Validation of COSMIC ionospheric peak parameters by the measurements of an ionosonde chain in China
Validation of COSMIC ionospheric peak parameters by the measurements of an ionosonde chain in China
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通过中国电离探空仪链测量验证 COSMIC 电离层峰值参数
DOI：
10.5194/angeo-32-1311-2014
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发表时间：
2014-10
影响因子：
1.9
通讯作者：
Z. Wu
中科院分区：
文献类型：
--
作者：
Z. Huang;X. Hao;S. Chang;Z. Wu
抽象的。虽然在太阳活动最小期的电离层探测器数据已经验证了来自气象、电离层和气候星座观测系统（COSMIC）的电子密度廓线（EDP），但是COSMIC在不同纬度的观测性能还没有得到很好的评价，特别是在太阳活动最大期。本文利用2011-2013年太阳活动极大期中国电离层观测链的观测数据，对COSMIC电离层峰值参数（F区峰值电子密度-NmF 2; F区峰值高度-hmF 2）进行了验证。验证结果表明，COSMIC的观测结果与电离层探测仪的观测结果基本一致。COSMIC和电离层探测仪测量NmF 2的误差随纬度而变化。在中纬度台站，COSMIC NmF 2与电离层探测仪的差别很小。然而，COSMIC NmF 2高估（低估）的电离探空仪在赤道电离异常（EIA）峰的北（南）。各站hmF 2s的相对误差均远小于NmF 2s的相对误差，说明COSMIC测量的EDP反演算法在确定电离层峰值高度方面具有较好的性能。NmF 2s（hmF 2s）的均方根误差（RMSE）在白天高于（低于）在夜间的所有站。相关分析表明，在中纬度地区，NmF 2 s和hmF 2 s的相关性都很好（相关系数> 0.9），而在低纬度地区，NmF 2 s的相关性（相关系数> 0.9）高于hmF 2 s（相关系数> 0.8）。
Abstract. Although the electron density profiles (EDPs) from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) measurement have been validated by ionosonde data at a number of locations during the solar minimum period, the performance of COSMIC measurements at different latitudes has not been well evaluated, particularly during the solar maximum period. In this paper the COSMIC ionospheric peak parameters (peak electron density of the F region – NmF2; peak height of the F region – hmF2) are validated by the ionosonde data from an observation chain in China during the solar maximum period of 2011–2013. The validations show that the COSMIC measurement generally agrees well with the ionosonde observation. The error in NmF2 from COSMIC and ionosonde measurements varies with latitude. At midlatitude stations, the differences between COSMIC NmF2s and those of ionosondes are very slight. However, COSMIC NmF2 overestimates (underestimates) that of the ionosonde at the north (south) of the equatorial ionization anomaly (EIA) crest. The relative errors of hmF2s are much lower than those of NmF2s at all stations, which indicates the EDP retrieval algorithm of the COSMIC measurement has a better performance in determining the ionospheric peak height. The root mean square errors (RMSEs) of NmF2s (hmF2s) are higher (lower) during the daytime than during the nighttime at all stations. Correlation analysis shows that the correlations for both NmF2s and hmF2s are comparably good (correlation coefficients > 0.9) at midlatitude stations, while correlations of NmF2 (correlation coefficients > 0.9) are higher than those of hmF2 (correlation coefficients > 0.8) at low-latitude stations.
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三亚上空COSMIC测量与电离探空仪观测反演电离层峰值参数对比
影响因子：
2.6
作者：
Liu, Libo;Zhao, Biqiang;Chen, Yiding;Li, Guozhu
通讯作者：
Li, Guozhu
影响因子：
1.9
作者：
Y. Chuo;C. C. Lee-C.;W. S. Chen;B. Reinisch
通讯作者：
Y. Chuo;C. C. Lee-C.;W. S. Chen;B. Reinisch
DOI：
10.5047/eps.2011.03.001
发表时间：
2011-06
期刊：
Earth, Planets and Space
影响因子：
--
作者：
B. Reinisch;I. Galkin
通讯作者：
B. Reinisch;I. Galkin
影响因子：
4.4
作者：
A. Krankowski;I. Zakharenkova;A. Krypiak-Gregorczyk;I. Shagimuratov;P. Wielgosz
通讯作者：
A. Krankowski;I. Zakharenkova;A. Krypiak-Gregorczyk;I. Shagimuratov;P. Wielgosz
影响因子：
1.6
作者：
X. Yue;W. Schreiner;C. Rocken;Y. Kuo
通讯作者：
X. Yue;W. Schreiner;C. Rocken;Y. Kuo