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
A. the rotation of the Earth B. the revolution of the Earth C. the gravitational pull of the Moon and the Sun D. the movement of clouds 相关知识点: 试题来源: 解析 C。本题考查海洋潮汐的成因。选项 A 地球自转不是潮汐的主要成因;选项 B 地球公转与潮汐无关;选项 C 月球和太阳的引力是导...
The cause ___ the ocean tides rise and fall is the gravitational pull of the moon. A. why B. which C. that D. when 相关知识点: 试题来源: 解析 A。先行词是“cause”,在定语从句中作原因状语,所以用关系副词“why”。反馈 收藏
There are many factors involved inpredicting the tides. In addition to the motion of the Moon and Sun described above, timing of the tides are also affected by the Moon's declination (angular height above the equator), local geography of the coastline, topography of the ocean floor, and dep...
The ocean is always moving:waves break on the surface, 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...
ocean currents. Surface currents control the motion of the top 10 percent of the ocean’s water, while deep-ocean currents mobilize the other 90 percent. Though they have different causes, surface and deep ocean currents influence each other in an intricate dance that keeps the entire ocean ...
根据上文“The sun and moon pull on the ocean, making the water level rise and fall.(太阳和月亮拉着海洋,使海平面上升和下降)”和下文“Ocean tides usually rise and fall twice a day.(海洋潮汐通常一天涨落两次)”可知,这里为承上启下句,引出本文介绍的对象潮汐。E选项“The water’s rising and ...
On the long timescale, the tide is less than 1 metre at present but it was 5 metres in the past and will reach 8 metres in the future because of resonances of tidal wave and Earth's rotation. We conclude that the Earth鈥揗oon orbital separation and the slowdown of Earth's rotation ...
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Twenty months of ERS 1 35-day repeat altimeter data containing 18 repeat cycles have been used to estimate the major diurnal and semidiurnal ocean tide signals in the northern parts of the North Atlantic and adjacent seas. ERS 1 provides valuable information when investigating ocean tides, owing ...