Numerical Modeling of Impacts into Shallow Sea

  • Valery V. Shuvalov
Part of the Impact Studies book series (IMPACTSTUD)

Abstract

The SOVA multi-material hydrocode is used to model impacts of 200–300-m-diameter cosmic bodies (both asteroids and comets) into an ocean with depths ranging from 100 to 500 m. The size of the transient cavity (in the crystalline basement, sediment layer, and water), as well as the propagation of tsunami-like waves and the resurge flow, are calculated. The maximum ratio of diameters of the transient cavity in water to that of the central depression in the basement is found to be approximately 2. It is also shown that 200–300 m impactors can be disrupted, deformed and even decelerated during the flight through the Earth’s atmosphere. These effects and their influence upon cratering are also investigated.

Keywords

Quartz Depression Drilling Subduction Lithology 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Valery V. Shuvalov
    • 1
  1. 1.Institute for Dynamics of GeospheresMoscowRussia

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