Space Weather: Applications of Global Oscillations Network Group (GONG+) Magnetograms

空间天气：全球振荡网络组 (GONG) 磁图的应用

• 批准号: 0208500
• 负责人: Yan LI
• 金额: $ 14.62万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-06-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0208500&HistoricalAwards=false
• 关键词: Space; Weather; Applications; Global; Oscillations

Global Oscillations Network Group (GONG+) magnetograms will be employed as the principal data set to study the evolution of the solar photospheric magnetic field, and its relationship with coronal mass ejections (CMEs). Potential-field source-surface (PFSS) coronal models will be constructed using the GONG+ data to specify the inner boundary condition. These will form the basis for the synthesis of specialized synoptic maps aimed at, (1) establishing the location of source surface magnetic neutral lines, (2) predicting solar wind characteristics based on the Wang-Sheeley model, and (3) delineating the evolution of open and close magnetic field regions. This information will be posted on a real time updated web site and delivered to the NOAA/Space Environment Center website. This effort will be essential for understanding the impacts of active region emergence and fragmentation on the evolution of the large-scale coronal magnetic field.

全球振荡网络小组（GONG+）的磁图将被用作研究太阳光球磁场演变及其与日冕物质抛射的关系的主要数据集。势场源面（PFSS）日冕模型将使用GONG+数据来指定内部边界条件。这些将构成合成专门天气图的基础，目的是：（1）确定源表面磁中性线的位置，（2）根据Wang-Sheeley模型预测太阳风特征，（3）描绘开放和封闭磁场区域的演变。这些信息将张贴在一个真实的实时更新的网站上，并传送到诺阿/空间环境中心网站。这项工作对于了解活动区的出现和碎裂对大规模日冕磁场演变的影响至关重要。