dew point

简明释义

露点

英英释义

例句

1.The weather forecast indicates that the dew point (露点) will be high this weekend, making it feel more humid.

天气预报显示，周末的dew point (露点) 将会很高，这会让人感觉更潮湿。

2.Understanding the dew point (露点) helps meteorologists predict fog formation.

理解dew point (露点) 有助于气象学家预测雾的形成。

3.A high dew point (露点) can lead to discomfort during outdoor activities.

高dew point (露点) 会在户外活动中导致不适。

4.Farmers often monitor the dew point (露点) to determine the best time for irrigation.

农民们经常监测dew point (露点) 来确定最佳灌溉时间。

5.When the dew point (露点) drops below freezing, we can expect frost on the grass in the morning.

当dew point (露点) 降到冰点以下时，我们可以期待早晨草地上会有霜。

作文

Understanding the concept of the dew point is essential for anyone interested in meteorology, climate science, or even just everyday weather. The dew point is defined as the temperature at which air becomes saturated with moisture, leading to the formation of dew. This phenomenon occurs when the air temperature drops to a certain level and can hold no more water vapor, causing condensation to take place. In simpler terms, it is the point at which the air can no longer retain its moisture, resulting in the presence of liquid water on surfaces such as grass, leaves, and car windows.The significance of the dew point cannot be overstated. It serves as a critical indicator of humidity levels in the atmosphere. When the dew point is high, it indicates that the air is humid, making it feel warmer than it actually is. Conversely, a low dew point suggests drier air, which can lead to a cooler sensation. For instance, on a summer day, if the temperature is 90°F but the dew point is also 70°F, the air will feel oppressively hot and sticky. On the other hand, if the temperature is 90°F with a dew point of 50°F, it will feel much more comfortable.Meteorologists often use the dew point to predict weather conditions. By monitoring changes in the dew point, they can forecast the likelihood of precipitation, fog, or frost. For example, when the dew point rises significantly overnight, it may indicate that rain is on the way, as the air is becoming increasingly saturated. Similarly, if the dew point drops sharply, it could signal clear skies and cooler temperatures.Moreover, the dew point has practical implications beyond just weather forecasting. It plays a crucial role in various industries, including agriculture, construction, and HVAC (heating, ventilation, and air conditioning). Farmers need to understand the dew point to protect their crops from frost damage. If the dew point is expected to drop below freezing, they may need to take precautions to safeguard their plants. In construction, knowing the dew point helps builders determine the appropriate time to paint or apply sealants, as high humidity can affect the drying process.In conclusion, the dew point is a vital measurement that provides insights into humidity and moisture levels in the atmosphere. Its understanding is crucial not only for weather forecasting but also for various practical applications in different fields. By grasping the concept of the dew point, individuals can better appreciate the complexities of weather patterns and make informed decisions based on atmospheric conditions. Whether you are planning a picnic, managing a farm, or simply interested in the science of weather, knowing about the dew point can enhance your understanding of the environment around you.

理解露点的概念对于任何对气象学、气候科学或日常天气感兴趣的人来说都是至关重要的。露点被定义为空气饱和水分的温度，导致露水的形成。当空气温度降到某个水平并且无法再容纳更多水蒸气时，就会发生这种现象，导致凝结的发生。简单来说，露点是空气无法再保留水分的点，这会导致草地、树叶和汽车窗户等表面出现液态水。露点的重要性不容小觑。它作为大气中湿度水平的关键指标。当露点高时，表示空气潮湿，使人感觉比实际温度更热。相反，低露点则表示空气干燥，这可能导致更凉爽的感觉。例如，在一个夏天的日子里，如果气温是90华氏度，但露点也是70华氏度，那么空气会感觉非常炎热和潮湿。另一方面，如果气温是90华氏度，而露点为50华氏度，感觉就会舒适得多。气象学家经常使用露点来预测天气条件。通过监测露点的变化，他们可以预测降水、雾霭或霜冻的可能性。例如，当露点在夜间显著上升时，可能表明雨水即将来临，因为空气变得越来越饱和。类似地，如果露点急剧下降，可能预示着晴朗的天空和较低的温度。此外，露点在农业、建筑和暖通空调（HVAC）等各个行业中也具有实际意义。农民需要了解露点以保护他们的作物免受霜冻损害。如果露点预计会降到冰点以下，他们可能需要采取预防措施来保护植物。在建筑方面，了解露点有助于建筑商确定合适的涂漆或涂抹密封剂的时间，因为高湿度会影响干燥过程。总之，露点是一个重要的测量指标，它提供了对大气中湿度和水分水平的洞察。理解露点不仅对天气预测至关重要，而且对各个领域的各种实际应用也很重要。通过掌握露点的概念，个人可以更好地理解天气模式的复杂性，并根据大气条件做出明智的决策。无论您是在计划野餐、管理农场，还是对天气科学感兴趣，了解露点都能增强您对周围环境的理解。