Research on the Influence of Atmospheric Vertical Refraction on Trigonometric Leveling Survey in Qinling Mountains

Autor:	Shidong Han, Wei Han
Rok vydání:	2021
Předmět:	Refraction (sound) Trigonometry Geodesy Geology
Zdroj:	IOP Conference Series: Earth and Environmental Science. 826:012039
ISSN:	1755-1315 1755-1307
DOI:	10.1088/1755-1315/826/1/012039
Popis:	Atmospheric refraction error is one of the main factors affecting the accuracy of precision trigonometric levelling. The influence of it on height difference rises sharply with the increase of horizontal distance. In this paper, the elevation control survey data of Qinling mountains is used to calculate the atmospheric refraction coefficients among the areas in winter and summer, using the method of geometric levelling inverse calculation. Through the analysis of the change law of atmospheric refractive coefficient, the influence of atmospheric vertical refractive coefficient on trigonometric levelling in the Qinling Mountains is summarized, which provides a reference for trigonometric levelling in similar environments.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c15c2c6c8bacec056f1c30d10bd6c67f https://doi.org/10.1088/1755-1315/826/1/012039 Zobrazit plný text záznamu