Abstract:

Using a Lacoste ET gravimeter(No.20) we observed the gravity tide from March 1991 to Feb. 1993 at Zhongshan Station which is located at Larsemann Hills (λ=76°22′E,φ=69°22′S) in Antarctica and obtained effective data of more than 600 days.After correction for ocean effects and rheological model of gravimeter we get:δ O 1 =1.2253±0.0031;φ O 1 =0.73°±0.14°;δ M 2 =1.0785±0.0045;φ M 2 =-3.55°±0.29° According to the precision of analysis of the data the observation results are good. However the final precision of results will be affected by the poorer precision of ocean tide correction because of the lack of ocean tides data nearly area.