%0 Dataset
%T Observational data of gravity Earth tide during the 7th Antarctic expedition in China from 1990 to 1991
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/75c69890-a98d-40ff-a624-a90500cc6613
%W NCDC
%R 10.12072/ncdc.azs.db3027.2023
%A Hu hongqiao
%K Polar;gravity earth tide;gravimeter
%X Zhongshan Station (=76 22 E,=69 22 S) is located in the Larsemann Hills, East Antarctica. From March 1991 to January 2001, continuous observation of gravity Earth tide was carried out using the Lacoste ET gravimeter. This dataset consists of observational data from 1990 to 1991. Earth tide refers to the phenomenon of periodic deformation of Solid earth under the action of daily and monthly tide generating forces. When the earth is regarded as a spherical rigid body, the vertical component of the tidal force vector makes the gravity value of this point change, which is called the gravity Earth tide of the earth. It is a function of the position and time of the point on Earth