By Keith Smith, Roy Ward
This e-book is worried with the explanations and results of river and coastal floods and the ways that humans can reply to the flood possibility. person chapters handle matters similar to floods as ordinary dangers; affects and interpretations of flood possibility; motives, spatial features and type of river floods and coastal floods; flood estimation; flood defence; flood forecasting and caution; different responses together with land use making plans and coverage; and a concluding dialogue of difficulties, rules and customers. Floods has been written by means of skilled and profitable authors whose complementary abilities are mixed to offer a wide, entire and up to date remedy of the topic which might be used not just as a textual content e-book or studying guide but in addition as an authoritative reference resource. This has been accomplished through establishing and structuring the cloth to illustrate the continuity and linkages among the motives and affects of flooding and the numerous attainable responses to the flood chance. even as the ebook guarantees that dialogue of every of the most subject matters and themes is, so far as is attainable, self-contained. The e-book is well timed in different facets. It addresses the topicality and universality of floods that are an expanding danger at a time of worldwide environmental switch (climate, land use, inhabitants distribution etc.). It additionally bargains the layman and practitioner alike a synthesis and rationalization of many person examine efforts close to the shut of the foreign Decade for average catastrophe aid.
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Additional resources for Floods: Physical Processes and Human Impacts, 1st Edition
In China, where millions live at risk of flooding, records go back in some districts for some 2200 years and reveal more than 1000 occurrences of severe flooding (Yang, 1989). Chinese history is full of tales of the struggles against the notorious Huang Ho, often called 'China's Sorrow', which not only floods frequently but also tends to change its course, bringing unexpected disaster to new areas. 5 × 106 km2. e. discharge per unit area) generally decreases with basin size. Accordingly, neither is necessarily a satisfactory index of whether one flood is larger than another.
However, it also depends on other factors, such as seasonality and frequency, the type of flooding and the shape of the flood hydrograph. Apart from the geomorphological role of floods, for a treatment of which the reader is referred to specialist texts such as Baker et al. (1988) and Beven and Carling (1989), these and related issues will form recurrent themes throughout this book. They are introduced briefly, in this discussion of floods as physical features, under the headings of the flood process, the river flood hydrograph, and the dimensions of flooding.
3 Flood-Intensifying Factors. 2 shows, floods may be intensified by a number of factors. g. the Bay of Bengal and the southern part of the North Sea, which causes an overall increase in sea level as water is driven into the narrower section. For the same reason the overflow of sea defences is less common than overtopping on the open coast but is an important aspect of flooding in estuarine areas. e. upon the rate of shallowing of water depth encountered as the tsunami moves towards the shore. River floods may be intensified by factors associated either with the catchment itself or with the drainage network and stream channels.