1 edition of Changes in urban occupance of flood plains in the United States found in the catalog.
Changes in urban occupance of flood plains in the United States
|Series||Research paper - University of Chicago, Dept. of Geography, no. 57, Research paper (University of Chicago. Dept. of Geography) -- no. 57|
|Contributions||White, Gilbert Fowler, 1911-|
|LC Classifications||TC423 C44 1958A|
|The Physical Object|
|Number of Pages||235|
Life was also disrupted in Rumford from this flood. Over the next 15 years the changes will be less profound, but the problems may be no less important. Coincidence Extreme flood events often result from coincidence such as unusually intense, warm rainfall melting heavy snow pack, producing channel obstructions from floating ice, and releasing small impoundments like beaver dams. National Research Council.
Google Scholar White, G. The magnitude of floods can be altered if changes are made in a drainage basin. Flood waters typically inundate farm land, making the land unworkable and preventing crops from being planted or harvested, which can lead to shortages of food both for humans and farm animals. As a small example of possible beneficial use, the opportunities to use unprotected floodplains for the cultivation of switchgrass leading to the manufacture of ethanol and generation of electric power with a minimum of air pollution have been ignored, and research on improvement of agricultural and refinery practices contributing to that end has been neglected Dissertation Abstracts International,38, A.
In contrast to the virtues of the de minimis approach that proposes to ignore very low levels of hazard, our society seems to have adopted a de ignoramus approach that avoids knowing about many hazards. A recent and relevant example of the impacts of undue confidence in structural works can be seen in Hurricane Katrina 's impact on New Orleansduring the summer of Our study group calculated that in the social cost of coping with hazards associated with technology in the United States was equivalent to between 7 and 12 percent of GNP, with about half devoted to hazard management and the remainder incurred as damages to people, material, and the environment Tuller, in press. But it will also place extraordinary strains on national and municipal authorities struggling to provide the poor inhabitants of these chaotic agglomerations with basic security, sustainable livelihoods, and modern infrastructure.
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Risk, science, and democracy. Google Scholar Gruntfest, E. Frequency of a precipitation threshold of interest may be determined from the number of measurements exceeding that threshold value within the total time period for which observations are available.
The Grand River went above bankfull on the night of March 24, rising slowly for the next four days. Lowell, Massachusetts[ edit ] In Lowell, Massachusettsduring the spring floods, the Merrimack River exceeded its banks, causing havoc in most of the city's northern banks.
Specialists and air pollution occupations and preoccupations. The actual control point for any given reach of the drainage may change with changing water elevation, so a closer point may control for lower water levels until a more distant point controls at higher water levels. Google Scholar 5 W.
Public Health Service and State agencies of water quality standards to apply to the provision of healthy drinking water. At the most basic level, the best defense against floods is to seek higher ground for high-value uses while balancing the foreseeable risks with the benefits of occupying flood hazard zones.
Insurance premiums continue to rise; some malpractice insurance costs are prohibitive; and corporate failures, including those of major liability insurance companies, are likely.
As in the past, these will replace technological hazards on center stage, but the work in the wings will continue. Areal flooding begins in flat areas like floodplains and in local depressions not connected to a stream channel, because the velocity of overland flow depends on the surface slope.
Indeed, we have found that a corporate health and safety regulatory system exists that matches that of the public sector. Several studies have looked into the flow patterns and redistribution in streets during storm events and the implication on flood modelling.
The new International Commission of Large Dams will be evaluating the full effects of large storage projects. These problems in approaches to supply, disposal, and water treatment call for revised definitions of domestic water use aims, altered criteria of the value of water, and a more comprehensive approach to both planning and execution of watershed projects.
I did not encounter him personally until when I served on the staff of the Water Committee of the National Resources Board which he chaired for the next six years. For the last two years, I have been part of a modest research effort seeking to learn more about how corporations manage hazards.
But there are also genuine scientific surprises. The cause may be localized convective precipitation intense thunderstorms or sudden release from an upstream impoundment created behind a damlandslide, or glacier.
Frontal storms form at the front of large, moist air masses moving across the country and can cause floods in the northern and eastern parts of the United States during the winter and spring. Cambridge University Press.
Google Scholar Leopold, L. An example of departure from that policy is a recent project in reuse of urban waste water in the Shenandoah Valley enables two communities to process their waste so that the effluent meets public standards for human consumption and serves the natural biota admirably It now does this through support of activities in sample, 'Impact' communities, but no mention is made of accounting for possible beneficial uses of floodplains.Changes in Urban Occupance of Flood Plains in the United States.
Chicago: University of Chicago, Department of Geography Research Paper No. Chicago: University of Chicago, Department of Geography Research Paper No.
In this study, the application of the resilience concept of the flood event depending on progress of the time is analyzed as the hazard occurrence, the disaster risk, the damage risk, and the evolution of the damages. Flood disaster is defined as the occurrence of an inundation in an exposed area.
The human exposure (loss of life, injury, ), structural (buildings, roads, ) and functional Cited by: 2. Oct 17, · 'Geography of Risk' Calculates Who Pays When A Storm Comes To Shore Journalist Gilbert Gaul says federal subsidies encourage developers to keep building on the coasts — despite accelerating and.
changes in its gradient or cross-sectional shape - which therefore changes its dynamic equilibrium what happens when a new dam is created? 1. upstream - as the stream enters the resevoir, the water will slow down, deposit sediment and form a delta.
flood plains. The n value is determined from the values of the factors that affect the roughness of channels and flood plains. In densely vegetated flood plains, the major roughness is caused by trees, vines, and brush.
The n value for this type of flood plain can be determined by measuring the vegetation density of the flood plain. benefits to flood control are less than 3% of the total of the activity; LEOPOL & MADDOCK 8. WHITE, CHANGES IN URBAN OCCUPANCE OF FLOOD PLAINS im THE UNITED STATES 9 (University of Chicago Dep't of Geography Research Paper No.
57, ) (hereinafter cited as WHITE, URBAN OCCUPANCE). See HoYT & LANGBEIN 7.