mean sea level

简明释义

平均海面

英英释义

例句

1.Tides can vary significantly from mean sea level depending on the lunar cycle.

潮汐会因月相周期而与平均海平面有显著差异。

2.The surveyor marked the land boundaries in relation to mean sea level.

测量员根据平均海平面标记了土地边界。

3.The elevation of the mountain is measured at 2,000 meters above mean sea level.

这座山的海拔高度为2000米，以上是相对于平均海平面的测量。

4.The climate report indicates that global temperatures are affecting mean sea level rise.

气候报告指出，全球气温正在影响平均海平面的上升。

5.Many coastal cities are at risk of flooding due to rising mean sea level.

由于平均海平面上升，许多沿海城市面临洪水风险。

作文

Understanding the concept of mean sea level is essential for various fields, including geography, meteorology, and oceanography. The term mean sea level refers to the average height of the ocean's surface, measured over a long period, typically 19 years. This average is crucial because it serves as a baseline from which elevations and depths are measured. For instance, when we say that a mountain is 1,000 meters high, we are referring to its height above the mean sea level. The calculation of mean sea level involves taking into account the variations in sea level caused by tides, atmospheric pressure, and other factors. These fluctuations can be significant; hence, scientists use tidal gauges and satellite measurements to provide accurate readings of mean sea level. Understanding these measurements helps in predicting climate change impacts, such as rising sea levels, which can lead to coastal erosion and flooding.In addition to its scientific importance, mean sea level also plays a critical role in navigation and maritime activities. Ships and vessels rely on accurate mean sea level data to ensure safe passage through waterways. Without this information, there would be a higher risk of grounding or collisions, especially in shallow areas where the depth is close to the mean sea level.Moreover, the significance of mean sea level extends to urban planning and development. Coastal cities must consider mean sea level when constructing buildings, roads, and other infrastructure. As global temperatures rise and polar ice melts, the mean sea level is expected to increase, posing a threat to low-lying areas. Planners and engineers must incorporate this data into their designs to mitigate potential flooding risks and protect communities.The implications of changes in mean sea level are profound. As scientists continue to monitor and analyze sea level trends, they can provide valuable insights into the effects of climate change. For example, regions that experience a significant rise in mean sea level may need to implement adaptive measures, such as building seawalls or restoring wetlands, to safeguard against the encroaching waters.In conclusion, the understanding of mean sea level is vital for numerous aspects of our lives, from environmental science to urban development. It serves as a fundamental reference point that influences how we measure elevation, navigate our oceans, and prepare for the future impacts of climate change. As we continue to face environmental challenges, the importance of accurately monitoring and understanding mean sea level will only grow, highlighting the need for ongoing research and data collection in this area.

理解平均海平面的概念对地理、气象和海洋学等多个领域至关重要。术语平均海平面是指在较长时间内（通常为19年）测量的海洋表面的平均高度。这个平均值非常重要，因为它作为测量高程和深度的基准。例如，当我们说一座山高1000米时，我们指的是它相对于平均海平面的高度。计算平均海平面涉及考虑潮汐、大气压力和其他因素造成的海平面变化。这些波动可能是显著的，因此科学家们使用潮汐计和卫星测量来提供准确的平均海平面读数。理解这些测量有助于预测气候变化的影响，例如海平面上升，这可能导致沿海侵蚀和洪水。除了科学重要性外，平均海平面在航海和海事活动中也发挥着关键作用。船只和舰艇依赖准确的平均海平面数据来确保安全通过水道。如果没有这些信息，尤其是在水深接近平均海平面的浅水区， grounding或碰撞的风险将会增加。此外，平均海平面的重要性还扩展到城市规划和发展。沿海城市在建设建筑、道路和其他基础设施时必须考虑平均海平面。随着全球温度上升和极地冰川融化，平均海平面预计将上升，对低洼地区构成威胁。规划者和工程师必须将这些数据纳入设计中，以减轻潜在的洪水风险并保护社区。平均海平面变化的影响是深远的。随着科学家们继续监测和分析海平面趋势，他们可以提供关于气候变化影响的宝贵见解。例如，经历显著平均海平面上升的地区可能需要实施适应性措施，如修建海堤或恢复湿地，以防止水域侵袭。总之，理解平均海平面对我们生活的多个方面至关重要，从环境科学到城市发展。它作为一个基本的参考点，影响着我们如何测量高程、航行我们的海洋以及为气候变化的未来影响做好准备。随着我们继续面临环境挑战，准确监测和理解平均海平面的重要性只会增加，突显出在这一领域持续研究和数据收集的必要性。