Propagation of surface electromagnetic waves over the 'ice-sea' structure

Autor:	I. B. Naguslaeva, D. G. Buyanova, Yuri Bashkuev, Valeri B. Khaptanov, Ludmila Kh. Angarkhaeva, Mikhail Dembelov, Viktor P. Melchinov
Rok vydání:	2019
Předmět:	Electromagnetic field geography geography.geographical_feature_category Geophysics Electromagnetic radiation Physics::Geophysics Radio propagation Surface wave Sea ice Spatial dependence Electrical impedance Physics::Atmospheric and Oceanic Physics Geology Radio wave
Zdroj:	25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics.
DOI:	10.1117/12.2540578
Popis:	Propagation conditions of radio waves over the “ice-sea” structure with a highly inductive impedance are often more favorable than over a clear sea due to the appearance of a surface electromagnetic wave. Numerical calculation algorithms for various radio wave propagation path models have been developed. The method of making prognostic maps of the surface impedance of the “ice-sea” structure according to the ice situation maps for the Arctic Ocean (AO) in different seasons of the year is considered. A formula is proposed for converting the spatial dependence of the ice thickness into the spatial dependence of the surface impedance at a fixed frequency in VLF-LF-MF ranges. Calculations of surface impedance for various types of sea ice are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5857677a3b239ac098df94366a75667 https://doi.org/10.1117/12.2540578 Zobrazit plný text záznamu