Coronal Streamer Belt Morphology

日冕流带形态

• 批准号: 9421814
• 负责人: Nancy Crooker
• 金额: --
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9421814&HistoricalAwards=false
• 关键词: Coronal; Streamer; Belt; Morphology

A belt of streamers extending from a band encircling the sun comprise the densest portion of the solar corona. Recent research indicates, contrary to superposed epoch analysis of streamer belt data near Earth, this belt may be the source of coronal mass ejections (CMEs), which are responsible for geomagnetic storms. Data shows high variability, consistent with its activity in the heliosphere, yet few studies have focused on its complexities. This project's aim, at both basic and applied levels, is to (1) construct a morphological model of the streamer belt, and (2) establish a prediction scheme for geomagnetic storms. The investigator will draw from combined field and plasma parameter streamline constants, and analyze them to separate dynamic interplanetary effects from those of solar origin. The resulting streamer belt morphology data will serve as a basis for any future quantitative streamer belt module of a global circulation model of the heliosphere.***

从环绕太阳的带状物延伸出来的带状流光构成了日冕的致密部分。最近的研究表明，与地球附近流光带数据的叠加历元分析相反，这条带可能是日冕物质抛射（CME）的来源，这是磁暴的原因。数据显示其高度可变性，与其在日光层的活动一致，但很少有研究关注其复杂性。本计画的目的，在基础与应用两个层面上，是（1）建构流注带的形态模式，（2）建立磁暴的预测方案。研究人员将从综合场和等离子体参数流线常数中提取，并对其进行分析，以将动态行星际效应与太阳起源的效应分开。由此产生的流注带形态数据将作为今后日光层全球环流模型中任何流注带定量模块的基础。