SIAG-MPE
SIAM Activity Group on Mathematics of Planet Earth
SIAG/MPE is for mathematicians and computational scientists who care about the future of our planet. We are a multidisciplinary activity group studying Earth’s climate system and the effects of climate change; issues of resilience, sustainability, and biodiversity; and the impact of human activities on the environment. All activities organized by the group will be announced here. Stay tuned!
You can also find more general information on the main SIAM page
Announcements
We are pleased to announce the next Community Meeting “Predictability and Early Warning of Climate Tipping Points” by Dr. Johannes J. Lohmann, Niels Bohr Institute, University of Copenhagen, Denmark. It will occur on December 19, 2024, at 11:00 a.m. EDT (23:00 CST-HK, 17.00 CEST, 15:00 UTC, 8:00 a.m. PDT).
The Zoom link for the SIAM MPE Community Meeting is https://siam.zoom.us/meeting/register/tZEsc-uqqT8rHtP9zP1L2qlJChWvXikAQngh.
Abstract:
Rising global temperatures lead to mounting stress on societies due to an increased frequency of extreme weather events. This will worsen as the climate continues on its currently projected path, which is a linear function of greenhouse gas emissions. But there is further concern from paleoclimate data and theoretical considerations that the climate’s response will eventually become non-linear and may feature discontinuous jumps, the so-called tipping points. These are a result of co-existing stable steady states in parts of the Earth system, such as the ice sheets, rainforests, and ocean circulation, and they can make climate change partially irreversible even under drastic reduction of the atmospheric CO2 concentrations. State-of-the-art Earth system models show too little agreement to give quantitative estimates on the critical levels of global warming that trigger tipping points. As alternative line of evidence, data-driven methods have been proposed that harness general features of dynamical systems undergoing critical transitions, requiring only little detailed knowledge of the system. Such early-warning signals have been identified in various parts of the climate system, but they are not without caveats. In this talk I will present some recent and ongoing work on the predictability of climate tipping points, focusing on a potential collapse of the Atlantic Ocean circulation. The work shows limitations of commonly used early-warning signals and proposes improvements using tools from statistical physics to construct optimal observables. I will further briefly discuss work on more fundamental challenges to climate predictability due to high multistability, non-autonomous instabilities, chaos, and fractal basin boundaries.
Short bio: MSc in physics from TU Berlin and Duke University. PhD in climate physics at Copenhagen University (2018). Assistant professor at NBI since 2021, working in the group for Physics of Ice, Climate and Earth (PICE). Visiting Assistant Professor at the University of Tokyo in 2023, returning to NBI in 2024. Currently PI for two projects on climate tipping points funded by DFF and Villum.
MPE Community Meeting - Informal Q&A and Conversations - September 12, 2024
We are pleased to announce the next Community Meeting for the SIAM activity group Mathematics of Planet Earth (MPE) this coming Thursday, September 12, at 10:00 a.m. EDT (22:00 CST-HK, 16.00 CEST, 14:00 UTC, 7:00 a.m. PDT). We will host our second informal discussion and Q&A sessions, where you chat with mid-career and senior researchers, educators, industry representatives, and SIAM professionals. The attendees can go to different breakout rooms for casual conversations with each other and an MPE officer, researcher, or professional.
Examples of discussions and Q&A topics include but are not limited to:
Career and job search tips (laboratory, university, industry, administration, government, etc.) Education and research advice (teaching, research topics, presentations, etc.) Specific MPE research areas Specific applied mathematics, computational science, or data science disciplines Work-family balance, hobbies, fun, continent-specific or country-specific Q&As Tips on funding, research proposals, program managers, and fund-raising Suggestions on paper writing, publications, journals, editorial jobs, etc. Codes, data, knowledge-sharing, social media Tips on service and leadership experiences SIAM organization, SIAM roles, how to get involved Suggestions for future SIAM MPE activities etc.
MPE Community Meeting - Informal Q&A and Conversations - June 6, 2024
We are pleased to announce the next Community Meeting for the SIAM activity group Mathematics of Planet Earth (MPE) this Thursday, June 6, at 10:00 a.m. EDT (22:00 CST-HK, 16.00 CEST, 14:00 UTC, 7:00 a.m. PDT). Please save the date!
The meeting format will be informal discussions and Q&A sessions, where you chat with mid-career and senior researchers, educators, and SIAM professionals. The SIAM MPE attendees can go to different breakroom rooms for casual conversations with each other and an MPE officer, researcher, or professional.
MPE24
The SIAM Conference on Mathematics of Planet Earth (MPE24) will occur June 10-12, 2024 in Portland, Oregon, USA. The program can be found here.
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MPE Comminity Meetings
Welcome to the new monthly Virtual MPE Community Meetings.
Below you can find the latest presentations, also available MPE Community Meeting SIAM YouTube Channel
Presentations:
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The AI Revolution on Climate Modeling
Pedram Hassanzadeh
University of Chicago
October 24, 2024, at 11:00 a.m. EDT
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AI-driven Climate Modeling: Present and Future
Dr. Chris Bretherton
Allen Institute for Artificial Intelligence (AI2), USA
Thursday, November 21, 2024, at 11:00 a.m. EDT
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Explainable AI for Climate Science: Opening the Black Box to Reveal Planet Earth
Elizabeth A. Barnes
Department of Atmospheric Science, Colorado State University, USA
Thursday, September 26, 2024, at 11:00 a.m. EDT
- Computational Methods in Ice-sheet Modeling: From Large-scale Calibration to Multi-fidelity Uncertainty Propagation
Mauro Perego
Center for Computing Research, Sandia National Laboratories
Thursday, May 30, 2024 at 11:00 a.m. EDT
- Lagrangian Data Assimilation and Uncertainty Quantification
Nan Chen
Assistant Professor, Department of Mathematics, University of Wisconsin-Madison
Thursday, April 25, 2024 at 10:30 a.m. EDT
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Time-integration Strategies for Non-hydrostatic Atmospheric Models
Francis X. Giraldo
Distinguished Professor, Department of Applied Mathematics, Naval Postgraduate School, Monterey, California
Thursday, March 28, 2024 at 11:00 a.m. EDT
- Noise Calibration for Geophysical Fluid Dynamics Models
Dan Crisan
Professor of Mathematics, Imperial College London, UK
Thursday, December 21, 2023 at 11:00 a.m. EDT
- Advancing Earth System Predictability with Machine Learning Methods
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Navigating the Era of Environmental Prediction
Antonio Busalacchi
President of the University Corporation for Atmospheric Research (UCAR), Boulder, CO
Thursday, October 26, 2023 at 11:00 a.m. EDT
Current and Past MPE Officers
2023 - 2024
Chair: Pierre Lermusiaux
Vice Chair: Irina Tezaur
Program Director: Julie Bessac
Secretary: Gerardo Hernández-Dueñas
2021 - 2022
Chair: Katherine Evans
Vice Chair: Carrie Anna Manore
Program Director: Jessica Matthews
Secretary: Olga Vasilieva
2019 - 2020
Chair: Lea Jenkins
Vice Chair: Arjen Doelman
Program Director: George Gottwald
Secretary: Beth Wingate
2017 - 2018
Chair: Hans Engler
Vice Chair: Kathleen Kavanagh
Program Director: Eleanor W. Jenkins
Secretary: Pedro Gajardo
2015 - 2016
Chair: Hans G. Kaper
Vice Chair: Mary Lou Zeeman
Program Director: Hans Engler
Secretary: Antonios Zagaris