semidiurnal tide

简明释义

半日潮

英英释义

例句

1.Sailing boats must be aware of the semidiurnal tide schedule to avoid grounding at low water.

帆船必须了解半日潮的时间表，以避免在低水位时搁浅。

2.Understanding the semidiurnal tide patterns is crucial for coastal erosion studies.

理解半日潮模式对海岸侵蚀研究至关重要。

3.The semidiurnal tide can significantly impact the navigation of large vessels in the harbor.

在港口，半日潮会显著影响大型船只的航行。

4.The coastal fishermen rely on the timing of the semidiurnal tide to plan their trips, as it affects fish behavior.

沿海渔民依赖半日潮的时机来计划他们的出海，因为它影响鱼类的行为。

5.During a semidiurnal tide, there are typically two high tides and two low tides each day.

在半日潮期间，每天通常会有两个高潮和两个低潮。

作文

The phenomenon of tides has fascinated humanity for centuries. Among the various types of tides, the semidiurnal tide (半日潮) is particularly interesting due to its predictable nature and significant impact on coastal environments. A semidiurnal tide occurs when there are two high tides and two low tides within a single lunar day, which lasts approximately 24 hours and 50 minutes. This means that the water level rises and falls twice each day, creating a rhythmic pattern that can be observed along coastlines worldwide.Understanding the mechanics behind semidiurnal tides requires some knowledge of gravitational forces. The primary force driving tides is the gravitational pull of the moon and the sun on the Earth's waters. When the moon is directly overhead or on the opposite side of the Earth, the water is pulled towards it, resulting in a high tide. Conversely, when the moon is at a right angle to a given location on Earth, the gravitational pull is weaker, leading to low tides.In many regions, particularly those near the equator, semidiurnal tides dominate. For instance, places like the east coast of the United States and parts of Europe experience this type of tidal pattern. The regularity of semidiurnal tides makes them easier to predict compared to other types of tides, such as mixed or diurnal tides, where the number of high and low tides can vary.The implications of semidiurnal tides are vast. They play a crucial role in shaping coastal ecosystems, influencing the behavior of marine life, and affecting human activities such as fishing, shipping, and recreation. Marine organisms have adapted to these tidal rhythms, with many species timing their reproductive cycles and feeding habits according to the ebb and flow of the tides. For example, certain fish may spawn during high tides when the waters are deeper, while others might feed during low tides when prey is more accessible.Moreover, the energy generated by semidiurnal tides presents opportunities for renewable energy sources. Tidal power harnesses the kinetic energy produced by moving water, and areas with strong tidal currents can be ideal for generating electricity. This sustainable energy source could help reduce reliance on fossil fuels and combat climate change.However, the impact of semidiurnal tides is not solely beneficial. Coastal communities must also contend with the challenges posed by rising sea levels and increased storm surges, which can exacerbate flooding during high tides. Understanding the patterns and behaviors of semidiurnal tides is essential for effective coastal management and disaster preparedness.In conclusion, the study of semidiurnal tides reveals much about the intricate relationship between the Earth, moon, and sun. Their predictable nature allows for a deeper understanding of coastal ecosystems and offers potential for sustainable energy solutions. As we continue to explore the effects of climate change on our oceans, the significance of semidiurnal tides will undoubtedly remain a critical area of research and consideration for scientists, policymakers, and coastal communities alike.

潮汐现象几个世纪以来一直吸引着人类的注意。在各种潮汐类型中，半日潮（semidiurnal tide）因其可预测性和对沿海环境的显著影响而特别有趣。半日潮是指在一个月球日内，即大约24小时50分钟，发生两次高潮和两次低潮。这意味着水位每天会上下波动两次，形成一种可以在全球沿海观察到的节奏模式。理解半日潮的机制需要了解一些重力作用的知识。潮汐的主要驱动力是月球和太阳对地球水体的引力。当月球正好位于某一地点的正上方或地球的另一侧时，水被向月球拉动，导致高潮。相反，当月球与地球上的某个位置成直角时，引力较弱，导致低潮。在许多地区，尤其是靠近赤道的地方，半日潮占主导地位。例如，美国东海岸和欧洲部分地区经历这种潮汐模式。半日潮的规律性使得它们比其他类型的潮汐（如混合潮或单潮）更容易预测，因为后者的高潮和低潮数量可能会有所不同。半日潮的影响广泛。它们在塑造沿海生态系统、影响海洋生物行为以及影响人类活动（如捕鱼、航运和休闲）方面发挥着至关重要的作用。海洋生物已经适应了这些潮汐节奏，许多物种根据潮汐的涨落来调整繁殖周期和觅食习惯。例如，某些鱼类可能在高潮时产卵，因为此时水位较深，而其他鱼类则可能在低潮时觅食，因为此时猎物更易获取。此外，半日潮产生的能量为可再生能源提供了机会。潮汐能利用流动水产生的动能，而强潮流区域非常适合发电。这种可持续能源来源可以帮助减少对化石燃料的依赖，并应对气候变化。然而，半日潮的影响并非全是积极的。沿海社区还必须应对海平面上升和风暴潮加剧带来的挑战，这可能在高潮期间加剧洪水。理解半日潮的模式和行为对于有效的沿海管理和灾害准备至关重要。总之，对半日潮的研究揭示了地球、月球和太阳之间复杂关系的许多方面。它们的可预测性使我们能够更深入地了解沿海生态系统，并为可持续能源解决方案提供了潜力。随着我们继续探索气候变化对海洋的影响，半日潮的重要性无疑将继续成为科学家、政策制定者和沿海社区关注的关键研究领域。