中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
High-Resolution and Accurate Low-Latitude Gridded Electron Density Generation and Evaluation

文献类型：期刊论文

作者He, Jianhui1,2,3; Yue, Xinan1,2,3; Le, Huijun1,2,3; Ren, Zhipeng1,2,3; Ding, Feng1,2,3
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2022-04-01
卷号127期号:4页码:15
ISSN号2169-9380
DOI10.1029/2021JA030192
英文摘要The accurate specification of three-dimensional (3-D) ionosphere states is crucial to positioning, navigation, and communication systems, especially in low-latitude and equatorial regions. In this work, the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC-2) radio occultation total electron content was assimilated around a whole year from October 2020 to September 2021 via the Kalman filter (KF) data assimilation system. This system includes an empirical ionosphere background model and the KF data assimilation algorithm. Accurate 3-D ionosphere data assimilation results were produced hourly with spatial resolutions of 2 degrees latitude, 5 degrees longitude, and 20 km height in low-latitude and equatorial regions. First, the results were validated by Massachusetts Institute of Technology vertical total electron content and global ionosonde data. The ionosphere vertical total electron content and the critical frequency at the F2 layer agree well with the independent observations. Then, a general ionosphere climatological pattern is found in the reconstructed 3D ionosphere results, including seasonal variation, annual asymmetry, and December anomaly. In addition, the results can well capture the daily spatial and temporal ionospheric variations in the day-to-day variability, the longitudinal wave 4 structures, and the interhemispheric asymmetry transition of the equatorial ionization anomaly crests. The current results demonstrate that assimilating COSMIC-2 TEC observations can further improve the 3D ionosphere specification in low-latitude and equatorial regions and can also contribute to physical research on ionosphere variability characteristics.
WOS关键词IONOSPHERE ; CIRCULATION ; MODEL
资助项目Project of Stable Support for Youth Team in Basic Research Field, CAS[YSBR-018] ; B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; Open Research Project of Large Research Infrastructures ; International Partnership Program Of Chinese Academy of Sciences[183311KYSB20200003] ; National Natural Science Foundation of China[42104160]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000777617500001
出版者AMER GEOPHYSICAL UNION
资助机构Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; Open Research Project of Large Research Infrastructures ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; International Partnership Program Of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/105073]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Yue, Xinan
作者单位1.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 He, Jianhui,Yue, Xinan,Le, Huijun,et al. High-Resolution and Accurate Low-Latitude Gridded Electron Density Generation and Evaluation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2022,127(4):15.
APA He, Jianhui,Yue, Xinan,Le, Huijun,Ren, Zhipeng,&Ding, Feng.(2022).High-Resolution and Accurate Low-Latitude Gridded Electron Density Generation and Evaluation.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,127(4),15.
MLA He, Jianhui,et al."High-Resolution and Accurate Low-Latitude Gridded Electron Density Generation and Evaluation".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 127.4(2022):15.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。