%0 Journal Article
%T A comparison and analysis of the S4 index,C/N and ROTI over Sanya<br>海南三亚地区S4指数与C/N、ROTI的比较分析
%A XIONG Bo
%A WAN Wei-Xing
%A NING Bai-Qi
%A YUAN Hong
%A LI Guo-Zhu
%A <br>熊波
%A 万卫星
%A 宁百齐
%A 袁洪
%A 李国主
%J 地球物理学报
%D 2007
%I 
%X Using the data received by GPS scintillation/TEC receiver at Sanya station in Ha inan province during August, 2004-July, 2005, we made some comparison and analyses of the S4 (the amplitude scintillation index), C/N (Carrier to Noise) a nd ROTI (the standard deviation of the change rate of TEC). We also analyzed the scintillation on 7 November 2004 in detail. From the comparison and analysis, we concluded as follows: (1) the scintillation strength of one year has a semiyearly periods, the maximum scintillation strength of one year appears in spring and autumn; (2) the S4 and C/N have a good negative correlation; (3) ROTI can be regarded as an indicator of the present of scintillation causing small-scale ionospheric irregularities.
%K GPS
%K Scintillation
%K TEC
%K C/N
%K S4<br>GPS
%K 闪烁
%K 电子浓度总含量
%K 载噪比
%K S4
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=317ADE517B324E084C0F50656A2E4191&yid=A732AF04DDA03BB3&vid=771152D1ADC1C0EB&iid=B31275AF3241DB2D&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=0&reference_num=0