• Opening and Goal of JSC-43 from JSC Chair and Vice-Chair [15 mins] (D. Stammer, H. Cleugh)
• Welcome from Co-sponsors [3 mins each] J Luterbacher on behalf of E. Manaenkova (WMO), M. Denis (ISC), V. Ryabinin (IOC, by pre-recorded video)
• Welcome on behalf of WCRP Secretariat [5 mins] ( M. Sparrow)
• Approval of Agenda [5 mins] (D. Stammer, H. Cleugh)
• Guidelines for running JSC-43 via videoconference [6 mins] (D. Stammer, H. Cleugh)

2. Strategic initiatives and Issues: Update and Discussion [140 mins]

2.1 New and emerging science issues [15 mins] (D. Stammer and H. Cleugh)

2.2 New science - Task Team Updates [3 x 15 mins; 10 mins presentation and 5 mins discussion]

• Climate Intervention (J. Hurrell and M. Ivanova)
• Global Precipitation Experiment (GPEX) (X. Zeng)
• Cycles and Budgets (J. Polcher)

2.3 GCOS/WCRP collaborations [15 min presentation and 10 min discussion] (H. Dolman)

2.4 Future of Climate Modelling Workshop [10 +10 mins] (V. Naik/ P. Forster)

2.5 Engagement with the IPCC climate science assessment processes [15+10 mins] (D. Stammer, H. Cleugh, V. Masson-Delmotte/A. Pirani)

• IPCC WG1 – WCRP Collaborations (V. Masson-Delmotte/Panmao Zhai/ A. Pirani)
• Update on planned WCRP-IPCC Workshop (D. Stammer, H. Cleugh, R. Sánchez Rodríguez)

Days two and three are focussed on our Core Projects, Lighthouse Activities and other activities that the JSC and others should be aware of (https://www.wcrp-climate.org/wcrp-ip-structure)

3. WCRP Activity Updates and Discussion [180 + 180 mins]

3.1 Presentations and Discussion of WCRP core activities (Part 1)

• Grand Challenge on Regional Sea Level Change and Coastal Impacts [10 mins presentation + 10 mins discussion] (D. Behar)
• Climate and Cryosphere (CliC) Core Project [10+10] (E. Hanna)
• Global Energy and Water Exchanges (GEWEX) Core Project [10+10] (J. Polcher and X. Zeng)

[10 min break]

• WCRP Academy Lighthouse Activity [10+10] (A. Maharaj)
• Digital Earths Lighthouse Activity [10+10] (C. Jakob)
• Safe Landing Climates Lighthouse Activity [10+10] (G. Hegerl)

3.2 Climate Research Forums [10+10] (H. Cleugh)

Discussion [30 mins]

3.3. Presentations and discussion of WCRP core activities (Part 2)

• My Climate Risk Lighthouse Activity [10 mins presentation plus 10 mins discussion] (T. Shepherd and R. Rodrigues)
• Stratosphere-troposphere Processes and their Role in Climate (SPARC) Core Project [10+10] (Seok-Woo Son)
• Regional Information for Society (RIfS) Core Project (including CORDEX and Global Extremes Platform) [20+10] (B. Hewitson, S. Solman, and S. Pryor)

[10 min break]

• Climate and Ocean Variability, Predictability and Change (CLIVAR) Core Project [10+10] (S. Legg)
• Explaining and Predicting Earth System Change Lighthouse Activity [10+10] (K. Findell and R. Sutton)
• Earth System Modelling and Observation (ESMO) Core Project [10+10] (S. Tegtmeier or C. Senior)
  • Coupled Modelling Intercomparison Project (CMIP) [10+10] (J-F. Lamarque)

Discussion [20 mins]

4. Connections, Partnerships and Collaboration [95 mins]

4.1 Discussion: Ensuring Connections between Core Projects and Lighthouse Activities [20 mins] (P. Braconnot and J. Christensen)

4.2 Partnerships and collaboration (J. Hurrell and P. Braconnot) [75 mins]

Brief updates from partners including

• World Weather Research Programme (C. Davis, E. De Coning) [10+5]
• Global Atmosphere Watch (G. Carmichael, O. Tarasova) [10+5]
• Future Earth (speaker TBC) [10 + 5 mins]
• General short interventions from other partners [30 mins]

5. WCRP Open Science Conference [25 mins]
(D. Stammer, H. Cleugh, V. Detemmerman, N. Caltabiano)
https://www.wcrp-climate.org/wcrp-osc23

Including

• Updates and discussion on programme, plenaries and sessions
• Comms, branding and marketing
• North-South Engagement and involvement of Early Career Scientists
• Fund raising and finances

6. WCRP Science and Implementation Plan [30 mins]
(D. Stammer and H. Cleugh)

Including

• Introduction and progress with regards to the WCRP Science and Implementation Plan
• Engagement of WCRP activities and partners
• The way forward, including timeline

7. WCRP Secretariat and Finance [30 mins]

• Secretariat Report [5 mins] (M. Sparrow)
• Summary of Budgets and Finance [10 mins] (M. Sparrow)
  M. Sparrow will briefly summarise the 2021/22 expenditure, and 2023 budget
• Discussion on future use of funds [15 mins] (D. Stammer, H. Cleugh, M. Sparrow)