ressaca (marítima)
English translation: storm surge/storm tide
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| 22:20 Mar 20, 2011 |
| Portuguese to English translations [PRO] Science (general) | |||||||
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|  Selected response from: Walter Moura Brazil Local time: 05:41 | ||||||
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| 4 +4 | storm surge/storm tide |
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| 3 +4 | rough sea |
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| Discussion entries: 9 | |
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Answers
8 mins confidence: 
peer agreement (net): +4
peer agreement (net): +4storm surge/storm tide Explanation: http://en.wikipedia.org/wiki/Storm_surge A storm surge is an offshore rise of water associated with a low pressure weather system, typically tropical cyclones and strong extratropical cyclones. Storm surges are caused primarily by high winds pushing on the ocean's surface. The wind causes the water to pile up higher than the ordinary sea level. Low pressure at the center of a weather system also has a small secondary effect, as can the bathymetry of the body of water. It is this combined effect of low pressure and persistent wind over a shallow water body which is the most common cause of storm surge flooding problems. The term "storm surge" in casual (non-scientific) use is storm tide; that is, it refers to the rise of water associated with the storm, plus tide, wave run-up, and freshwater flooding. When referencing storm surge height, it is important to clarify the usage, as well as the reference point. National Hurricane Center tropical cyclone reports reference storm surge as water height above predicted astronomical tide level, and storm tide as water height above NGVD-29. Most casualties during a tropical cyclone occur during the storm surge. |
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