摘要
电离层测高仪是地面探测电离层的主要常规手段.2010年8月中国气象局在新疆的克孜勒苏柯尔克孜自治州(简称克州)(北纬39.72°,东经76.18°)完成了中国最西端电离层垂直探测站的建设.本文介绍了克州电离层测高仪的主要性能参数、一种新的CADI测高仪天线方案设计及天线系统测试结果;初步比较了克州电离层测高仪站和同样安装了CADI测高仪的加拿大Baker站(北纬52.16°,西经106.53°)2010年10月1日的电离图,这两个站的电离图质量基本一致;2011年2月24日发生了一次太阳耀斑事件,克州电离层测高仪记录了这次耀斑期间电离层的变化和响应,证明了测高仪监测对于短波通信有重要应用价值;比较了2010年8月至10月克州电离层测高仪观测月中值、Rome电离层测高仪(北纬41.9°,东经12.5°)观测月中值和IRI2007的模式值并发现:1)2010年8~10月,克州foF2观测月中值和同纬度Rome的foF2观测月中值在分布形态上比较一致;2)克州foF2观测月中值和模式月中值在8月比较吻合,在10月存在一定差异;9月10:00~13:00、10月4:00~14:00IRI2007模式月中值高于观测月中值,且偏离较大(大于8%);3)克州foF2观测月中值在8月、9月的分布中存在Biteout现象.
he ionosonde is one of main ionosphere facilities based ground.In August 2010,CMA has finished the constructing of a ionosonde station in Kezhou(39.72°N,76.18°E),where is the westernmost of China.In this paper,the main characteristic parameters of CADI ionosonde in Kezhou,a new antenna design for CADI ionosonde and its test result are shown.And the comparison between the Kezhou ionosonde station ionograms and Baker(Canada) ionosonde station(52.16°N,106.53°W)ionograms in October 1,2010 shows that the qualities of their ionograms is basically consistent.Kezhou ionosonde observed the ionospheric varies during the solar flare on February 2,2011 and it proves that ionosonde observation has important application value to HF communication.Finally,the analysis result of the Kezhou,Rome ionosonde(41.9°N,12.5°E)data and IRI2007 from August to October 2011 is fowling: 1) there is basically a agreement between Kezhou median foF2 trend and Rome's;2) the Kezhou median foF2 is agree with IRI2007 in August,there is some difference in October,however,IRI mode value is higher than Kezhou median foF2(more than 8%) in 10:00~13:00,September and 4:00~14:00,October;3)there is obviously biteout in Kezhou median foF2 data in October and September.
出处
《地球物理学进展》
CSCD
北大核心
2012年第6期2316-2321,共6页
Progress in Geophysics