电波科学学报2017，Vol.32Issue(3)：356-364,9.DOI:10.13443/j.cjors.2017052701
TIEGCM与IRI在中国垂测站的预测性能比较
Prediction performance comparison between TIEGCM and IRI over China ionosonde stations
摘要
Abstract
The thermosphere-ionosphere-electrodynamics general circulation model (TIEGCM) is a three-dimensional,time-dependent models of the coupled thermosphere/ionosphere system,which is developed by the High Altitude Observatory at the National Center for Atmospheric Research (NCAR/HAO).By comparing the height of the peak electron density of the F2-layer(hmF2) variation derived from TIEGCM with the output of IRI-2016(international reference ionosphere)model and the hmF2data collected from 12 digital ionosonde measurements in China,we analyze the forecast performance of TIEGCM in quiet geomagnetic activity of different seasons over China region.Results show that TIEGCM performed well in all ionosonde stations,and can be applied in certain ionospheric hmF2 parameter researches in China.The ability of TIEGCM to simulate ionospheric changes is about 25％ higher than IRI.To some extent,it can simulate ionosphere semi-annual anomaly and equatorial anomaly.Either compared with IRI or data observed,there is a certain deviation in TIEGCM.The deviation in low latitude region fluctuates greatly,and the same during sunrise and sunset,which can provide a theoretical reference for our potential modelcorrection.关键词
TIEGCM/电离层-热层耦合/hmF2/测高仪/IRIKey words
TIEGCM/Ionosphere-thermosphere coupling/hmF2/digital ionosonde measurements/IRI分类
天文与地球科学引用本文复制引用
宋方雷,甄卫民,於晓,欧明,陈亮..TIEGCM与IRI在中国垂测站的预测性能比较[J].电波科学学报,2017,32(3):356-364,9.基金项目
“十三五”预研技术项目——基于GNSS掩星和地基观测数据的电离层同化和预报技术(No.315030409) （No.315030409）
