{"title":"Wide-field aurora imager onboard Fengyun satellite: Data products and validation","authors":"GuangXing Ding, JiaWei Li, XiaoXin Zhang, Fei He, LingPing He, KeFei Song, Liang Sun, Shuang Dai, ShiJie Liu, Bo Chen, Chao Yu, XiuQing Hu, SongYan Gu, ZhongDong Yang, Peng Zhang","doi":"10.26464/epp2021003","DOIUrl":null,"url":null,"abstract":"<p>New observations of auroras based on the wide-field aurora imager (WAI) onboard Fengyun-3D (FY-3D) satellite are exhibited in this paper. Validity of the WAI data is analyzed by comparing auroral boundaries derived from WAI observations with results obtained from data collected by the Special Sensor Ultraviolet Spectrographic Imager (SSUSI) aboard the Defense Meteorological Satellite Program (DMSP F18). Dynamic variations of the aurora with the solar wind, interplanetary magnetic field (IMF) parameters, and the SYM-H index are also investigated. The comparison of auroral boundaries indicates that the WAI data are morphologically valid and suitable to the study of auroral dynamics. Effective responses to solar wind parameters indicate that the WAI data can be useful to monitor and predict the Earth's space weather. Since the configuration of aurora is a good indicator of the solar wind-magnetosphere-ionosphere (SW-M-I) coupling system, and can reflect the disturbance of the space environment, the WAI will provide important data to help us to study the physical processes in space.</p>","PeriodicalId":45246,"journal":{"name":"Earth and Planetary Physics","volume":"5 1","pages":"73-78"},"PeriodicalIF":2.9000,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.26464/epp2021003","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Earth and Planetary Physics","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.26464/epp2021003","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
New observations of auroras based on the wide-field aurora imager (WAI) onboard Fengyun-3D (FY-3D) satellite are exhibited in this paper. Validity of the WAI data is analyzed by comparing auroral boundaries derived from WAI observations with results obtained from data collected by the Special Sensor Ultraviolet Spectrographic Imager (SSUSI) aboard the Defense Meteorological Satellite Program (DMSP F18). Dynamic variations of the aurora with the solar wind, interplanetary magnetic field (IMF) parameters, and the SYM-H index are also investigated. The comparison of auroral boundaries indicates that the WAI data are morphologically valid and suitable to the study of auroral dynamics. Effective responses to solar wind parameters indicate that the WAI data can be useful to monitor and predict the Earth's space weather. Since the configuration of aurora is a good indicator of the solar wind-magnetosphere-ionosphere (SW-M-I) coupling system, and can reflect the disturbance of the space environment, the WAI will provide important data to help us to study the physical processes in space.
本文介绍了利用风云- 3d (FY-3D)卫星上的宽视场极光成像仪(WAI)观测到的新极光。通过将WAI观测得到的极光边界与国防气象卫星计划(DMSP F18)上的特殊传感器紫外光谱成像仪(SSUSI)收集的数据进行比较，分析了WAI数据的有效性。研究了极光随太阳风、行星际磁场(IMF)参数和SYM-H指数的动态变化。极光边界的对比表明，WAI数据在形态上是有效的，适合于极光动力学的研究。对太阳风参数的有效响应表明WAI数据可用于监测和预测地球空间天气。由于极光的形态是太阳风-磁层-电离层(SW-M-I)耦合系统的良好指标，可以反映空间环境的扰动，因此WAI将为我们研究空间物理过程提供重要数据。
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