Detection of Possible Impact Structures at the Bottom of the Ocean by Gravimetric and Magnetometric Data Processing

An. G. Marchuk, K. V. Simonov, S. A. Peretokin

Protecting the Earth against Collisions with Asteroids and Comet Nuclei, In: A. M. Finkelstein, W. F. Huebner, V. A. Shor (Eds) Proceedings of the International Conference “Asteroid-Comet Hazard-2009”, StP: Nauka, 206–210 (2010)

Keywords: Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), impact structures at the bottom of the ocean, craters on the Earth surface, gravimetric and magnetometric data processing, two-dimensional wavelet transformation of the gridded gravimetric data

Abstract

A new attempt to detect hidden impact craters on the Earth surface and on ocean bottoms was made using high-tech computational methods. For detection and allocation of such structures, a fast two-dimensional wavelet transformation of the gridded gravimetric data was used. The method was tested on reliably known impact structures. The results obtained are promising. Known hidden circle structures are effectively detected and clearly distinguished in the selected areas