An empirical model of L-band scintillation S4 index constructed by using FORMOSAT-3/COSMIC data

被引：26

作者：

Chen, Shih-Ping ^{[1
]}

Bilitza, Dieter ^{[2
,3
]}

Liu, Jann-Yenq ^{[1
]}

Caton, Ronald ^{[4
]}

Chang, Loren C. ^{[1
]}

Yeh, Wen-Hao ^{[5
]}

机构：

[1] Natl Cent Univ, Inst Space Sci, Taoyuan 32001, Taiwan

[2] George Mason Univ, Dept Phys & Astron, Fairfax, VA 22030 USA

[3] NASA, GSFC, Heliospher Lab, Greenbelt, MD 20771 USA

[4] Air Force Res Lab, Kirtland AFB, NM 87117 USA

[5] Natl Space Org, Hsinchu 30078, Taiwan

来源：

ADVANCES IN SPACE RESEARCH | 2017年 / 60卷 / 05期

关键词：

S4; scintillation; FORMOSAT-3/COSMIC; Global Navigation Satellite System (GNSS); IONOSPHERIC DENSITY IRREGULARITIES; INTERNATIONAL REFERENCE IONOSPHERE; EQUATORIAL SCINTILLATION; RADIO OCCULTATION; SOLAR MAXIMUM; VHF-UHF; FORMOSAT-7/COSMIC-2; INTENSITY; PROFILES; MISSION;

D O I：

10.1016/j.asr.2017.05.031

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Modern society relies heavily on the Global Navigation Satellite System (GNSS) technology for applications such as satellite communication, navigation, and positioning on the ground and/or aviation in the troposphere/stratosphere. However, ionospheric scintillations can severely impact GNSS systems and their related applications. In this study, a global empirical ionospheric scintillation model is constructed with S4-index data obtained by the FORMOSAT-3/COSMIC (F3/C) satellites during 2007-2014 (hereafter referred to as the F3CGS4 model). This model describes the S4-index as a function of local time, day of year, dip-latitude, and solar activity using the index PF10.7. The model reproduces the F3/C S4-index observations well, and yields good agreement with ground-based reception of satellite signals. This confirms that the constructed model can be used to forecast global L-band scintillations on the ground and in the near surface atmosphere. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：1015 / 1028

页数：14

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