Наукові статті

Use of Different Geodesic Methods for Determining Heights

Нестеренко, С.В.

The issue of the effectiveness of using various geodetic methods for determining vertical displacements of the earth's surface, including the use of satellite technologies, is considered. The vertical displacements of the benchmarks located on the geodetic polygon of the Poltava Gravimetric Observatory were determined for a period corresponding to 0.5 calendar year. It has been analyzed the advantages and disadvantages of using network RTK in GNSS technologies. Measurements were made at the geodetic polygon with a GNSS receiver. The accuracy of determining normal heights in RTK mode is calculated. It was found that only 30% of measurements have high geodetic accuracy, but such errors are acceptable for topographic surveying. To compare the results, a remote satellite radar method was developed for the same period. A map of relief deformations on the geodetic polygon was obtained, which confirms the results obtained by the traditional ground method of geometric leveling. The satellite radar is effective over large areas, when a general trend of displacement can be observed. Further, having identified dangerous areas, having in the arsenal the most available technologies and means for determining deformations of the earth's surface, it is possible to obtain fairly accurate geodetic results for individual points.

English

2023-03-09

GNSS-receiver

Springer, Cam

Use of Different Geodesic Methods for Determining Heights / S. Nesterenko, R. Mishchenko, G. Shariy, V. Shchepak // Lecture Notes in Civil Engineering. – 2023. – Vol. 299 : Proceedings of the 4th International Conference on Building Innovations (ICBI 2022). – P. 473-487. – https://doi.org/10.1007/978-3-031-17385-1\_38