Today, the Antarctic continent is almost completely covered by powerful ice systems, which contain 90% of the world's ice reserves and 70% of the world's freshwater reserves. Any changes in the ice sheet in Antarctica will have global consequences and require careful monitoring. The GNSS method is an invaluable tool for such research. With the help of GNSS stations located in Antarctica, it is possible to conduct seismic monitoring, determine the amount of ice melting, calculate the amount of water vapour in the atmosphere, and measure ionospheric activity. The main goal of this study is to calculate the zenith tropospheric delays (ZTD) of GNSS stations in Antarctica. The tropospheric delay values were determined based on the data analysis in the double difference (DD) network solution mode and compared with the ZTD data from the PPP precise point positioning method. Calculated tropospheric delays can be used to estimate water vapor content in the Antarctic troposphere, to correct altimetric products for the influence of the moist component of the troposphere, and for remote sensing of the atmosphere.
Bevis M.; Businger, S.; Herring T.A.; Rocken, C.; Anthes, R.A.; Ware, R.H. [1992] GPS meteorology: Remote sensing of atmospheric water vapor using the global positioning system. J. Geophys. Res. Atmos. 1992, 97, 15787–15801.
Leandro R. F., Santos, M. C., & Langley, R. B. [2011]. Analyzing GNSS data in precise point positioning software. GPS solutions, 15 (1), 1 - 13.
Nevada Geodetic Laboratory. http://geodesy.unr.edu/
Rohm W.; Yuan, Y.; Biadeglgne B.; Zhang K.; Le Marshall J. [2014] Ground-based GNSS ZTD/IWV estimation system for numerical weather prediction in challenging weather conditions. Atmos. Res. 2014, 138, 414–426.
Saastamoinen J.H. [1972] Atmospheric Correction for the Troposphere and the Stratosphere in Radio Ranging Satellites. Use Artif. Satell. Geod. 1972, 15, 247–251.
Savchyn I., Tretyak K, Marusazh K., Korliatovych T. [2021] Processing and analysis of measurement results of the Ukrainian GNSS station ASAV (Argentina Islands, West Antarctica). Conference Proceedings, International Conference of Young Professionals «GeoTerrace-2021», Oct 2021, Volume 2021, p.1 – 5 DOI: https://doi.org/10.3997/2214-4609.20215K3032
Savchuk S., Kablak N., Khoptar A. [2018] Сomparison of approaches to zenith tropospheric delay determination based on data of atmosphere radio sounding and GNSS observation. Interdepartmental scientific and technical collection «Geodesy, Cartography and Aerial Phоotography», Volume 88, pp. 24-32. DOI:10.23939/istcgcap2018.02.024.
Vaquero-Martínez, J.; Antón, M. [2021] Review on the Role of GNSS Meteorology in Monitoring Water Vapor for Atmospheric Physics. Remote Sens. 2021, 13, 2287. https://doi.org/10.3390/rs13122287