SHINE: Separating the Dynamic and Quiescent Corona: A New Tool for the Detection and Analysis of Coronal Mass Ejections (CMEs)

SHINE：分离动态和静态日冕：检测和分析日冕物质抛射 (CME) 的新工具

• 批准号: 0962716
• 负责人: Huw Morgan
• 金额: $ 41.61万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-01 至 2014-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0962716&HistoricalAwards=false
• 关键词: SHINE; Separating; Dynamic; Quiescent; Corona

The team will investigate the dynamic restructuring of the magnetic field and plasma within coronal mass ejections (CMEs) and background solar corona, as CME disturbances propagate and expand through the heliosphere. In this study, the Principal Investigator (PI) will exploit a recently developed technique which enables, for the first time, the isolation of a CME signal from the background corona in space-based and ground-based coronagraph images at fine resolution. By clearly separating the CME disturbance from ambient coronal plasma structures, the PI's team expects to determine the response of the coronal magnetic field and heliospheric plasma to such disturbances. Using this new method, the PI will greatly improve the detection and classification of CME events, from large CMEs down to faint plasma blobs at the level of instrumental noise, enabling a more detailed statistical study of CMEs. He will also be able to create 3D plasma density maps of the corona over a solar cycle, and such maps will be extremely useful for coronal modeling, for interpreting heliospheric plasma observations, and for direct study of the height of the corona and its temporal evolution.This investigation of the initiation and propagation of CMEs will increase our understanding of the fundamental properties of astrophysical shock development and propagation in general, and enable the development of predictive tools for when CME disturbances could have a significant impact on the Earth's space environment. The PI's online CME database will be made accessible to the public, with special sections designed for explaining to non-scientists the nature of CMEs and their potential impact on the Earth. The techniques developed here for CME separation and detection will be useful to the wider image processing community.

该团队将研究冠状质量弹出（CMES）和背景太阳电晕内磁场和等离子体的动态重组，因为CME干扰繁殖并通过Heliosphere扩展。在这项研究中，首席研究员（PI）将利用最近开发的技术，该技术首次以精细分辨率以太空基于空间和地面的coronagraph图像中的CME信号隔离。通过将CME干扰与环境冠状血浆结构分开，PI的团队希望确定冠状磁场和Heliospheric血浆对此类干扰的响应。使用这种新方法，PI将大大改善CME事件的检测和分类，从大型CME到仪器噪声水平的微弱等离子体斑点，从而实现了CMES更详细的统计研究。他还将能够在太阳周期内创建电晕的3D血浆密度图，并且此类地图将对冠状建模，解释地球层观测以及对电晕的高度进行直接研究非常有用开发何时CME干扰的预测工具可能会对地球的太空环境产生重大影响。 PI的在线CME数据库将被公众访问，特殊部分旨在向非科学家解释CMES的性质及其对地球的潜在影响。此处开发的用于CME分离和检测的技术将对更广泛的图像处理社区有用。