5 October 2023…
Atmosphere and Ocean Climate Dynamics Seminar (Presentation): Using explainable machine learning to evaluate climate change projections, Yale University, New Haven, CT. Remote Presentation.
References...
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the regional emergence of climate patterns in the ARISE-SAI-1.5 simulations. Environmental Research Letters, DOI:10.1088/1748-9326/acc81a, https://iopscience.iop.org/article/10.1088/1748-9326/acc81a
Creative machine learning approaches for climate change detectionZachary Labe
14 April 2023…
Resnick Young Investigators Symposium (Invited Presentation): Creative machine learning approaches for climate change detection, California Institute of Technology (Caltech), USA. https://resnick.caltech.edu/events/resnick-symposium/2023-symposium
References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
Po-Chedley, S., J.T. Fasullo, N. Siler, Z.M. Labe, E.A. Barnes, C.J.W. Bonfils, and B.D. Santer (2022). Internal variability and forcing influence model-satellite differences in the rate of tropical tropospheric warming. Proceedings of the National Academy of Sciences, DOI:10.1073/pnas.2209431119
Using explainable AI to identify key regions of climate change in GFDL SPEAR ...Zachary Labe
15 March 2023…
GFDL Lunchtime Seminar Series (Presentation): Using explainable AI to identify key regions of climate change in GFDL SPEAR large ensembles, Princeton, NJ.
References...
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the regional emergence of climate patterns in the ARISE-SAI-1.5 simulations. https://doi.org/10.31223/X5394Z (submitted)
Explainable AI approach for evaluating climate models in the ArcticZachary Labe
27 March 2024…
IARPC Collaborations, Modelers’ Community of Practice (Presentation): Explainable AI approach for evaluating climate models in the Arctic. Remote Presentation.
References...
Labe, Z. M., & Barnes, E. A. (2022). Comparison of climate model large ensembles with observations in the Arctic using simple neural networks. Earth and Space Science, 9(7), e2022EA002348, https://doi.org/10.1029/2022EA002348
data-driven approach to identifying key regions of change associated with fut...Zachary Labe
Labe, Z.M., T.L. Delworth, N.C. Johnson, and W.F. Cooke. A data-driven approach to identifying key regions of change associated with future climate scenarios, 23rd Conference on Artificial Intelligence for Environmental Science, Baltimore, MD (Jan 2024). https://ams.confex.com/ams/104ANNUAL/meetingapp.cgi/Paper/431300
Exploring explainable machine learning for detecting changes in climateZachary Labe
9 February 2023…
Department of Earth, Ocean, and Atmospheric Science Colloquium (Presentation): Exploring explainable machine learning for detecting changes in climate, Florida State University, USA. Remote Presentation.
References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
Po-Chedley, S., J.T. Fasullo, N. Siler, Z.M. Labe, E.A. Barnes, C.J.W. Bonfils, and B.D. Santer (2022). Internal variability and forcing influence model-satellite differences in the rate of tropical tropospheric warming. Proceedings of the National Academy of Sciences, DOI:10.1073/pnas.2209431119
Learning new climate science by thinking creatively with machine learningZachary Labe
Presentation for: GFDL/AOS Summer Internship Lecture Series
The popularity of machine learning is rapidly growing in nearly all areas of Earth science. However, there is also some hesitancy in adopting the use of these methods due to concerns about their reliability, reproducibility, and interpretability – thus, they are often described as “black boxes.”
In this talk, I will introduce a few simple examples from climate science that leverage new visualization methods to peer into the machine learning “black box,” which help us to better understand their predictions while also learning new science. These same machine learning visualization tools can be easily adapted for a wide variety of applications and other scientific fields of study.
Explainable neural networks for evaluating patterns of climate change and var...Zachary Labe
12 March 2024…
Sharing Science – North American Webinar, Young Earth System Scientists (YESS) Community (Presentation): Explainable neural networks for evaluating patterns of climate change and variability. Remote Presentation.
References...
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the regional emergence of climate patterns in the ARISE-SAI-1.5 simulations. Environmental Research Letters, DOI:10.1088/1748-9326/acc81a
Creative machine learning approaches for climate change detectionZachary Labe
14 April 2023…
Resnick Young Investigators Symposium (Invited Presentation): Creative machine learning approaches for climate change detection, California Institute of Technology (Caltech), USA. https://resnick.caltech.edu/events/resnick-symposium/2023-symposium
References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
Po-Chedley, S., J.T. Fasullo, N. Siler, Z.M. Labe, E.A. Barnes, C.J.W. Bonfils, and B.D. Santer (2022). Internal variability and forcing influence model-satellite differences in the rate of tropical tropospheric warming. Proceedings of the National Academy of Sciences, DOI:10.1073/pnas.2209431119
Using explainable AI to identify key regions of climate change in GFDL SPEAR ...Zachary Labe
15 March 2023…
GFDL Lunchtime Seminar Series (Presentation): Using explainable AI to identify key regions of climate change in GFDL SPEAR large ensembles, Princeton, NJ.
References...
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the regional emergence of climate patterns in the ARISE-SAI-1.5 simulations. https://doi.org/10.31223/X5394Z (submitted)
Explainable AI approach for evaluating climate models in the ArcticZachary Labe
27 March 2024…
IARPC Collaborations, Modelers’ Community of Practice (Presentation): Explainable AI approach for evaluating climate models in the Arctic. Remote Presentation.
References...
Labe, Z. M., & Barnes, E. A. (2022). Comparison of climate model large ensembles with observations in the Arctic using simple neural networks. Earth and Space Science, 9(7), e2022EA002348, https://doi.org/10.1029/2022EA002348
data-driven approach to identifying key regions of change associated with fut...Zachary Labe
Labe, Z.M., T.L. Delworth, N.C. Johnson, and W.F. Cooke. A data-driven approach to identifying key regions of change associated with future climate scenarios, 23rd Conference on Artificial Intelligence for Environmental Science, Baltimore, MD (Jan 2024). https://ams.confex.com/ams/104ANNUAL/meetingapp.cgi/Paper/431300
Exploring explainable machine learning for detecting changes in climateZachary Labe
9 February 2023…
Department of Earth, Ocean, and Atmospheric Science Colloquium (Presentation): Exploring explainable machine learning for detecting changes in climate, Florida State University, USA. Remote Presentation.
References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
Po-Chedley, S., J.T. Fasullo, N. Siler, Z.M. Labe, E.A. Barnes, C.J.W. Bonfils, and B.D. Santer (2022). Internal variability and forcing influence model-satellite differences in the rate of tropical tropospheric warming. Proceedings of the National Academy of Sciences, DOI:10.1073/pnas.2209431119
Learning new climate science by thinking creatively with machine learningZachary Labe
Presentation for: GFDL/AOS Summer Internship Lecture Series
The popularity of machine learning is rapidly growing in nearly all areas of Earth science. However, there is also some hesitancy in adopting the use of these methods due to concerns about their reliability, reproducibility, and interpretability – thus, they are often described as “black boxes.”
In this talk, I will introduce a few simple examples from climate science that leverage new visualization methods to peer into the machine learning “black box,” which help us to better understand their predictions while also learning new science. These same machine learning visualization tools can be easily adapted for a wide variety of applications and other scientific fields of study.
Explainable neural networks for evaluating patterns of climate change and var...Zachary Labe
12 March 2024…
Sharing Science – North American Webinar, Young Earth System Scientists (YESS) Community (Presentation): Explainable neural networks for evaluating patterns of climate change and variability. Remote Presentation.
References...
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the regional emergence of climate patterns in the ARISE-SAI-1.5 simulations. Environmental Research Letters, DOI:10.1088/1748-9326/acc81a
Applications of machine learning for climate change and variabilityZachary Labe
23 February 2024…
Department of Environmental Sciences Seminar (Presentation): Applications of machine learning for climate change and variability, Rutgers University, New Brunswick, NJ.
References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
Labe, Z. M., Johnson, N. C., & Delworth, T. L. (2024). Changes in United States summer temperatures revealed by explainable neural networks. Earth's Future, DOI:10.1029/2023EF003981
We present a survey of computational and applied mathematical techniques that have the potential to contribute to the next generation of high-fidelity, multi-scale climate simulations. Examples of the climate science problems that can be investigated with more depth with these computational improvements include the capture of remote forcings of localized hydrological extreme events, an accurate representation of cloud features over a range of spatial and temporal scales, and parallel, large ensembles of simulations to more effectively explore model sensitivities and uncertainties.
Numerical techniques, such as adaptive mesh refinement, implicit time integration, and separate treatment of fast physical time scales are enabling improved accuracy and fidelity in simulation of dynamics and allowing more complete representations of climate features at the global scale. At the same time, partnerships with computer science teams have focused on taking advantage of evolving computer architectures such as many-core processors and GPUs. As a result, approaches which were previously considered prohibitively costly have become both more efficient and scalable. In combination, progress in these three critical areas is poised to transform climate modeling in the coming decades.
Climate change extremes by season in the United StatesZachary Labe
11 September 2023…
Hershey Horticulture Society (Presentation): Climate change extremes by season in the United States, Hershey, PA, USA.
References...
Eischeid, J.K., M.P. Hoerling, X.-W. Quan, A. Kumar, J. Barsugli, Z.M. Labe, K.E. Kunkel, C.J. Schreck III, D.R. Easterling, T. Zhang, J. Uehling, and X. Zhang (2023). Why has the summertime central U.S. warming hole not disappeared? Journal of Climate, DOI:10.1175/JCLI-D-22-0716.1
Labe, Z.M., T.R. Ault, and R. Zurita-Milla (2016), Identifying Anomalously Early Spring Onsets in the CESM Large Ensemble Project, R. Clim Dyn, DOI:10.1007/s00382-016-3313-2
Labe, Z.M., N.C. Johnson, and T.L Delworth (2023). Changes in United States summer temperatures revealed by explainable neural networks. Preprint. DOI: 10.22541/essoar.168987129.98069596/v1
Climate model parameterizations of cumulus convection and other clouds that form due to small-scale turbulent eddies are a leading source of uncertainty in predicting the sensitivity of global warming to greenhouse gas increases. Even though we can write down equations governing the physics of cloud formation and fluid motion, these cloud-forming eddies are not resolved by the grid of a climate model, so the subgrid covariability of cloud processes and turbulence must be parameterized. Many approaches are used, all involving numerous subjective assumptions. Even when optimized to match present-day climate, these approaches produce a broad range of predictions about how clouds will change in a future climate.
High resolution models which explicitly simulate the clouds and turbulence on a very fine computational grid more realistically simulate cloud formation compared to observations. But it has proved challenging to translate this skill into better climate model parameterizations.
We will present one naturally stochastic approach for this using a computationally expensive approach called ‘superparameterization’ and then we will lay out a vision for how machine learning could be used to do this translation, which amounts to a form of stochastic coarse-graining. Developing the statistical and computational methods to realize this vision is a good challenge for this SAMSI year.
Machine learning for evaluating climate model projectionsZachary Labe
IEEE-Student Branch- IIT Indore, Tech-Talks 2.0. Remote Presentation (Dec 2022) (Invited).
The popularity of machine learning methods, such as neural networks, is rapidly expanding in nearly all areas of science. The interest in these tools also coincides with a growing influx of big data and the need for high efficiency in solving predication problems. However, there is also some hesitancy in adopting the use of neural networks due to concerns about their reliability, reproducibility, and interpretability.
In climate science, we often consider signal-to-noise problems to help disentangle human-caused climate change from natural variability. These applications typically involve complicated relationships between different feedbacks at play in the ocean, cryosphere, land, and atmosphere. Recent work has shown that neural networks can be a promising tool for solving these types of statistical problems when combined with explainability techniques developed by the fields of computer science and image processing. Interestingly, these methods have revealed that neural networks often leverage regional patterns of climate change in order to make their predictions. In this webinar, I will share examples from climate science that use a few of these visualization methods to peer into the “black box” of neural networks, which help us to better understand their decision-making process while also learning new science. The same machine learning visualization methods can be easily adapted for a wide variety of applications and other scientific fields of study.
Learning new climate science by opening the machine learning black boxZachary Labe
Department of Psychology (Invited): Cognitive Brownbag Series, Colorado State University, CO.
The popularity of machine learning, specifically neural networks, is rapidly growing in nearly all areas of science. The explosion of these methods also coincides with a growing influx of computationally expensive data sets and the need for high efficiency in solving predication problems. However, there is also some hesitancy in adopting the use of neural networks due to concerns about their reliability, reproducibility, and interpretability – thus, they are often described as “black boxes.”
In climate science, we often consider signal-to-noise problems to help disentangle human-caused climate change from natural variability. These applications typically involve complicated nonlinear relationships between different feedbacks at play in the ocean, land, and atmosphere. Recent work has shown that neural networks can be a promising tool for solving these types of statistical problems when combined with explainability techniques developed by the fields of computer science and image processing. Interestingly, these methods have revealed that neural networks often leverage regional patterns of climate change indicators in order to make their predictions. In this talk, I will share examples from climate science that use a few of these visualization methods to peer into the “black box” of neural networks, which help us to better understand their decision-making processes while also learning new science. The same machine learning visualization methods can be easily adapted for a wide variety of applications and other scientific fields of study.
Using explainable machine learning for evaluating patterns of climate changeZachary Labe
22 February 2023…
Natural Sciences Group Seminar (Presentation): Using explainable machine learning for evaluating patterns of climate change, Washington State University Vancouver, USA. Remote Presentation.
References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
Reexamining future projections of Arctic climate linkagesZachary Labe
10 May 2024…
Atmospheric and Oceanic Sciences Student/Postdoc Seminar (Presentation): Reexamining future projections of Arctic climate linkages, Princeton University, USA.
References...
Labe, Z.M., Y. Peings, and G. Magnusdottir (2018), Contributions of ice thickness to the atmospheric response from projected Arctic sea ice loss,
Geophysical Research Letters, DOI:10.1029/2018GL078158
Labe, Z.M., Y. Peings, and G. Magnusdottir (2019). The effect of QBO phase on the atmospheric response to projected Arctic sea ice loss in early winter, Geophysical Research Letters, DOI:10.1029/2019GL083095
Labe, Z.M., Y. Peings, and G. Magnusdottir (2020). Warm Arctic, cold Siberia pattern: role of full Arctic amplification versus sea ice loss alone, Geophysical Research Letters, DOI:10.1029/2020GL088583
Labe, Z.M., May 2020: The effects of Arctic sea-ice thickness loss and stratospheric variability on mid-latitude cold spells. University of California, Irvine. Doctoral Dissertation.
Peings, Y., Z.M. Labe, and G. Magnusdottir (2021), Are 100 ensemble members enough to capture the remote atmospheric response to +2°C Arctic sea ice loss? Journal of Climate, DOI:10.1175/JCLI-D-20-0613.1
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References:
Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
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Numerical techniques, such as adaptive mesh refinement, implicit time integration, and separate treatment of fast physical time scales are enabling improved accuracy and fidelity in simulation of dynamics and allowing more complete representations of climate features at the global scale. At the same time, partnerships with computer science teams have focused on taking advantage of evolving computer architectures such as many-core processors and GPUs. As a result, approaches which were previously considered prohibitively costly have become both more efficient and scalable. In combination, progress in these three critical areas is poised to transform climate modeling in the coming decades.
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References...
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Climate model parameterizations of cumulus convection and other clouds that form due to small-scale turbulent eddies are a leading source of uncertainty in predicting the sensitivity of global warming to greenhouse gas increases. Even though we can write down equations governing the physics of cloud formation and fluid motion, these cloud-forming eddies are not resolved by the grid of a climate model, so the subgrid covariability of cloud processes and turbulence must be parameterized. Many approaches are used, all involving numerous subjective assumptions. Even when optimized to match present-day climate, these approaches produce a broad range of predictions about how clouds will change in a future climate.
High resolution models which explicitly simulate the clouds and turbulence on a very fine computational grid more realistically simulate cloud formation compared to observations. But it has proved challenging to translate this skill into better climate model parameterizations.
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The popularity of machine learning methods, such as neural networks, is rapidly expanding in nearly all areas of science. The interest in these tools also coincides with a growing influx of big data and the need for high efficiency in solving predication problems. However, there is also some hesitancy in adopting the use of neural networks due to concerns about their reliability, reproducibility, and interpretability.
In climate science, we often consider signal-to-noise problems to help disentangle human-caused climate change from natural variability. These applications typically involve complicated relationships between different feedbacks at play in the ocean, cryosphere, land, and atmosphere. Recent work has shown that neural networks can be a promising tool for solving these types of statistical problems when combined with explainability techniques developed by the fields of computer science and image processing. Interestingly, these methods have revealed that neural networks often leverage regional patterns of climate change in order to make their predictions. In this webinar, I will share examples from climate science that use a few of these visualization methods to peer into the “black box” of neural networks, which help us to better understand their decision-making process while also learning new science. The same machine learning visualization methods can be easily adapted for a wide variety of applications and other scientific fields of study.
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The popularity of machine learning, specifically neural networks, is rapidly growing in nearly all areas of science. The explosion of these methods also coincides with a growing influx of computationally expensive data sets and the need for high efficiency in solving predication problems. However, there is also some hesitancy in adopting the use of neural networks due to concerns about their reliability, reproducibility, and interpretability – thus, they are often described as “black boxes.”
In climate science, we often consider signal-to-noise problems to help disentangle human-caused climate change from natural variability. These applications typically involve complicated nonlinear relationships between different feedbacks at play in the ocean, land, and atmosphere. Recent work has shown that neural networks can be a promising tool for solving these types of statistical problems when combined with explainability techniques developed by the fields of computer science and image processing. Interestingly, these methods have revealed that neural networks often leverage regional patterns of climate change indicators in order to make their predictions. In this talk, I will share examples from climate science that use a few of these visualization methods to peer into the “black box” of neural networks, which help us to better understand their decision-making processes while also learning new science. The same machine learning visualization methods can be easily adapted for a wide variety of applications and other scientific fields of study.
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Labe, Z.M. and E.A. Barnes (2021), Detecting climate signals using explainable AI with single-forcing large ensembles. Journal of Advances in Modeling Earth Systems, DOI:10.1029/2021MS002464
Labe, Z.M. and E.A. Barnes (2022), Predicting slowdowns in decadal climate warming trends with explainable neural networks. Geophysical Research Letters, DOI:10.1029/2022GL098173
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Contrasting polar climate change in the past, present, and futureZachary Labe
28 September 2023…
Guest lecture for “Observing and Modeling Climate Change (EES 3506/5506)” (Presentation): Contrasting polar climate change in the past, present, and future, Temple University, Philadelphia, PA. Remote Presentation.
Guest Lecture: Our changing Arctic in the past and futureZachary Labe
22 August 2023…
Guest lecture for “Introduction to Global Climate Change (ESS 15)” (Invited): Our changing Arctic in the past and future, University of California, Irvine, CA. Remote Presentation.
References...
Delworth, T. L., Cooke, W. F., Adcroft, A., Bushuk, M., Chen, J. H., Dunne, K. A., ... & Zhao, M. (2020). SPEAR: The next generation GFDL modeling system for seasonal to multidecadal prediction and projection. Journal of Advances in Modeling Earth Systems, 12(3), e2019MS001895, https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019MS001895
Labe, Z.M. and E.A. Barnes (2022), Comparison of climate model large ensembles with observations in the Arctic using simple neural networks. Earth and Space Science, DOI:10.1029/2022EA002348, https://doi.org/10.1029/2022EA002348
Labe, Z.M., Y. Peings, and G. Magnusdottir (2020). Warm Arctic, cold Siberia pattern: role of full Arctic amplification versus sea ice loss alone, Geophysical Research Letters, DOI:10.1029/2020GL088583, https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL088583
Monitoring indicators of climate change through data-driven visualizationZachary Labe
19 June 2023…
La Uni Climática - IV Edition (Presentation): Monitoring indicators of climate change through data-driven visualization. Remote Presentation.
Career pathways and research opportunities in the Earth sciencesZachary Labe
20 April 2023…
Mercer County Community College (Presentation): Career pathways and research opportunities in the Earth sciences, West Windsor Township, NJ, USA.
24 March 2023…
NBCU Fellows Academy Workshop (Presentation): Telling data-driven climate stories, The City College of New York, USA. Remote Presentation.
Evaluating and communicating Arctic climate change projectionZachary Labe
20 February 2023…
Climate Change and Agriculture Guest (Presentation): Evaluating and communicating Arctic climate change projections, Kansas State University, USA.
References...
Delworth, T. L., Cooke, W. F., Adcroft, A., Bushuk, M., Chen, J. H., Dunne, K. A., ... & Zhao, M. (2020). SPEAR: The next generation GFDL modeling system for seasonal to multidecadal prediction and projection. Journal of Advances in Modeling Earth Systems, 12(3), e2019MS001895, https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019MS001895
Labe, Z.M. and E.A. Barnes (2022), Comparison of climate model large ensembles with observations in the Arctic using simple neural networks. Earth and Space Science, DOI:10.1029/2022EA002348, https://doi.org/10.1029/2022EA002348
Labe, Z.M., Y. Peings, and G. Magnusdottir (2020). Warm Arctic, cold Siberia pattern: role of full Arctic amplification versus sea ice loss alone, Geophysical Research Letters, DOI:10.1029/2020GL088583, https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL088583
Peings, Y., Cattiaux, J., Vavrus, S. J., & Magnusdottir, G. (2018). Projected squeezing of the wintertime North-Atlantic jet. Environmental Research Letters, 13(7), 074016, https://iopscience.iop.org/article/10.1088/1748-9326/aacc79/meta
Arctic climate through the lens of data visualizationZachary Labe
15 February 2023…
Rider University, Global Biogeochemistry Class Visit (Presentation): Arctic climate change through the lens of data visualization, NOAA GFDL, Princeton, USA.
References...
Delworth, T. L., Cooke, W. F., Adcroft, A., Bushuk, M., Chen, J. H., Dunne, K. A., ... & Zhao, M. (2020). SPEAR: The next generation GFDL modeling system for seasonal to multidecadal prediction and projection. Journal of Advances in Modeling Earth Systems, 12(3), e2019MS001895, https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019MS001895
Labe, Z.M., Y. Peings, and G. Magnusdottir (2019). The effect of QBO phase on the atmospheric response to projected Arctic sea ice loss in early winter, Geophysical Research Letters, DOI:10.1029/2019GL083095, https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019GL083095
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Using explainable machine learning to evaluate climate change projections
1. USING EXPLAINABLE MACHINE
LEARNING TO EVALUATE CLIMATE
CHANGE PROJECTIONS
https://zacklabe.com/ @ZLabe
Zachary M. Labe
Postdoc in Seasonal-to-Decadal Variability and Predictability Division
NOAA GFDL and Princeton University
with…
Elizabeth A. Barnes
Thomas L. Delworth
Nathaniel C. Johnson
5 October 2023 – Yale University
Atmosphere and Ocean Climate Dynamics Seminar
3. 1) Where do we
go from here?
2) How do we
disentangle
internal climate
variability?
Feb/Mar 2016
4. 3) How do we
account for
regional
patterns of
change?
5. Explainable machine learning can
distinguish between regional patterns
of time-evolving climate change
SIGNIFICANCE
6. Machine Learning
is not new!
“A Bayesian Neural Network for
Severe-Hail Prediction (2000)”
“Classification of Convective Areas
Using Decision Trees (2009)”
“A Neural Network for Damaging
Wind Prediction (1998)”
“Generative Additive Models versus
Linear Regression in Generating
Probabilistic MOS Forecasts of
Aviation Weather Parameters (1995)”
”A Neural Network for
Tornado Prediction
Based on Doppler
Radar-Derived
Attributes (1996)”
”The Diagnosis of
Upper-Level Humidity
(1968)”
7. “An adaptive data processing system for weather forecasting”
It’s a neural network!
[Hu and Root (1964), APME]
10. Do it better
e.g., parameterizations in climate models are not
perfect, use ML to make them more accurate
Do it faster
e.g., code in climate models is very slow (but we
know the right answer) - use ML methods to speed
things up
Do something new
• e.g., go looking for non-linear relationships you
didn’t know were there
WHY ELSE SHOULD WE CONSIDER
MACHINE LEARNING?
11. Do it better
e.g., parameterizations in climate models are not
perfect, use ML to make them more accurate
Do it faster
e.g., code in climate models is very slow (but we
know the right answer) - use ML methods to speed
things up
Do something new
• e.g., go looking for non-linear relationships you
didn’t know were there
Very relevant for
research: may be
slower and worse,
but can still learn
something
WHY ELSE SHOULD WE CONSIDER
MACHINE LEARNING?
12. Machine learning for meteorology
IDENTIFYING SEVERE THUNDERSTORMS
Molina et al. 2021
Martin et al. 2022
CLASSIFYING PHASE OF MADDEN-JULLIAN OSCILLATION
DETECTING CONVECTION FROM SATELLITES
Lee et al. 2021
LOCATING COLD FRONTS
Dagon et al. 2022
13. Machine learning for oceanography
CLASSIFYING ARCTIC OCEAN ACIDIFICATION
Krasting et al. 2022
LARGE-SCALE OCEAN CIRCULATION
Clare et al. 2022
ESTIMATING OCEAN SURFACE CURRENTS
Sinha and Abernathey, 2021
14. Machine learning for climate
PHYSICAL DRIVERS OF ENSO DYNAMICS
Shin et al. 2022
IDENTIFYING DECADAL STATE DEPENDENCE
Gordon and Barnes, 2022
INTERNAL/EXTERNAL CLIMATE FORCING
Po-Chedley et al. 2022
21. Artificial Neural Networks [ANN]
X1
X2
W1
W2
∑
INPUTS
NODE
Linear regression with non-linear
mapping by an “activation function”
Training of the network is merely
determining the weights “w” and
bias/offset “b"
= factivation(X1W1+ X2W2 + b)
22. Artificial Neural Networks [ANN]
X1
X2
W1
W2
∑
INPUTS
NODE
= factivation(X1W1+ X2W2 + b)
ReLU Sigmoid Linear
24. Complexity and nonlinearities of the ANN allow it to learn
many different pathways of predictable behavior
Once trained, you have an array of weights and biases
which can be used for prediction on new data
INPUT
[DATA]
PREDICTION
Artificial Neural Networks [ANN]
27. What is the annual mean temperature of Earth?
THE REAL WORLD
(Observations)
Let’s run a
climate model
One ensemble member
2022
1930 2050
Data
from
SPEAR_M
ED
28. What is the annual mean temperature of Earth?
THE REAL WORLD
(Observations)
Let’s run a
climate model
again!
Two ensemble members
Data
from
SPEAR_M
ED
29. What is the annual mean temperature of Earth?
THE REAL WORLD
(Observations)
Let’s run a
climate model
again & again!
Three ensemble members
Data
from
SPEAR_M
ED
30. What is the annual mean temperature of Earth?
THE REAL WORLD
(Observations)
CLIMATE MODEL
LARGE ENSEMBLE
30 ensemble
members in
GFDL SPEAR
31. What is the annual mean temperature of Earth?
THE REAL WORLD
(Observations)
CLIMATE MODEL
LARGE ENSEMBLE
NOAA GFDL – SPEAR_MED
Fully-Coupled (AM4/LM4/MOM6/SIS2)
Historical + SSP5-8.5
0.5° land/atmosphere, 1.0° ocean
also: LO, HI, HI_25 resolutions
https://www.gfdl.noaa.gov/spear/
30 ensemble
members in
GFDL SPEAR
32. What is the annual mean temperature of Earth?
Mean of ensembles
= forced response (climate change)
THE REAL WORLD
(Observations)
CLIMATE MODEL
LARGE ENSEMBLE
30
ensemble members
In GFDL SPEAR
33. What is the annual mean temperature of Earth?
Mean of ensembles
= forced response (climate change)
THE REAL WORLD
(Observations)
CLIMATE MODEL
LARGE ENSEMBLE
30
ensemble members
In GFDL SPEAR
Range of ensembles
= internal variability (noise)
Mean of ensembles
= forced response (climate change)
34. But let’s remove
climate change…
Climate Change Signal
(ensemble mean)
Observations
Ensemble
Members
42. Yearly Maps of T2M
Yearly Maps of T2M
Neural
Network
Classify
Climate
Scenario
Artificial
Neural
Network
Output
=
5
Classes
Yearly Maps of T2M
Neural
Network
Binary Output Binary Output
Step #1
Read in gridded maps of a
climate variable from
SPEAR simulations
43. Yearly Maps of T2M
Yearly Maps of T2M
Neural
Network
Classify
Climate
Scenario
Artificial
Neural
Network
Output
=
5
Classes
Yearly Maps of T2M
Neural
Network
Binary Output Binary Output
Step #2
Feed data into an
artificial neural network
with three hidden layers
44. Yearly Maps of T2M
Yearly Maps of T2M
Neural
Network
Classify
Climate
Scenario
Artificial
Neural
Network
Output
=
5
Classes
Yearly Maps of T2M
Neural
Network
Binary Output Binary Output
Step #3
Classify which climate
scenario (n=5) is
associated with each map
45. Yearly Maps of T2M
Yearly Maps of T2M
Neural
Network
Classify
Climate
Scenario
Artificial
Neural
Network
Output
=
5
Classes
Yearly Maps of T2M
Neural
Network
Binary Output Binary Output
Step #4
Why? à XAI
46. WHY
LAYER-WISE RELEVANCE PROPAGATION (LRP)
Volcano
Timber
Wolf
Image Classification LRP
LRP heatmaps show regions
of “relevance” that
contribute to the neural
network’s decision-making
process for a sample
belonging to a particular
output category
Neural Network
WHY
Backpropagation – LRP
https://heatmapping.org/
47. WHY
LAYER-WISE RELEVANCE PROPAGATION (LRP)
Volcano
Timber
Wolf
Image Classification LRP
LRP heatmaps show regions
of “relevance” that
contribute to the neural
network’s decision-making
process for a sample
belonging to a particular
output category
Neural Network
WHY
Backpropagation – LRP
https://heatmapping.org/
52. Neural
Network
[0] La Niña [1] El Niño
Input a map of sea surface temperatures
[Toms et al. 2020, JAMES]
53. Visualizing something we already know…
Input maps of sea surface
temperatures (SST) to
identify El Niño or La Niña
Use ‘LRP’ to see how the
neural network is making
its decision
[Toms et al. 2020, JAMES]
Layer-wise Relevance Propagation
Composite SST Observations
LRP [Relevance]
SST Anomaly [°C]
0.00 0.75
0.0 1.5
-1.5
Warmer
Colder
High
Low
63. What if we start
mitigation
10 years earlier?
Transition from
SSP5-8.5 to SSP2-4.5
Transition from
SSP5-8.5 to SSP2-4.5
Transition from
SSP2-4.5 to SSP1-1.9
2015 2060 2100
2015 2060 2100
64. What climate
patterns are
associated with
these transitions?
Transition from
SSP5-8.5 to SSP2-4.5
Transition from
SSP5-8.5 to SSP2-4.5
Transition from
SSP2-4.5 to SSP1-1.9
Rapid mitigation
Rapid mitigation
65. Difficult to distinguish
the patterns
associated with
each scenario
Composites of
relevance maps for
the mitigation
predictions
SSP5-3.4OS example for 2015 to 2100
Nearer to predicted scenario
Further from predicted scenario
67. XAI composites of years associated with the transition from SSP5-8.5 to SSP2-4.5
(a) approx. 2055-2060 (b) approx. 2040-2045
68. North Atlantic is an
important indictor
region for climate
signals related to
identifying from
SSP5-8.5 to SSP2-4.5
Future Climate Change Rapid Mitigation
69. Framework can be
applied to different
geographic regions
and climate variables
Parallel approach for
detecting climate
intervention scenarios
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the
regional emergence of climate patterns in the ARISE-SAI-1.5
simulations. EarthArXiv, DOI: 10.31223/X5394Z
70. Framework can be
applied to different
geographic regions
and climate variables
Parallel approach for
detecting climate
intervention scenarios
Labe, Z.M., E.A. Barnes, and J.W. Hurrell (2023). Identifying the
regional emergence of climate patterns in the ARISE-SAI-1.5
simulations. Environmental Research Letters, DOI:10.1088/1748-
9326/acc81a
73. Could we detect whether we were under the
influence of stratospheric aerosol injection (SAI)
using regional climate patterns?
74. Assessing Responses and Impacts of Solar
climate intervention on the Earth system with
Stratospheric Aerosol Injection
ARISE-SAI-1.5 (10 ensemble members each)
CESM2(WACCM6) for historical + SSP2-4.5
CESM2(WACCM6) for historical + SAI-1.5
88. N
Y
HIDDEN LAYERS
INPUT LAYER
INPUT LAYER
SAI WORLD?
or
or
map of near-surface temperature
map of near-surface temperature
map of total precipitation
map of total precipitation
Years Since
SAI Injection
OUTPUT
LOGISTIC
REGRESSION
ARTIFICAL
NEURAL
NETWORK
softmax
[Labe et al. 2023, ERL]
89. N
Y
HIDDEN LAYERS
INPUT LAYER
INPUT LAYER
SAI WORLD?
or
or
map of near-surface temperature
map of near-surface temperature
map of total precipitation
map of total precipitation
Years Since
SAI Injection
OUTPUT
LOGISTIC
REGRESSION
ARTIFICAL
NEURAL
NETWORK
softmax
[Labe et al. 2023, ERL]
97. N
Y
HIDDEN LAYERS
INPUT LAYER
INPUT LAYER
SAI WORLD?
or
or
map of near-surface temperature
map of near-surface temperature
map of total precipitation
map of total precipitation
Years Since
SAI Injection
OUTPUT
LOGISTIC
REGRESSION
ARTIFICAL
NEURAL
NETWORK
softmax
[Labe et al. 2023, ERL]
100. TAKEAWAYS
1. XAI can identify regional patterns of climate change and variability in large ensembles.
2. Method can identify differences in time-evolving forced climate signals between other
climate model large ensembles.
3. Framework can be adapted for monitoring and predicting patterns of climate change in
observations.
Zack Labe
zachary.labe@noaa.gov
5 October 2023
Atmosphere and Ocean Climate Dynamics Seminar – Yale University