To discriminate the gravity anomaly by the subtle gravity observation of the total solar eclipse in 2009

doi:10.6038/cjg20130306

	To discriminate the gravity anomaly by the subtle gravity observation of the total solar eclipse in 2009
	Wen Wu 1,4; Tang Ke-Yun 1,2; Wang Qian-Shen 1; Gao Yu-Wen 1; Hua Chang-Cai 3
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2013-03-01
卷号	56 期号:3 页码:770-782
关键词	LaCoste-Romberg SG-053 Superconducting gravimeter Total solar eclipse Gravity anomaly Polynomial fitting Earthtide
ISSN号	0001-5733
DOI	10.6038/cjg20130306
文献子类	Article
英文摘要	It is a vital problem about the nature of gravity and also a realistic scientific issue whether a gravity anomaly exists during the total solar eclipse. For a century, predecessors did a lot of observations and experiments to research gravity anomalies during the solar eclipses. Nonetheless, a clear result has not been found due to the limitation of the condition and the instruments. On the basis of previous work, this paper studies the gravity data of seven LaCoste-Romberg gravimeters and one SG-053 superconducting gravimeter during the total solar eclipse on July 22, 2009. The study utilized the perfect environment and the delicate instrument. It could to be the best research activity both in the experiment scale and in the observation quality in the past century. Based on the research in this paper, we hold the opinion that the supposed gravity anomaly during the total solar eclipse cannot be detected at present with actual observation conditions and instrument performance. And the previous anomaly was very likely created by the drastic changes in the weather. Moreover, the least square cubic-polynomial fitting method which is used to remove the theoretical earthtide from the observed gravity data makes a more simple calculation and a more reliable conclusion.
WOS关键词	SUPERCONDUCTING GRAVIMETER ; MODELS ; TIDE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000317169200006
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/87162]
专题	中国科学院地质与地球物理研究所
通讯作者	Wen Wu
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wen Wu,Tang Ke-Yun,Wang Qian-Shen,et al. To discriminate the gravity anomaly by the subtle gravity observation of the total solar eclipse in 2009[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2013,56(3):770-782.
APA	Wen Wu,Tang Ke-Yun,Wang Qian-Shen,Gao Yu-Wen,&Hua Chang-Cai.(2013).To discriminate the gravity anomaly by the subtle gravity observation of the total solar eclipse in 2009.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,56(3),770-782.
MLA	Wen Wu,et al."To discriminate the gravity anomaly by the subtle gravity observation of the total solar eclipse in 2009".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 56.3(2013):770-782.