„The Earth’s Energy Budget, Climate Feedbacks and Climate Sensitivity“

based on Chapter 7 of „Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the IPCC“

• Date: Afternoon of Wednesday 5.10.2022 and Morning of Thursday 6.10.2022
• each talk is based on 2 publications
• 30 min presentation, 10-15 minutes discussion
• Language: English or Deutsch

We expect all students who want to take part to:

1. Select one paper and register with the given advisor and Tobias Zinner until end of August.
2. Look for a second paper connected to your selection (e.g. check the IPCC chapter given in brackets, use Web of Knowledge/ Web of Science or Google Scholar. Check:
   • Link to LMU Bib search
   • Link to E-Medien-Login (use your LMU-Kennung)
   • University databases for geosciences
3. Use the context and central figures from the IPCC chapter in your presentation!
4. Talke/write to your advisor to discuss the literature you plan to use for your presentation soon.
5. Talk to your advisor at least one more time before the seminar. At this meeting you should go through the final presentation with the advisor in time for last changes. Consequently, this should take place just before the seminar in October.

13:30, Present-day Energy Budget, with focus on satellite observations of solar surface irradiance (Chap.7.2.1), Miriam Schabel

• Huang, G. et al., 2019: Estimating surface solar irradiance from satellites: Past, present, and future perspectives. Remote Sensing of Environment, 233, 111371, doi:10.1016/j.rse.2019.111371.
• Vindel, J. et al, 2016: Temporal scaling analysis of irradiance estimated from daily satellite data and numerical modelling, https://doi.org/10.1016/j.atmosres.2016.06.020 (Advisor: Tobias Zinner)

14:20, Changes in Earth’s Energy Budget (Chap.7.2.2), Julian Bauer

• Liu, C. et al., 2020: Variability in the global energy budget and transports 1985–2017. Climate Dynamics, 55(11–12), 3381–3396, doi:10.1007/s00382- 020-05451-8.
• Loeb, N.G., et al., 2018: Changes in Earth’s Energy Budget during and after the “Pause” in Global Warming: An Observational Perspective. Climate, 6(3), 62, doi:10.3390/cli6030062 (Advisor: Tobias Zinner)

15:10, ERF - Aerosols (Chap.7.3.3), Marie Mähnert

• Stevens, B. & Feingold, G. Untangling aerosol effects on clouds and precipitation in a buffered system. Nature, 461 (7264), 607–613 (2009). doi:10.1038/nature08281. (Advisor: Fabian Hoffmann)

9:30, ERF - Aerosols (Chap.7.3.3), Alexander Scheiderer

• Hasekamp, O.P., Gryspeerdt, E. & Quaas, J. Analysis of polarimetric satellite measurements suggests stronger cooling due to aerosol-cloud interactions. Nat Commun 10, 5405 (2019). https://doi.org/10.1038/s41467-019-13372-2.
• Quaas, J., et al. 2020: Constraining the Twomey effect from satellite observations: issues and perspectives, Atmos. Chem. Phys., 20, 15079–15099, https://doi.org/10.5194/acp-20-15079-2020, 2020. (Advisor: Veronika Pörtge)

10:20, Dependence of Feedbacks on Climate Mean State (Chap.7.4.3), Julia Schabel

• Rugenstein, M.A.A. et al., 2020: Equilibrium Climate Sensitivity Estimated by Equilibrating Climate Models. Geophysical Research Letters, 47(4), 2019GL083898, doi:10.1029/2019gl083898. (Advisor: Thomas Birner)

11:10, Estimates of ECS and TCR Based on Emergent Constraints (Chap.7.5.4), Dario Sperber

• Nijsse, F.J.M.M., P.M. Cox, and M.S. Williamson, 2020: Emergent constraints on transient climate response (TCR) and equilibrium climate sensitivity (ECS) from historical warming in CMIP5 and CMIP6 models. Earth System Dynamics, 11(3), 737–750, doi:10.5194/esd-11-737-2020. (Advisor: Thomas Birner)

Full text of Chapter 7: https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter07.pdf

Contact: Tobias Zinner.