Parameters of Wave Processes from GNSS Data

Mesoscale spatiotemporal variations with periods of 3-60 days are studied based on the remote sensing data from the GLONASS GPS receiver network in 2012-2015. The main modes of mesoscale variations are found; empirical distributions of their amplitudes, phase velocities, and spatial scales are constructed. The seasonal dependences of these parameters are found. Using independent data from meteorological stations and ERA5 reanalysis, it is shown that variations in the zenith tropospheric delay of radio waves, integral moisture content of the atmosphere, surface refractive index, and wind speed in the troposphere are determined by the same mesoscale atmospheric processes, with the most probable wavelengths of no more than 8000 km.