Applying deep learning to rendering extreme marine environments
编号:1458 访问权限:仅限参会人 更新:2025-01-04 12:51:30 浏览:195次 张贴报告

报告开始:2025年01月15日 19:50(Asia/Shanghai)

报告时间:15min

所在会场:[S32] Session 32-Digital Twins of the Ocean (DTO) and Its Applications [S32-P] Digital Twins of the Ocean (DTO) and Its Applications

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摘要
In extreme weather events such as hurricanes, floods, and droughts, the ocean is not only an important part of the climate system, but also affects weather patterns through changes in its temperature, salinity, and ocean currents. Changes in the ocean's significant wave height, ocean currents, and sea surface temperature play a key role in the formation and development of extreme weather events. Current numerical forecast models for extreme weather cannot intuitively express their impact on the Earth's environment. To better understand and predict these extreme weather events, we propose a controllable diffusion model for simulating extreme weather phenomena, combining reconstructed scenes with real precipitation data to enrich the dataset and consider multiple interactions between the ocean and the atmosphere. Our proposed method introduces an adaptive weight adjustment mechanism for extreme precipitation events to improve the sensitivity and response speed of the ControlNet model to ocean temperature anomalies (such as El Niño) and atmospheric circulation changes. By adding a permutation self-attention module to the model, the order or arrangement of features is changed, thereby enhancing the model's understanding of the interactive features between the ocean and the atmosphere, especially the impact of ocean current anomalies and ocean heat content distribution on precipitation patterns. In addition, we integrate multi-source data for the regulation and prediction of extreme precipitation, including ocean current data, wave data and precipitation radar data observed by satellite, to form a comprehensive multimodal prediction framework. This framework is not only applicable to flood and precipitation events on land, but also to the prediction of ocean-related disasters. The user interface based on the model can generate accurate extreme precipitation and marine disaster prediction results, providing strong support for relevant decision-making. Qualitative and quantitative studies show that our model can better capture the complex dynamic changes of extreme precipitation events, especially in simulating the impact of the ocean on extreme weather and marine disasters. In all comparative experiments, our simulation results are sota current comparison methods in terms of authenticity and accuracy.
关键词
extreme weather, ocean, scene rendering
报告人
Chenchen He
Master Chengdu University of Information Technology

稿件作者
Chenchen He Chengdu University of Information Technology
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重要日期
  • 会议日期

    01月13日

    2025

    01月17日

    2025

  • 09月27日 2024

    初稿截稿日期

  • 01月17日 2025

    注册截止日期

主办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
承办单位
State Key Laboratory of Marine Environmental Science, Xiamen University
Department of Earth Sciences, National Natural Science Foundation of China
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