I: Climatic and Atmospheric Hazards.- Evaluation of Climatic Change through Harmonic Analysis.- Some Characteristics of Typhoons as Revealed by the Recent SSM/I Microwave Radiometry.- Structure of a Prefrontal Convective Rainband in Northern Taiwan Determined from Dual-Doppler Data.- II: Hydrological Hazards.- Recent Floods in Bangladesh: Possible Causes and Solutions.- Meteorological Factors Associated with Floods in the North-Eastern Part of the Iberian Peninsula.- Hydrological Response to Radar Rainfall Maps through a Distributed Model.- Simulation and Modeling of Rainfall Radar Measurements for Hydrological Applications.- III: Storm Surges.- Storm Waves in the Canadian Atlantic: A Numerical Simulation.- Storm Surge Mitigation through Vegetation Canopies.- Numerical Simulation and Prediction of Storm Surges and Water Levels in Shanghai Harbour and Its Vicinity.- IV: Geological Hazards.- Mass Movements in Hilly Areas (with Examples from Nigeria).- Characteristics and Mitigation of the Snow Avalanche Hazard in Kaghan Valley, Pakistan Himalaya.- Seismic Hazard Analysis with Randomly Located Sources.- Regional Fracture Analysis South Latitude 29° N of Egypt and Their Influence on Earthquakes.- Seismic Hazard of Bulgaria.- Some Aspects of Seismic Hazard Assessment when Comparing Different Approaches (abstract).- V: Report and Recommendations.- Meeting Report: International Decade for the Natural Disaster Reduction Panel, 6 August 1991, Perugia, Italy.- Recommendations for Future Work.

Over the past 20 years the costs of natural disasters have escalated significantly. The lives of over 800 million people have been disrupted and the number of catastrophes has nearly quadrupled. At present, the increasing global threat of natural disasters, in spite of our increased knowledge, is ominous. With the growth in world population, the increasing of resources in newly developing areas, and the increasing cost and sophistication of engineering structures and technical installations, there is an urgent need to seek to understand the potential threats posed by natural hazards and to ascertain the best ways of mitigating their damaging effects.
To meet this urgent threat, the United Nations (UN) General Assembly in December 22, 1989 passed a Resolution which declared the 1990s to be the International Decade for Natural Disaster Reduction (IDNDR). As a contribution to the decade, the International Symposium Hazards--91 was held in Perugia, Italy, during 4--9 August 1991. The conference was attended by specialists from 34 countries, and a total of 110 papers were presented at 20 sessions, covering a very broad range of topics which proved to be of significant value for future research. The sixteen articles included in this book provide a unique overview of the state-of-the-science in geophysical hazards including climatic, atmospheric, hydrological and geological hazards. Furthermore, the results of a panel on the IDNDR and the recommendations adopted during the meeting are presented at the end of this volume. Recent Studies in Geophysical Hazards is thus an excellent reference source for scientists, engineers, and policy makers.