极地研究2016，Vol.28Issue(1)：19-24,6.DOI:10.13679/j.jdyj.2016.1.019
基于 South Pole 站和 McMurdo 站的极区电离层闪烁统计特性
STATISTICAL PROPERTIES OF POLAR IONOSPHERIC SCINTILLATIONS AT THE SOUTH POLE AND MCMURDO STATIONS, ANTARCTICA
摘要
Abstract
Based on scintillation receiver observations from December 2013 to November 2014 at the South Pole and Mc-Murdo stations , a statistical analysis was performed on the diurnal and seasonal variations of the phase scintillation occurrence at the two stations .The statistical results indicated that the phase scintillation occurrence in spring and autumn is significantly greater than in summer and winter , and that there is a twin-peak structure to the diurnal var-iation .Phase scintillation occurrence is enhanced at magnetic noon and magnetic post-midnight .Ionospheric irregu-larities produced by soft electron precipitation and ionospheric convection on the polar cusp could lead to scintilla -tion near magnetic noon .The enhanced occurrence of scintillation at magnetic post-midnight could be induced by a strong density gradient caused by the plasma cloud across the polar cap region .The phase scintillation occurrence at McMurdo Station is greater than at the South Pole Station , which might be due to the difference in their magnetic latitudes .关键词
South Pole站/McMurdo站/极区电离层/相位/闪烁发生率Key words
South Pole Station/McMurdo Station/polar ionosphere/phase scintillations/occurrence引用本文复制引用
李鹏辉,胡红桥,方涵先,刘瑞源,杨升高..基于 South Pole 站和 McMurdo 站的极区电离层闪烁统计特性[J].极地研究,2016,28(1):19-24,6.基金项目
上海市浦东新区科技发展基金创新资金(PKC2013-207),国家海洋局“南北极环境综合考察与评估”专项(CHINARE 2015-02-03)和国家自然科学基金(41431072)资助 （PKC2013-207）
