globalchange  > 气候减缓与适应
DOI: 10.1002/2017JA024817
Scopus记录号: 2-s2.0-85042373336
论文题名:
Topside Electron Density Representations for Middle and High Latitudes: A Topside Parameterization for E-CHAIM Based On the NeQuick
作者: Themens D.R.; Jayachandran P.T.; Bilitza D.; Erickson P.J.; Häggström I.; Lyashenko M.V.; Reid B.; Varney R.H.; Pustovalova L.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:2
起始页码: 1603
结束页码: 1617
语种: 英语
英文关键词: E-CHAIM ; empirical modeling ; high latitude ; ionosphere ; NeQuick ; topside
英文摘要: In this study, we present a topside model representation to be used by the Empirical Canadian High Arctic Ionospheric Model (E-CHAIM). In the process of this, we also present a comprehensive evaluation of the NeQuick's, and by extension the International Reference Ionosphere's, topside electron density model for middle and high latitudes in the Northern Hemisphere. Using data gathered from all available incoherent scatter radars, topside sounders, and Global Navigation Satellite System Radio Occultation satellites, we show that the current NeQuick parameterization suboptimally represents the shape of the topside electron density profile at these latitudes and performs poorly in the representation of seasonal and solar cycle variations of the topside scale thickness. Despite this, the simple, one variable, NeQuick model is a powerful tool for modeling the topside ionosphere. By refitting the parameters that define the maximum topside scale thickness and the rate of increase of the scale height within the NeQuick topside model function, r and g, respectively, and refitting the model's parameterization of the scale height at the F region peak, H0, we find considerable improvement in the NeQuick's ability to represent the topside shape and behavior. Building on these results, we present a new topside model extension of the E-CHAIM based on the revised NeQuick function. Overall, root-mean-square errors in topside electron density are improved over the traditional International Reference Ionosphere/NeQuick topside by 31% for a new NeQuick parameterization and by 36% for a newly proposed topside for E-CHAIM. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114567
Appears in Collections:气候减缓与适应

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作者单位: Department of Physics, University of New Brunswick, Fredericton, NB, Canada; School of Physics, Astronomy, and Computational Sciences, George Mason University, Fairfax, VA, United States; Haystack Observatory, Massachusetts Institute of Technology, Cambridge, MA, United States; EISCAT Scientific Association, Kiruna, Sweden; Institute of Ionosphere, National Academy of Sciences of Ukraine and Ministry of Education and Science of Ukraine, Kharkiv, Ukraine; SRI International, Menlo Park, CA, United States; Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN), Moscow, Russian Federation

Recommended Citation:
Themens D.R.,Jayachandran P.T.,Bilitza D.,et al. Topside Electron Density Representations for Middle and High Latitudes: A Topside Parameterization for E-CHAIM Based On the NeQuick[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(2)
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