TY JOUR TI Results of numerical modelling of the problem of video pulse ground penetrating radar research in freshwater bodies KW GPR KW numerical modelling KW video pulse KW water depth JO Russian Journal of Earth Sciences AU Gulevich, O.A. AU Volkomirskaya, L.B. AU Mingalev, I.V. AU Varenkov, V.V. AU Suvorova, Z.V. AU Akhmetov, O.I. AU Mingalev, O.V. AU Gulevich, O.E. PY 2022 IS 22 PB Geophysical Center of the Russian Academy of Sciences