| 风云二号C/D卫星与GOES卫星太阳X射线探测数据交叉比对 |
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| 引用本文： | 于超,李嘉巍,张效信,李传起,王春琴,王世金.风云二号C/D卫星与GOES卫星太阳X射线探测数据交叉比对[J].地球物理学报,2012,55(9):2835-2842. |
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| 作者姓名： | 于超 李嘉巍 张效信 李传起 王春琴 王世金 |
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| 作者单位： | 1. 南京信息工程大学数学与统计学院, 南京 210044;2. 国家空间天气监测预警中心, 北京 100081;3. 中国科学院空间科学与应用研究中心, 北京 100080 |
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| 基金项目： | 国家自然科学基金项目，国家863计划重点项目，973项目，公益性(气象)行业专项 |
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| 摘 要： | 风云二号卫星是我国研制的第一代静止业务气象卫星.本文针对风云二号C星/D星(FY-2C/D)太阳X射线探测数据与美国GOES系列卫星太阳X射线探测数据开展交叉比对,以检验FY-2C/D卫星数据的有效性.研究结果表明在X射线通量变化的时间特性以及通量大小等方面,FY-2C/D卫星探测结果与GOES系列卫星探测结果具有较好的一致性.对2004年11月—2010年6月期间85次耀斑事件X射线峰值流量的比对结果表明,FY-2C卫星与GOES系列卫星的探测结果在1~8 Å波段的相关系数为0.795,FY-2D卫星与GOES系列卫星的探测结果在0.5~3 Å和1~8 Å波段的相关系数分别为0.921和0.989,说明FY-2C/D卫星太阳X射线探测结果可信度较高,能够用于太阳X射线耀斑的监测、预警以及研究工作.
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| 关 键 词： | FY-2C/D卫星 GOES卫星 太阳X射线通量 耀斑 交叉比对 |
| 收稿时间： | 2011-12-09 |
Cross comparison of solar X-ray data between FY-2C/D satellite and GOES satellite |
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| YU Chao
,
LI Jia-Wei
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ZHANG Xiao-Xin
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LI Chuan-Qi
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WANG Chun-Qin
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WANG Shi-Jin.Cross comparison of solar X-ray data between FY-2C/D satellite and GOES satellite[J].Chinese Journal of Geophysics,2012,55(9):2835-2842. |
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| Authors: | YU Chao LI Jia-Wei ZHANG Xiao-Xin LI Chuan-Qi WANG Chun-Qin WANG Shi-Jin |
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| Institution: | 1. School of Mathematics & Statistics, Nanjing University of Information Science & Technology, Nanjing 210044, China;2. National Center for Space Weather, Beijing 100081, China;3. Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Fengyun 2 (FY-2) satellite is the first generation of geostationary meteorological satellite of China. The solar X-ray detector aboard on the FY-2C/D satellite has the capability to observe the solar X-ray flux of >5.18 keV and >3.27 keV, respectively. For the purpose of examining the effectiveness of the FY-2C/D satellite X-ray data, we compare them with the similar data of the GOES satellites, and find that these two categories of data fit well in the temporal characters and X-ray flux during solar flare events. By the cross comparison of the X-ray peak flux for 85 solar flare events from November 2004 to June 2010, it is found that the linear correlation coefficient is 0.795 between the data of FY-2C and GOES satellites in 1~8 Å, and the corresponding coefficients are 0.921 and 0.989 between the data of FY-2D and GOES satellites in 0.5~3 Å and 1~8 Å. The results indicate that the quality of FY-2C/D satellite solar X-ray data is quite well for the monitoring, warning and research of the solar X-ray flare events. |
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| Keywords: | FY-2C/D satellite GOES satellite Solar X-ray flux Flare Cross comparison |
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