Automated Ionospheric Scattering Layer Hypothesis Generation for Detected and Classified Auroral Global Positioning System Scintillation Events
Automated Ionospheric Scattering Layer Hypothesis Generation for Detected and Classified Auroral Global Positioning System Scintillation Events
复制标题
针对检测和分类的极光全球定位系统闪烁事件自动生成电离层散射层假设
DOI:
10.1029/2018rs006779
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发表时间:
2020
期刊:
影响因子:
1.6
通讯作者:
Datta‐Barua, Seebany
中科院分区:
文献类型:
--
作者:
Sreenivash, Vaishnavi;Su, Yang;Datta‐Barua, Seebany
We describe a method to detect and classify global positioning system (GPS) scintillation, and then hypothesize a possible ionospheric layer scattering the signal. The objective is to routinely identify events of interest to investigate in detail in future work. Scintillation types include amplitude, phase, or both amplitude and phase. A scintillation event is one for which a scintillation index remains above a threshold across a majority of closely spaced receivers viewing a single satellite. Events are categorized by signal frequency and scintillation type. An event is then hypothesized to be due to the E or F layer using an independent data source. Data from the scintillation auroral GPS array located in Poker Flat Research Range, Alaska, are used to analyze L1 and L2C frequencies in 2014 and 2015. The irregularity layer associated with each scintillation event is hypothesized to be due to the activity in the E layer of the ionosphere (below 150 km) or in the F layer (above 195 km) using collocated Poker Flat Incoherent Scatter Radar electron density measurements. Events in a transition layer (150–195 km) and inconclusive results are also recorded. We find that nearly all of the over 4,000 events are phase scintillations. The majority of the events are hypothesized to occur when the peak density is at E-layer altitudes. This indicates that E-layer-related scintillation may be quite common at auroral latitudes and that GPS receivers are sensitive to the irregularities occurring both there and at F layer altitudes.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Yang Su;S. Datta‐Barua;G. Bust;K. Deshpande
通讯作者:
K. Deshpande
影响因子:
5.2
作者:
Datta-Barua S;Su Y;Deshpande K;Miladinovich D;Bust GS;Hampton D;Crowley G
通讯作者:
Crowley G
DOI:
10.1029/2018ja025759
发表时间:
2019-02
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
--
作者:
A. McCaffrey;P. Jayachandran
通讯作者:
A. McCaffrey;P. Jayachandran
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
R. Makarevich;W. Bristow
通讯作者:
W. Bristow
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
J. Semeter;M. Hirsch;F. Lind;A. Coster;P. Erickson;V. Pankratius
通讯作者:
V. Pankratius