{'fraction_non_alphanumeric': 0.01001669449081803, 'fraction_numerical': 0.01335559265442404, 'mean_word_length': 5.666666666666667, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The lateral wave phenomena of ground penetrating radar survey

The anomalous effects of subsurface electromagnetic wave propagation and scattering that were observed during a practical survey by ground penetrating radar are considered and analyzed. These effects are connected with high-speed and low-attenuation wave propagation and can be considered as a result of lateral electromagnetic waves. Field results of subsurface radar survey on a building foundation and archeological subsurface tunnels in Ukraine during 1997-1998 that demonstrate the lateral wave effects are presented and discussed.