空间科学学报2011，Vol.31Issue(6)：771-777,7.
厦门电离层垂测仪电子浓度剖面最优插值同化的初步建立
An OI-based Assimilation Method of Vertical Ionospheric Electron Density Profile Over Xiamen
摘要
Abstract
By comparing the development of data assimilation in meteorology, Optimal Interpolation （OI） assimilation in one-dimension ionosphere is introduced. OI assimilation is a method that minimizes error variance of analysis by non-linear least-squares. Based on IGGCAS1D （Institute of Geology and Geophysics, Chinese Academy of Sciences 1 Dimension） model and Xiamen digital ionosonde observations, OI assimilation has been validated by simulation experiments. The detailed information of observations is that, 11：00UT 15 June, 11：00UT 22 July, 11：15UT 31 August, 2009, respectively. The results show that analysis conforms to observation even if the model background is far away from it and that OI assimilation is validated. After that, using one of the results from simulation experiments （11：15 UT, 31 August 2009）, a residual prediction is introduced. The result of residual prediction accords with observation very well. From and observation, it can be concluded that the residual prediction in future. the difference between is a worthy method to prediction be verified关键词
最优插值同化/垂测仪/同化试验/分析预报Key words
Optimal Interpolation （OI） assimilation/Ionosonde/Assimilation experiments,Residual prediction分类
天文与地球科学引用本文复制引用
王勇,林兆祥,余涛..厦门电离层垂测仪电子浓度剖面最优插值同化的初步建立[J].空间科学学报,2011,31(6):771-777,7.基金项目
国家自然科学基金项目资助（40974094）致谢理论模式IGGCAS1D由中国科学院地质与地球物理研究所提供,厦门电离层观测数据由国家空间天气监测预警中心提供. （）
