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Longshore drift plays a large role in the evolution of a shoreline, as if there is a slight change of sediment supply, wind direction, or any other coastal influence longshore drift can change dramatically, affecting the formation and evolution of a beach system or profile. These changes do not occur due to one factor within the coastal system ...
The "no-stop limit", or "no-decompression limit" (NDL), is the time interval that a diver may theoretically spend at a given depth without having to perform any decompression stops while surfacing. The NDL helps divers plan dives so that they can stay at a given depth for a limited time and then ascend without stopping while still avoiding an ...
The Box Moor Trust; Formation: 1594: Legal status: Trust: Purpose: The sustainable management of agricultural and amenity land extending to 487 acres of moors, commons, woodland and grassland and provision of environmental education facilities for the use and enjoyment of the residents and youth of the area of benefit of Hemel Hempstead and Bovingdon.
It reduces erosion on the other, i.e. downdrift, side by reducing the speed and power of the waves striking the shore. It is a physical barrier to stop sediment transport in the direction of longshore drift (also called longshore transport). If a groyne is correctly designed, then the amount of material it can hold will be limited, and excess ...
The Stokes drift is the difference in end positions, after a predefined amount of time (usually one wave period), as derived from a description in the Lagrangian and Eulerian coordinates. The end position in the Lagrangian description is obtained by following a specific fluid parcel during the time interval.
Water surface searches are procedures carried out on or over the surface of a body of water with the purpose of finding lost vessels, persons, or floating objects, which may use one or more of a variety of search patterns depending on the target of the search, as the direction and rate of drift vary depending on the characteristics of the target and the water and weather conditions at the time.
Drift is often subdivided into unstratified (unsorted) drift (glacial till) that forms moraines and stratified drift (glaciolacustrine and fluvioglacial sediments) that accumulates as stratified and sorted sediments in the form of outwash plains, eskers, kames, varves, and so forth. The term drift clay is a synonym for boulder clay. Both are ...
A marine biologist, previously employed by Dexter, urges them to turn the creature loose. Reluctantly, they comply, watching as it joins the others. Dexter, shooting at the creatures in an effort to stop them, is abruptly halted by a piercing, ultrasonic pulse. The creatures crawl back into the lake and disappear under the water.