jet stream

简明释义

急流;射流

英英释义

例句

1.Pilots often check the position of the jet stream before takeoff.

飞行员在起飞前通常会检查喷流的位置。

2.Meteorologists use jet streams to predict weather patterns.

气象学家利用喷流来预测天气模式。

3.The jet stream can affect flight times significantly.

这条喷流会显著影响飞行时间。

4.The airplane was able to save fuel by flying with the jet stream.

这架飞机通过顺着喷流飞行节省了燃料。

5.Changes in the jet stream can lead to extreme weather conditions.

喷流的变化可能导致极端天气条件。

作文

The concept of the jet stream is an essential part of meteorology that plays a crucial role in shaping our weather patterns. A jet stream refers to fast-flowing air currents found in the atmosphere, typically occurring at altitudes of about 10 kilometers (6 miles) above sea level. These narrow bands of strong winds can reach speeds of over 200 miles per hour and are primarily driven by the temperature differences between the equator and the poles.Understanding the dynamics of jet streams is vital for predicting weather changes. For instance, when a jet stream shifts its position, it can lead to significant alterations in weather patterns across various regions. In winter, the polar jet stream often dips southward, allowing cold Arctic air to move into lower latitudes, which can result in severe winter storms in places that typically enjoy milder climates.Conversely, during the summer months, the jet stream tends to be more stable and positioned further north, leading to warmer temperatures in many areas. This seasonal variation is crucial for agriculture, as farmers rely on predictable weather patterns for planting and harvesting crops.Another interesting aspect of jet streams is their influence on aviation. Pilots often take advantage of these high-altitude winds to save fuel and time on long-haul flights. By flying within or just below a jet stream, aircraft can benefit from the tailwinds that propel them forward, significantly reducing travel time and fuel consumption. However, turbulence can also occur when planes encounter the edges of a jet stream, making it essential for pilots to monitor these air currents closely.In recent years, climate change has raised concerns about the stability and behavior of jet streams. As the planet warms, the temperature gradient between the poles and the equator may diminish, potentially leading to weaker and more erratic jet streams. This could result in prolonged weather patterns, such as extended heatwaves or prolonged cold spells, which could have serious implications for ecosystems and human activities.In conclusion, the jet stream is a fascinating and complex phenomenon that significantly impacts our weather, aviation, and even agriculture. Understanding its behavior and variations can help us better prepare for the changing climate and its effects on our daily lives. As we continue to study the intricacies of the jet stream, we gain valuable insights into not only meteorology but also the broader implications of climate change on our planet. The jet stream serves as a reminder of the interconnectedness of our atmosphere and the importance of monitoring and understanding these natural systems for future generations.

‘喷流’的概念是气象学中的一个重要部分，在塑造我们的天气模式方面发挥着至关重要的作用。‘喷流’指的是大气中快速流动的空气流，通常发生在海平面以上约10公里（6英里）的高度。这些强风的狭窄带可以达到每小时超过200英里的速度，主要由赤道和极地之间的温度差异驱动。理解‘喷流’的动态对于预测天气变化至关重要。例如，当‘喷流’改变其位置时，可能会导致各个地区天气模式的显著变化。在冬季，极地‘喷流’往往向南倾斜，使寒冷的北极空气移动到较低的纬度，这可能导致通常享有温和气候的地方发生严重的冬季风暴。相反，在夏季，‘喷流’往往更加稳定，位置也更靠北，这导致许多地区的气温升高。这种季节性变化对农业至关重要，因为农民依赖可预测的天气模式来种植和收获作物。‘喷流’的另一个有趣方面是它对航空的影响。飞行员经常利用这些高空风来节省燃料和时间。在长途航班中，通过在‘喷流’内或稍低于‘喷流’的高度飞行，飞机可以受益于推动它们前进的顺风，从而显著减少旅行时间和燃料消耗。然而，当飞机遇到‘喷流’的边缘时，也可能会出现颠簸，因此飞行员必须密切监测这些气流。近年来，气候变化引发了对‘喷流’的稳定性和行为的担忧。随着地球变暖，极地和赤道之间的温度梯度可能会减小，从而可能导致‘喷流’变得更弱且更不稳定。这可能导致天气模式的延长，例如持续的热浪或持续的寒潮，这可能对生态系统和人类活动产生严重影响。总之，‘喷流’是一个迷人而复杂的现象，对我们的天气、航空甚至农业产生了重大影响。理解其行为和变化可以帮助我们更好地为气候变化及其对我们日常生活的影响做好准备。随着我们继续研究‘喷流’的复杂性，我们获得了关于气象学以及气候变化对我们星球的更广泛影响的宝贵见解。‘喷流’提醒我们大气系统的相互联系，以及监测和理解这些自然系统对未来几代人的重要性。