Modelling Atmospheric Properties in Industrial Geodetic Measurements

Abstract

The article considers the questions of studying and modeling atmospheric properties in geodetic measurements on industrial objects near high-temperature aggregates. It is shown that atmospheric properties around such aggregates have significant differences, which influence geodetic measurements. The research was carried out on the basis of an industrial experiment on measuring atmospheric temperature field around a rotation kiln. The mathematical model of the air temperature field in the space around the kiln is divided into two zones: the first one – the space where the total station and sighting marks are positioned; the second one – the space from the shell surface to the distance ≤2.5m. The first zone temperature field is built on measurements made by inhausting thermocouple and interpolation between measurement points by Viner-Kolmogorov filter; the second zone field is built on measurements made on the shell surface by a pyrometer. The research showed that in the direction perpendicular to the aggregate axis the lines of equal temperatures are close to circles. The mathematical model of atmospheric temperatures allows to perform integration of differential equations of the sighting beam between any measurement points, to estimate the values of geodetic refraction, to choose more accurate measurement technology.