High‐Frequency Communications Response to Solar Activity in September 2017 as Observed by Amateur Radio Networks
High‐Frequency Communications Response to Solar Activity in September 2017 as Observed by Amateur Radio Networks
复制标题
业余无线电网络观测到的 2017 年 9 月太阳活动高频通信响应
DOI:
10.1029/2018sw002008
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发表时间:
2019
期刊:
影响因子:
3.7
通讯作者:
Bortnik, Jacob
中科院分区:
文献类型:
--
作者:
Frissell, Nathaniel A.;Vega, Joshua S.;Markowitz, Evan;Gerrard, Andrew J.;Engelke, William D.;Erickson, Philip J.;Miller, Ethan S.;Luetzelschwab, R. Carl;Bortnik, Jacob
Numerous solar flares and coronal mass ejection‐induced interplanetary shocks associated with solar active region AR12673 caused disturbances to terrestrial high‐frequency (HF, 3–30 MHz) radio communications from 4–14 September 2017. Simultaneously, Hurricanes Irma and Jose caused significant damage to the Caribbean Islands and parts of Florida. The coincidental timing of both the space weather activity and hurricanes was unfortunate, as HF radio was needed for emergency communications. This paper presents the response of HF amateur radio propagation as observed by the Reverse Beacon Network and the Weak Signal Propagation Reporting Network to the space weather events of that period. Distributed data coverage from these dense sources provided a unique mix of global and regional coverage of ionospheric response and recovery that revealed several features of storm time HF propagation dynamics. X‐class flares on 6, 7, and 10 September caused acute radio blackouts during the day in the Caribbean with recovery times of tens of minutes to hours, based on the decay time of the flare. A severe geomagnetic storm withKpmax= 8+ and SYM‐Hmin= −146 nT occurring 7–10 September wiped out ionospheric communications first on 14 MHz and then on 7 MHz starting at ∼1200 UT 8 September. This storm, combined with affects from additional flare and geomagnetic activity, contributed to a significant suppression of effective HF propagation bands both globally and in the Caribbean for a period of 12 to 15 days.
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DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
N. Frissell;E. Miller;S. Kaeppler;F. Ceglia;D. Pascoe;N. Sinanis;P. Smith;R. Williams;A. Shovkoplyas
通讯作者:
A. Shovkoplyas
DOI:
10.6028/jres.068d.111
发表时间:
1964
期刊:
Journal of Research of the National Bureau of Standards, Section D: Radio Science
影响因子:
--
作者:
R. Benson
通讯作者:
R. Benson
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
B. Poppe
通讯作者:
B. Poppe
影响因子:
1.6
作者:
L. McNamara;T. Bullett;E. Mishin;Y. Yampolski
通讯作者:
Y. Yampolski
影响因子:
1.6
作者:
L. McNamara
通讯作者:
L. McNamara