Determining the height difference between two points using optical clocks, an experiment in Wuhan

Determining the height difference between two points using optical clocks, an experiment in Wuhan

Hoang Anh The^1,*, Dau Khac Tai¹, Shen Wenbin²

¹School of Agriculture and Resources, Vinh University, No 182 Le Duan Road, Vinh City, Viet Nam

²Wuhan University,Luojiashan Road, Wuchang District. Wuhan City, Hubei Province. P. R. China

Corresponding Author Email: anhthe.dhv@gmail.com

Abstract:

The applications of relativistic geodesy are increasingly being studied and exploited by scientists. Many studies on relativistic geodesy have obtained very positive results in measurement fields requiring high accuracy such as satellite geodesy, space geodesy, gravity geodesy, etc. This study presents the results of an experiment on determining the height difference between two points by comparing the frequencies of two optical atomic clocks, in Wuhan, China. The experiment results showed that the difference between the height difference determined by the clock frequency comparison method and the height difference determined by the leveling method was at the centimeter level.

Keywords:relativistic geodesy, orthometric height, optical clock, frequency comparison

PDF file: /datafiles/46325/upload/files/B5_pp31_36.pdf