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arXiv 2302.03258cs.LG
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基于统计物理原理的AI模型气候干预分析

Climate Intervention Analysis using AI Model Guided by Statistical Physics Principles

Palo Alto Research Center(帕洛阿尔托研究中心);University of California, San Diego(加州大学圣迭戈分校);University of Victoria(维多利亚大学);Excarta;University of Washington(华盛顿大学)

Soo Kyung Kim, Kalai Ramea, Salva Rühling Cachay, Haruki Hirasawa, Subhashis Hazarika, Dipti Hingmire, Peetak Mitra, Philip J. Rasch, Hansi A. Singh

摘要:

训练数据的可用性仍然是在科学应用中实施机器学习的重大障碍。特别是,估计系统如何响应外部强迫或扰动需要专门的标记数据或有针对性的模拟,这可能是计算密集型的,以大规模生成。在这项研究中,我们提出了一种新的解决方案来应对这一挑战,即利用统计物理学中被称为波动耗散定理(FDT)的原理,使用AI模型来发现知识,该模型可以快速生成不同外部作用力的场景。通过利用FDT,我们能够提取编码在地球系统模型产生的大型数据集中的信息,其中包括8250年的内部气候波动,以估计气候系统对强迫的响应。我们的模型AiBEDO能够捕获辐射扰动对全球和区域地表气候的复杂,多时间尺度的影响,从而大大加快了对空间异质气候因子影响的探索。为了证明AiBEDO的实用性,我们使用了一种名为海洋云增亮的气候干预技术,其最终目标是优化云增亮的空间模式,以实现区域气候目标并防止已知的气候临界点。虽然我们展示了我们的方法在气候科学背景下的有效性,但它通常适用于受到域模拟模型广泛计算需求限制的其他科学学科。AiBEDO框架的源代码可在https://github.com/kramea/kdd_aibedo上获得。示例数据集可在https://doi.org/10.5281/zenodo.7597027上获得。可根据要求提供其他数据。

英文摘要:

The availability of training data remains a significant obstacle for the implementation of machine learning in scientific applications. In particular, estimating how a system might respond to external forcings or perturbations requires specialized labeled data or targeted simulations, which may be computationally intensive to generate at scale. In this study, we propose a novel solution to this challenge by utilizing a principle from statistical physics known as the Fluctuation-Dissipation Theorem (FDT) to discover knowledge using an AI model that can rapidly produce scenarios for different external forcings. By leveraging FDT, we are able to extract information encoded in a large dataset produced by Earth System Models, which includes 8250 years of internal climate fluctuations, to estimate the climate system's response to forcings. Our model, AiBEDO, is capable of capturing the complex, multi-timescale effects of radiation perturbations on global and regional surface climate, allowing for a substantial acceleration of the exploration of the impacts of spatially-heterogenous climate forcers. To demonstrate the utility of AiBEDO, we use the example of a climate intervention technique called Marine Cloud Brightening, with the ultimate goal of optimizing the spatial pattern of cloud brightening to achieve regional climate targets and prevent known climate tipping points. While we showcase the effectiveness of our approach in the context of climate science, it is generally applicable to other scientific disciplines that are limited by the extensive computational demands of domain simulation models. Source code of AiBEDO framework is made available at https://github.com/kramea/kdd_aibedo. A sample dataset is made available at https://doi.org/10.5281/zenodo.7597027. Additional data available upon request.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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