%0 Journal Article
%T STUDY ON GAUSSIAN SMOOTHING OF GRACE TEMPORAL GRAVITY VARIATION<br>GRACE时变重力场的高斯平滑研究
%A Zhou Xin
%A Xing Lelin
%A Zou Zhengbo
%A Li Hui
%A <br>周新
%A 邢乐林
%A 邹正波
%A 李辉
%J 大地测量与地球动力学
%D 2008
%I 
%X Two methods isotropic Gaussian filter and non-isotropic Gaussian filter of GRACE temporal gravity variation smoothing,and their properties are studied.With these methods,the global geoid change between January and February 2006 was computed.The results show that non-isotropic Gaussian filter's spectrum depends not only on degree but also on order;the non-isotropic smoother yields enhanced GRACE signals with significantly higher spatial resolution in latitude and the same resolution in longitude without reducing the accuracy as compared to isotropic Gaussian filter.
%K GRACE temporal gravity
%K Gaussian smoothing
%K non-isotropic
%K spectrum
%K geoid<br>GRACE时变重力场
%K 高斯平滑
%K 非各向同性
%K 频谱
%K 大地水准面
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=8D6602BF1902DEBBAA66FF1BA0502246&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=38B194292C032A66&sid=2001E0D53B7B80EC&eid=94E7F66E6C42FA23&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=0&reference_num=10