Details Title: Ch. 10 Description: environmental geology Total Flash Cards: 13 Created: 12/02/2008 14:38:24		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Geology Flashcards
Cards in this set: Term Beach Definition Accumulation of whatever loose material (commonly sand,gravel, or bits of shell and so forth) that accumulate on a shoreline as the result of wave action. Term Beach-Budget Definition Inventory of sources and losses of sediment to a particular stretch of coastline Term Beach Nourishment Definition Artificial process of adding sediment(sand) to a beach for recreational and aesthetic purposes as well as to provide a buffer to coastal erosion. Term Breakwater Definition A structure(as a wall) which may be attached to a beach or located offshore, designed to protect a beach or harbor from the force of the waves. Term Groins Definition A structure designed to protect shorelines and trap sediment in the zone of littoral drift, generally constructed perpendicular to the shoreline. Term Hurricane Definition Typical cyclone characterized by circulating winds of 100km/hr or greater generated over an area of about 160km in diameter; known as typhoons in the Pacific Ocean. Term Jetties Definition Often constructed in pairs at the mouth of a river or inlet to a lagoon, estuary, or bay, designed to stabilize a channel, control deposition of sediment, and deflect large waves. Term Longshore Sediment Transport Definition With respect to coastal processes, refers to the transport of sediment in the nearshore environment by wave activity Term Rip Current Definition A seaward flow of water in a confined narrow zone from a beach to beyond the breaker zone. Term Seacliff Definition Steep(commonly near-vertical) bluff adjacent to and adjoining a beach or coastal environment; produced by a combination of erosional processes including wave activity and subaerial processes such as weathering, landsliding, and runoff or surface water from the land. Term Seawall Definition Engineering structure constructed at the water's edge to minimize coastal erosion by wave activity Term Storm Surge Definition Wind-driven oceanic waves, usually accompanying a hurricane Term Tropical Cyclone (typhoon) Definition Severe storm generated from a tropical disturbance called typhoons in most of the Pacific Ocean and hurricanes in the Western Hemisphere.