Comet and Asteroid Impact Hazards on a Populated Earth: Computer Modeling
Comet and Asteroid Impact Hazards explores the anticipated consequences of comet and asteroid impact. It presents the first computer simulations of the hazards of comet and asteroid bombardment of a populated Earth. Previous estimates of fatality and damage rates on the 100 to 10,000 year time scale are shown to be too low because they neglect rare, highly lethal outriders of the populations of bombarding objects, those with exceptional strength, unusually low entry velocity, and near-horizontal entry angles. This is the first realistic assessment of both the mean casualty rate and the expected statistical fluctuations in that rate. A breakdown of fatality and damage rates by impactor energy and compositional class suggests lessons for both asteroid search strategies and interdiction techniques.
This book is written so that anyone with college level experience in the physical sciences can understand it. It includes a disk that allows the reader to simulate impact catastrophes. It serves as a useful resource in various physical sciences courses such as astronomy, planetary science, and environmental science.
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1-Year Runs ablation airbursts altitude Appendix ast/och atmosphere average blast Building hit Building Struck calculations carbonaceous chondrite cometary crater crushing strength death deceleration diameter distribution Earth Earth-crossing earthquake effects entering body entry angles entry velocity explosive yield fatal events fatality rate fire fireball firestorms fragments gigaton GOSUB GOTO impact events impact flux impact hazard Impact Process impactor iridium irons killed kinetic energy largest lethal events long-period comets luminous efficiencies M-type M-type carbonaceous chondrite mass megatons mesosiderite meteor meteorite fall moment magnitude near-Earth asteroid NEAs NEOs number of fatalities observed ocean impacts oo'o šoošo šoošo šooošošošo šooššoošo orbit ordinary chondrite ordinary H oxides pallasite planet population density PRINT*2,USING range reported Results Runs with Population short-period comet simulation skipout Spacewatch statistics stony-irons subroutine sulfur surface impacts TABLE target threat tion tsunami tsunami waves Tunguska Type of impactor