First light from a kilometer-baseline Scintillation Auroral GPS Array

被引：22

作者：

Datta-Barua, S. ^{[1
]}

Su, Y. ^{[1
]}

Deshpande, K. ^{[2
]}

Miladinovich, D. ^{[1
]}

Bust, G. S. ^{[3
]}

Hampton, D. ^{[4
]}

Crowley, G. ^{[5
]}

机构：

[1] IIT, Mech Mat & Aerosp Engn Dept, Chicago, IL 60616 USA

[2] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA

[3] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA

[4] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA

[5] Atmospher & Space Technol Res Associates, Boulder, CO USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2015年 / 42卷 / 10期

基金：

美国国家科学基金会;

关键词：

scintillation; ionosphere; aurora; Global Positioning System; Global Navigation Satellite Systems; irregularities; SOFTWARE RECEIVER; IONOSPHERE; RADAR; TEC;

D O I：

10.1002/2015GL063556

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We introduce and analyze the first data from an array of closely spaced Global Positioning System (GPS) scintillation receivers established in the auroral zone in late 2013 to measure spatial and temporal variations in L band signals at 100-1000 m and subsecond scales. The seven receivers of the Scintillation Auroral GPS Array (SAGA) are sited at Poker Flat Research Range, Alaska. The receivers produce 100s scintillation indices and 100Hz carrier phase and raw in-phase and quadrature-phase samples. SAGA is the largest existing array with baseline lengths of the ionospheric diffractive Fresnel scale at L band. With an initial array of five receivers, we identify a period of simultaneous amplitude and phase scintillation. We compare SAGA power and phase data with collocated 630.0nm all-sky images of an auroral arc and incoherent scatter radar electron precipitation measurements, to illustrate how SAGA can be used in multi-instrument observations for subkilometer-scale studies.

引用

页码：3639 / 3646

页数：8

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