A。解析:如果在海里游泳,应该注意潮汐和水流(tides and currents),这是海洋游泳的重要安全注意事项。选项B“number of fish”鱼的数量与游泳安全关系不大。选项C“color of the water”水的颜色也不是游泳安全需要关注的重点。选项D“people on the beach”沙滩上的人对海里游泳安全没有直接影响。反馈...
OceanWaves,Currents,andTides Mr.Woodham6thGradeEarthScienceMarshallMiddleSchool Waves Thefourpartsofawave:WavelengthTroughWaveHeightCrest WavesCheckWhatYouTHINKYouKnow wavelength,waveheight,trough,crest 1 ___2___3 4 CheckWhatYouTHINKYouKnow wavelength,waveheight,trough,crest Whatisthehorizontaldistance...
which is the tides and currents office at NOAA. And I'm a physical oceanographer, so I study the motion of the ocean, how the ocean moves from things like waves, and tides, and
Pacific Ocean - Tides, Currents, Waves: In contrast to the tides of the Atlantic—which are almost always semidiurnal (twice-daily) occurrences—those of the Pacific include many instances of diurnal (daily) and mixed tides. In the diurnal type of tidal
A. M. Gorlov, "Harnessing power from ocean currents and tides," Sea Technology, vol. 45, no. 7, pp. 40-43, 2004.Gorlov AM.Harnessing power from ocean currents and tide.Sea Technology. 2004A.M. Go...
An overview is presented on the mechanical forms of ocean energy; i.e., waves, currents, and tides. Following an introductory section on wave mechanics, each of the three forms of ocean energy is considered under the headings of the resource, device types for energy extraction, and prognosis...
sea levels rise and fall with the tides,and currents flow below the surface.Although it looks as if the water in a wave is moving across the surface of the ocean,it is not.The water is actually moving up and down.This is why an object on top of a wave will bob up and down,but ...
(waves, currents, and tides), and the interactions between theoceanwaters and theatmosphere.Chemical oceanography has to do with thecompositionof seawater and the biogeochemical cycles that affect it. Marinegeologyfocuses on the structure, features, and evolution of the ocean basins. Marine ecology,...
Ocean currents are caused by wind, differences in water densities due to temperature and varying salinities, and by tides, all contributing to the movement of water from one location to another. Tides create currents strongest near the shorelines. Wind-driven currents near the coasts cause coasta...
Oceanic tides lead to some of the largest currents of the world ocean and have important implications for oceanic circulation. In the last decade, the feedback effect of surface currents on the overlying winds has been shown to strongly regulate the ocean circulation. Here we present evidence, ...