Mesoscale and submesoscale dynamics and variability in the marginal ice zone from SAR data
编号:491 访问权限:仅限参会人 更新:2025-01-04 14:29:05 浏览:179次 张贴报告

报告开始:2025年01月16日 18:50(Asia/Shanghai)

报告时间:15min

所在会场:[S35] Session 35-Eddy Variability in the Ocean and Atmosphere: Dynamics, Parameterization and Prediction [S35-P] Eddy Variability in the Ocean and Atmosphere: Dynamics, Parameterization and Prediction

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摘要
Eddies play a crucial role in the global transport of heat, salt, and nutrients. They significantly influence ocean circulation and regional climate patterns, making their detection and analysis one of the key areas of oceanographic and climate research. In particular, the marginal ice zone, where ocean water meets sea ice, is a region of intense eddy activity, and understanding eddy variability in this region is essential for predicting changes in the Earth’s climate system. Spaceborne SAR data have become a primary source of information for monitoring eddies in the MIZ, where other sources fail to provide relevant information. The high-resolution capabilities of SAR allow for the detailed observation of ocean and sea ice surface features, including eddies on both the mesoscale and submesoscale levels. However, the sheer volume and complexity of SAR data necessitate the development of automated methods for accurate and efficient eddy detection.
In this study, we propose and verify an optimal approach for the automatic detection of eddies in the MIZ, specifically in the Fram Strait, a crucial gateway between the Arctic and Atlantic Oceans. Our  approach employs the YOLOv8 a state-of-the-art computer vision model for its speed and accuracy in object detection tasks. By applying this model to high-resolution SAR data, we aim to enhance the detection and classification of eddies in the region of interest. Based on the acquired time-series, we investigate the intensity of eddy generation, their properties and their seasonal variability in the MIZ regions of Fram Strait.
 
关键词
eddies,ocean mesoscale eddies, mesoscale eddies, marginal ice zone, Arctic
报告人
Nikita Sandalyuk
Senior researcher Moscow Institute of Physics and Technology

稿件作者
Nikita Sandalyuk Moscow Institute of Physics and Technology
Eduard Khachatrian UiT The Arctic University of Norway
Ekaterina Marchuk Obukhov Institute of Atmospheric Physics
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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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