The Coast: Hazardous Interactions within the Coastal by Timothy M. Kusky

By Timothy M. Kusky

Coastlines supply the superior surroundings and activity parts, but in addition they rank one of the such a lot dangerous components to reside. The world's sea coast extends for roughly 273,000 miles, and approximately half the world's inhabitants lives inside of 60 miles of the coastline. The coastal region is intensely serious for the world's financial system, tradition, and destiny survival, however it is usually essentially the most unsafe environments and the positioning of many of the world's deadliest mess ups. "The Coast" specializes in the attribute landforms and environments present in the coastal region in addition to the strategies that shape those landforms. assurance additionally contains the numerous coastal dangers that threaten our surroundings, together with cliff erosion from wave and typhoon motion, the dangers linked to strong tides, and the implications of long-shore sediment delivery. as well as an exam of a few of the worst coastal mess ups that experience happened from 1900 to 2007 - together with Hurricanes Katrina and Rita, a different bankruptcy is dedicated to town of latest Orleans, together with its geological and ordinary background and why it's so in danger for coastal disasters.
Enhanced with brilliant pictures taken through the writer, this booklet is a needs to for center and highschool scholars with an curiosity during this attention-grabbing subject. Chapters comprise: attribute Landforms and Environments of the Coastal area; starting place of Coastal risks: Coastal tactics; results of emerging Sea degrees and Coastal Subsidence; Examples of Coastal risks and mess ups (1900-2007); and New Orleans: town so much in danger for Coastal catastrophe within the usa.

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Additional resources for The Coast: Hazardous Interactions within the Coastal Environment (The Hazardous Earth)

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Longer the wavelength, the greater the wave height, and the longer the period. It is important to remember that waves are energy in motion, and the water in the waves does not travel along with the waves. The motion of individual water particles as a wave passes form a roughly circular orbit that decreases in radius with depth below the wave. indb 36 6/5/08 11:30:26 AM Origin of Coastal Hazards: Coastal Processes 37 Waves at Mossel Bay, South Africa: View of 12th green with 18th hole and clubhouse of The Caves Course at Pinnacle Point Beach and Golf Resort (Getty Images) bodies move roughly up and down or in a circular path as the waves pass their location.

The morphology of rocky coastlines is mainly determined by the type of rock, its internal structure, tectonic setting, as well as the physical, chemical, and biological processes operating on the coastline. Coastlines with mountains and steep slopes under the sea tend to have large waves, since little of the wave energy is dissipated by shallow water as the waves approach. These large waves erode the coast and also transport any sand that tends to accumulate offshore, so it is rare to find sandy beaches on steep rocky coastlines.

In many cases the erratics are composed of rock types that do not occur in the area they are resting in, but are only found hundreds or even thousands of miles away. Many glacial erratics in the northern part of the United States can be shown to have come from parts of Canada. Sediment deposited by streams washing out of glacial moraines is known as outwash, and is typically deposited by braided streams. Many of these form on broad plains known as outwash plains. When glaciers retreat, the load is diminished, and a series of outwash terraces may form.

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