сотрудник
Институт земного магнетизма, ионосферы и распространения радиоволн им. Н.В. Пушкова РАН (ИЗМИРАН)
МГУ им М.Ю. Ломоносова (Физический факультет)
студент с 01.01.1989 по 01.01.1995
Москва, г. Москва и Московская область, Россия
сотрудник с 01.01.2007 по 01.01.2023
Москва, г. Москва и Московская область, Россия
Мурманский арктический государственный университет
Апатиты, Россия
Москва, г. Москва и Московская область, Россия
Апатиты, Россия
Апатиты, Россия
Мурманский арктический государственный университет
Апатиты, Россия
докторант
Москва, г. Москва и Московская область, Россия
УДК 537.87 Распространение и излучение электромагнитных волн
УДК 517.9 Дифференциальные, интегральные и другие функциональные уравнения. Конечные разности. Вариационное исчисление.
ГРНТИ 37.01 Общие вопросы геофизики
ГРНТИ 37.15 Геомагнетизм и высокие слои атмосферы
ГРНТИ 37.25 Океанология
ГРНТИ 37.31 Физика Земли
ГРНТИ 38.01 Общие вопросы геологии
Ground-penetrating radar profiling on the surface of water bodies is applied in various geological and engineering studies. Here, we present the results of numerical simulation of the propagation of a video pulse electromagnetic signal in a freshwater body with gradients of the permittivity and electrical conductivity in the near-bottom layer. The method of numerical solutions of Maxwell's equations in the time domain is applied, in the general setting for rapidly changing processes, without restrictions on the magnitude of the change in the parameters of the medium. The results make it possible to explain the apparent decrease in water depth according to GPR data in comparison with the true depth and the appearance of additional reflecting boundaries on radargrams in the bottom layer.
GPR, numerical modelling, video pulse, water depth
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