%0 Journal Article
%T Wenchuan earthquake ionosphere TEC anomaly detected by GPS<br>基于GPS探测汶川地震电离层TEC的异常
%A LIN Jian
%A WU Yun
%A ZHU Fu-Ying
%A QIAO Xue-Jun
%A ZHOU Yi-Yan
%A <br>林剑
%J 地球物理学报
%D 2009
%I 
%X Utilizing spherical harmonic model, the GPS observational data of fiducial station in the crustal movement observation network of China and IGS fiducial station, calculating the total electron content of Chinese and global region respectively, and adopting different statistical analysis method, we examined the TEC on Wenchuan epicenter and around the region. As a result, we found that the anomalous VTEC disturbances over seismic preparation zone continuously took place in a week before and after the earthquake, whose form had conjugate structure and shifted to magnetic equatora.
%K GPS<br>电子总含量(TEC)
%K 球谐模型
%K 电离层
%K 地震
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=C223B0EC5BE51282C4E0510476ADB8A5&yid=DE12191FBD62783C&vid=286FB2D22CF8D013&iid=CA4FD0336C81A37A&sid=E42CAFB11D4BE21A&eid=B1E36BF7B9783A85&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=10&reference_num=12