NSSC OpenIR
ERROR ANALYSIS ON NMF2 PREDICTED BY IRI-2016 MODEL DURING GEOMAGNETIC QUIET AND STORM PERIODS
Alternative TitleWOS:000519270602028
Bai, Weihua1,2,3,4; Tan, Guangyuan1,2,3,4; Sun, Yueqiang1,2,3,4; Du, Qifei1,2,3,4; Xia, Junming1,2,3,4
Source Publication2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019)
2019
Pages1927-1930
Language英语
ISSN2153-6996
ISBN978-1-5386-9154-0
AbstractThe International Reference Ionosphere (IRI) is an ionospheric empirical model established by assimilation and fusion of different kinds of ionospheric observation data, which can provide ionospheric parameters such as NmF2, hmF2, TEC in the range of 50-2000 km given a specified position and time. Accuracy verification of the model can provide an important scientific reference for its accuracy improvement and a priori condition for its subsequent applications. In this work, the NmF2 observed by the Global Navigation Satellite System (GNSS) occultation sounder (GNOS) mounted on FY3C(FY3C/GNOS) during geomagnetic quiet and storm periods are compared with the corresponding predictions of IRI-2016 to evaluate the error characteristics of the IRI-2016 model. After the comparison of median values of NmF2 in 9ox18o grids, we get that IRI-2016 model overestimates NmF2 compared to those of FY3C/GNOS no matter in quiet period or storm period. The biases of NmF2 relative errors between IRI-2016 and FY3C/GNOS are 10.02% and 26.88% in quiet and storm period, respectively. The results indicate the precision consistency between IRI-2016 and FY3C/GNOS in quiet period and the accuracy decrease of IRI-2016 in storm period. We also find that the NmF2 prediction accuracy of IRI-2016 at daytime are better than that at nighttime in both quiet and storm period, which is probably due to the absence of strong daytime photochemical control in F2 layer at nighttime and the time-varying ionospheric plasma irregularities after midnight.
KeywordIRI model Radio Occultation FY3C/GNOS NmF2
Conference NameIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 28-AUG 02, 2019
Conference PlaceYokohama, JAPAN
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7782
Collection中国科学院国家空间科学中心
Affiliation1.Chinese Acad Sci, NSSC, Beijing, Peoples R China
2.Beijing Key Lab Space Environm Explorat, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China
4.Chinese Acad Sci, JLOAC, NSSC, Beijing, Peoples R China
5.Karl Franzens Univ Graz, Graz, Austria
Recommended Citation
GB/T 7714
Bai, Weihua,Tan, Guangyuan,Sun, Yueqiang,et al. ERROR ANALYSIS ON NMF2 PREDICTED BY IRI-2016 MODEL DURING GEOMAGNETIC QUIET AND STORM PERIODS[C],2019:1927-1930.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Bai, Weihua]'s Articles
[Tan, Guangyuan]'s Articles
[Sun, Yueqiang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Bai, Weihua]'s Articles
[Tan, Guangyuan]'s Articles
[Sun, Yueqiang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Bai, Weihua]'s Articles
[Tan, Guangyuan]'s Articles
[Sun, Yueqiang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.