO SecretariatWMO Secretariat
09:55 - 10:251.5Introduction of KMA Observing networksKMA
10:25 - 10:501.6Visiting KMA Weather Center (and group photo)KMA
10:50 - 11:10Coffee/tea break
2. Reports on recent activities and review of actions
 
11:10 - 11:252.1ET-Chairs’ reportE. Andersson, J. Sugier, S. Boukabara
11:25 - 11:402.2Update from the WMO SecretariatWMO Secretariat
11:40 - 12:302.3Relevant updates from members representing ET-EOSDE in other teams: 
2.3.1. SC-ON
2.3.2. Capacity Development
2.3.3. TT-EarthHydroNet (Hydrology),
- Observation Networks,
- GBON,
- Data Policy and Core Group
2.3.4. GCW
2.3.5. G3W
2.3.6. Space Programme (ET-SSU) and GAW (ET-ACNDE)
2.3.7. TT-WIGOSMD
2.3.8. Tiered Networks
2.3.9. SC-MINT
2.3.10. TT-GSRN
2.3.11. WG-GRUAN
2.3.12. ET-SON
2.3.13. JCB subgroup on GBON


E. Andersson, R. Eckman
S. Boukabara

J. Chira la Rosa
D. Hotta
E. Andersson
P. de Rosnay
P. Patra
R. Eckman
R. Yasmin
D. Hotta
V. Lehmann
S. Park
E. Andersson
E. Andersson
J. Guo
12:30 - 14:00Lunch break (lunch kindly hosted by KMA)
3. WIGOS Vision and HLG
14:00 - 14:303.1Overview of the WIGOS vision draft – structure and further stepsS. Boukabara
14:30 - 15:003.2Section on evolution of the user observation needs and application areas – discussionR. Munro/ S. Boukabara
15:00 - 15:303.3HLG update and priority actions monitoring- discussionM. Gregoire, T. Hutchinson
15:30 - 16:00Coffee/tea break
4. RBON Design and Implementation
16:00 - 16:204.1Report from the RBON coordination groupJ. Sugier
16:20 - 16:504.2RBON station (de)affiliation in OSCAR/SurfaceS. Linnerts/ T. Kleinert (ET-WTR)
16:50 - 17:204.3RBON data exchange through WIS 2.0R. Giraud (SC-IMT)
17:20 - 17:404.4Performance monitoring/data availability (RBON pilot projects) - discussionR. Yasmin

Wednesday, 3 December 2025

Time (KST)ItemTopicSpeaker/Lead
4. RBON Design and Implementation (ctd) 
 
09:00 - 10:104.5Status per Regions, including the AntarcticAll regional representatives
5. GBON Implementation and Expansion 
 
10:10 - 10:305.1GBON implementation - statusT Butcher/ L. Shi (ET-SON)
10:30 - 11:00Coffee/tea break
11:00 - 11:205.2Possible GBON expansion in hydrologyJ.C. Ntonga/ D. Hotta
11:20 - 11:405.3Global ocean basic observing network – report on JCB/TT on GBON activitiesJ. Guo
11:40 - 12:005.4Outcomes of the ET-EOSDE Subgroup on GBON expansionE. Andersson/ J. Guo
12:00 - 12:305.5Document on GBON expansion (roadmap) for INFCOM-4 - discussionE. Andersson/ J. Guo
12:30 - 14:00Lunch
6. Rolling Review of Requirements 
 
14:00 - 14:306.1Key outcomes and recommendations of the RRR workshopsR. Munro
14:30 - 15:156.2Discussion and future actionsR. Munro/ E. Andersson
15:15 - 15:30Coffee/tea break
15:30 - 18:00Visiting tour (Seoul Weather Station/National Meteorological Museum)

Thursday, 4 December 2025

Time (KST)ItemTopicSpeaker/Lead
6. Rolling Review of Requirements (ctd) 
 
09:00 - 09:306.3Reference guide for PoCs and Coordinators – reviewR. Eckman/ WMO Secretariat
09:30 - 10:006.4OSCAR/Requirements database evolutionWMO Secretariat/ H. Pohjola
10:00 - 10:306.5Interpretation and use of OSCAR/Requirements uncertaintyV. Lehmann
10:30 - 11:00Coffee/tea break
11:00 - 11:306.6Measuring impact of RRRR. Munro/ E. Andersson
11:30 - 12:006.7Possible changes to make RRR fit-for-purpose, including development of ESAC on Integrated Earth System applicationsV. Tallapragada
12:00 - 12:306.8Discussion and way forwardR. Munro/ E. Andersson
12:30 - 14:00Lunch
7. Observing network design 
 
14:00 - 14:207.1Outcomes and recommendations of G3W network design workshopP. Patra
14:20 - 14:407.2Guidelines on hydrological network designJ. Chira la Rosa/ WMO Secretariat
14:40 - 15:007.3Possible consolidation of various surface-based observing networksT. Butcher/ L. Shi (ET-SON)
15:00 - 15:307.4Discussion on observing network design and possible consolidationE. Andersson/ R. Eckman
15:30 - 16:00Coffee/tea break
8. Deliverables to INFCOM-4 
 
16:00 - 16:308.1Proposed amendments to the Technical Regulations (WMO-No. 49) and the Manual on WIGOS (WMO-No. 1160)WMO Secretariat/ K. Premec
16:30 - 17:008.2Proposed updates to the Guide to WIGOS (WMO-No. 1165)WMO Secretariat/ K. Premec
17:00 - 17:308.3Any other deliverables and plan for finalisation of the documents for SC-ON reviewE. Andersson/ K. Premec

Friday, 5 December 2025

Time (KST)ItemTopicSpeaker/Lead
9. Capacity development, outreach material and communication  
 
09:00 - 09:209.1SC-ON guidance on capacity developmentM. Suaya (SC-ON)
09:20 - 09:409.2Development of an outreach material on RBON implementation – status and review of the available materialJ. Sugier
09:40 - 10:009.3Development of an outreach material on RRR – status and review of the available materialR. Munro
10:00 - 10:309.4The needs and way forward – discussionJ. Sugier/ R. Munro
10:30 - 11:00Coffee/tea break
10. Strategic perspective 
 
11:00 - 11:2010.1Current activities to be carried on after INFCOM-4E. Andersson
11:20 - 11:4010.2WMO restructuring and possible impact on ET-EOSDEWMO Secretariat
11:40 - 12:1510.3Possible changes to the scope and future role of ET-EOSDEE. Andersson, J. Sugier, S. Boukabara
12:15 - 12:3010.4Succession planningE. Andersson, J. Sugier, S. Boukabara
12:30 - 14:00Lunch
14:00 - 14:2011Towards 9th observation impact workshopS. Park
14:20 - 15:0012Interactions with other teams/activities (from INFCOM, SERCOM, RAs)SC-ON/ET leaders
15:00 - 15:1013Review of new actions
Next ET-EOSDE meeting (date, type, agenda)
E. Andersson, J. Sugier, S. Boukabara, WMO Secretariat
15:10 - 15:2514AOBAll
15:25 - 15:3015ClosingE. Andersson, J. Sugier, S. Boukabara, WMO Secretariat

Local Arrangements

Please see the following ET-EOSDE-6-Local_arrangements.pdf - updated on 1 Oct 2025.