above mean sea level

简明释义

平均海面之上

英英释义

例句

1.The geological survey indicated that the valley is 1,500 feet above mean sea level.

地质调查显示，该山谷海拔1,500英尺高于平均海平面。

2.Mount Everest is the highest mountain in the world, standing at 29,032 feet above mean sea level.

珠穆朗玛峰是世界上最高的山，海拔29,032英尺高于平均海平面。

3.The flight altitude was maintained at 30,000 feet above mean sea level for most of the journey.

在大部分旅程中，飞行高度保持在30,000英尺高于平均海平面。

4.The city of Denver is located at an elevation of 5,280 feet above mean sea level.

丹佛市位于海拔5,280英尺高于平均海平面。

5.The research station is situated at an altitude of 2,300 meters above mean sea level.

研究站位于海拔2,300米高于平均海平面。

作文

Understanding the concept of elevation is crucial in various fields, including geography, meteorology, and aviation. One important term that frequently arises in these contexts is 'above mean sea level.' This phrase refers to the height of a location relative to the average level of the ocean's surface, which is considered to be zero elevation. When we say a mountain peak is 2,000 meters above mean sea level, we are indicating that its summit is 2,000 meters higher than this average ocean level. In geography, knowing the elevation of a place can significantly impact the climate, vegetation, and wildlife found there. For instance, areas that are higher above mean sea level tend to be cooler and may have different ecosystems compared to low-lying regions. This is because temperature generally decreases with altitude. As a result, mountainous regions often host unique flora and fauna adapted to these cooler temperatures. In addition to ecological implications, elevation also plays a critical role in human activities such as agriculture and urban planning. Farmers must consider the altitude when selecting crops, as certain plants thrive better at specific elevations. Similarly, cities located at higher altitudes may face challenges related to transportation and infrastructure due to the steep terrain and varying weather conditions. Meteorologists also pay close attention to elevation when forecasting weather. Atmospheric pressure decreases with altitude, which can affect weather patterns. For example, a weather station located 1,500 meters above mean sea level will report different temperatures and precipitation levels compared to one at sea level. Understanding these differences helps meteorologists provide more accurate forecasts. In aviation, pilots must be aware of their altitude in relation to mean sea level to ensure safe flight operations. Air traffic control uses this reference point to manage aircraft altitudes during takeoff, landing, and cruising. For instance, an airplane flying at 10,000 feet above mean sea level is maintaining a specific altitude that allows it to navigate safely above terrain and other obstacles. Moreover, the concept of 'above mean sea level' is not just limited to physical geography; it also has implications for environmental science. Rising sea levels due to climate change pose significant risks to coastal areas that are only slightly above mean sea level. These regions could face increased flooding and erosion, threatening both human settlements and natural habitats. Thus, understanding the relationship between elevation and sea level is essential for addressing these environmental challenges. In conclusion, the phrase above mean sea level serves as a fundamental reference point across various disciplines. Whether we are discussing the unique ecosystems found in high-altitude regions, the challenges faced by farmers and city planners, or the technicalities of aviation and weather forecasting, this term underscores the importance of elevation in our world. By comprehensively understanding what it means to be above mean sea level, we can better appreciate the complexities of our environment and make informed decisions about how we interact with it.

理解海拔的概念在地理、气象和航空等多个领域至关重要。一个经常出现的重要术语是“高于平均海平面”。这个短语指的是一个地点相对于海洋表面的平均水平的高度，海洋表面的平均水平被视为零海拔。当我们说一座山峰的高度为2000米高于平均海平面时，我们指的是它的顶峰比这个平均海洋水平高出2000米。在地理学中，了解一个地方的海拔对气候、植被和野生动物有重要影响。例如，高于平均海平面的地区通常气温较低，可能拥有与低洼地区不同的生态系统。这是因为温度通常随着海拔的增加而降低。因此，山区往往拥有适应这些较凉爽温度的独特植物和动物。除了生态影响，海拔在农业和城市规划等人类活动中也起着关键作用。农民在选择作物时必须考虑海拔，因为某些植物在特定海拔下更容易生长。同样，位于高海拔地区的城市可能会面临因陡峭地形和变化天气条件而带来的交通和基础设施挑战。气象学家在天气预报中也非常关注海拔。随着海拔升高，大气压力降低，这会影响天气模式。例如，位于1500米高于平均海平面的气象站报告的温度和降水量与位于海平面上的气象站有所不同。理解这些差异有助于气象学家提供更准确的天气预报。在航空领域，飞行员必须了解他们的海拔与平均海平面的关系，以确保安全飞行操作。空中交通管制利用这一参考点来管理飞机在起飞、着陆和巡航时的高度。例如，一架飞行在高于平均海平面的10,000英尺的飞机保持着一个特定的高度，使其能够安全地在地形和其他障碍物上方飞行。此外，“高于平均海平面”的概念不仅限于物理地理，它在环境科学中也具有重要意义。由于气候变化导致海平面上升，只有稍微高于平均海平面的沿海地区面临着显著的洪水和侵蚀风险，这威胁到人类居住区和自然栖息地。因此，了解海拔与海平面之间的关系对于应对这些环境挑战至关重要。总之，短语高于平均海平面作为一个基本的参考点，在各种学科中发挥着重要作用。无论我们讨论的是高海拔地区独特的生态系统、农民和城市规划者面临的挑战，还是航空和天气预报的技术细节，这个术语都强调了海拔在我们世界中的重要性。通过全面理解高于平均海平面的含义，我们可以更好地欣赏我们环境的复杂性，并做出明智的决策来与之互动。