- Отрасли: Government
- Number of terms: 5261
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The United States Army Corps of Engineers is a federal agency with a mission to provide vital public engineering services in peace and war to strengthen the nation's security, energize the economy, and reduce risks from disasters. It is also a major U.S. Army organization employing some 38,000 ...
Detrital material which is transported by a river and deposited – usually temporarily – at points along the flood plain of a river. Commonly composed of sands and gravels.
Industry:Engineering
A gravity outlet fitted with vertically-hinged doors, opening if the inner water level is higher than the outer water level, so that drainage takes place during low water.
Industry:Engineering
The return of part of the energy of seismic waves to the earth’s surface after the waves bounce off an acoustic boundary (typically rock or material of different density).
Industry:Engineering
The ratio of the weight of unit volume of any material to the weight of unit volume of water at 4 deg C, Gs = γs/γw. Typical values of Gs for soil solids are 2.65 to 2.72.
Industry:Engineering
A loosely-used synonym of glacial epoch, or time of extensive glacial activity; specifically of the latest period of widespread continental glaciers, the pleistocene Epoch.
Industry:Engineering
(1) For a plunging wave, the point at which the wave curls over and falls. (2) The final breaking point of the waves just before they rush up on the beach.
Industry:Engineering
A narrow sand embankment, created by an excess of deposition at its seaward terminus, with its distal end (the end away from the point of origin) terminating in open water.
Industry:Engineering
A nearly horizontal part of the beach or backshore formed by the deposit of material by wave action. Some beaches have no berms, others have one or several.
Industry:Engineering
The wearing away of land by the action of natural forces. On a beach, the carrying away of beach material by wave action, tidal currents, littoral currents, or by deflation.
Industry:Engineering
In wave forecasting, the continuous area of water surface over which the wind blows in nearly a constant direction. Sometimes used synonymously with fetch length. Also fetch.
Industry:Engineering
