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Reduction And Predictability Of Natural Disasters (Paperback, New)
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Reduction And Predictability Of Natural Disasters (Paperback, New)
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Within the past five years, the international community has
recognized that it may be possible, through programs of systematic
study, to devise means to reduce and mitigate the occurrence of a
variety of devastating natural hazards. Among these disasters are
earthquakes, volcanic eruptions, floods, and landslides. The
importance of these studies is underscored by the fact that within
fifty years, more than a third of the world's population will live
in seismically and volcanically active zones. The International
Council of Scientific Unions, together with UNESCO and the World
Bank, have therefore endorsed the 1990s as the International Decade
of Natural Disaster Reduction (IDNDR), and are planning a variety
of programs to address problems related to the predictability and
mitigation of these disasters, particularly in third-world
countries. Parallel programs have begun in a number of U.S.
agencies.One of the most promising scientific avenues is to develop
the capability to simulate these physical processes in the
computer, Many of the recent models are nonlinear in significant
ways, for example cellular automata or fractal growth models. They
can thus be analyzed in a framework familiar to workers in complex
system theory. It is often the case that the occurrence frequency
of disaster events generated by the models follow power laws,
perhaps with cutoffs. Thus there is a spectrum of event sizes, from
small to large, that are presumably related by the nonlinear
dynamics of the process. Simulation techniques can be used to study
the fundamental physics of the process. Simulation techniques can
be used to study the fundamental physics of the process, and most
importantly, to develop meansto predict the patterns of occurrence
of large events in the models and to identify precursory phenomena.
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