jet stream

简明释义

急流射流

英英释义

例句

1.Pilots often plan their routes based on the location of the jet stream (喷流).

飞行员通常根据喷流的位置来规划航线。

2.A shift in the jet stream (喷流) can lead to sudden changes in temperature.

喷流的变化可能导致温度的突然变化。

3.During winter, the jet stream (喷流) often dips south, bringing colder air.

冬季时，喷流往往向南下沉，带来寒冷的空气。

4.Meteorologists track the jet stream (喷流) to predict weather patterns more accurately.

气象学家跟踪喷流以更准确地预测天气模式。

5.The airplane flew smoothly thanks to the strong jet stream (喷流) that pushed it along.

由于强劲的喷流，飞机飞行得非常平稳。

作文

The concept of the jet stream is crucial for understanding weather patterns and climate dynamics. A jet stream refers to fast-moving air currents located in the upper levels of the atmosphere, typically at altitudes of about 6 to 12 kilometers. These streams can reach speeds of up to 300 kilometers per hour and play a significant role in influencing weather systems around the globe. The existence of jet streams is primarily due to the uneven heating of the Earth's surface by the sun, which creates temperature gradients that drive these powerful winds. In the Northern Hemisphere, there are generally two main jet streams: the polar jet stream and the subtropical jet stream. The polar jet stream is found at higher latitudes and is associated with cold Arctic air masses, while the subtropical jet stream is located at lower latitudes and is connected to warmer air from the tropics. The position and strength of these jet streams can shift seasonally and are influenced by various atmospheric phenomena, such as the El Niño Southern Oscillation (ENSO). Meteorologists closely monitor jet streams because they have a profound impact on weather forecasting. For instance, when a jet stream dips southward, it can lead to colder temperatures and increased precipitation in certain regions. Conversely, when it shifts northward, warmer and drier conditions may prevail. This variability can result in significant weather events, including storms, droughts, and heatwaves. Understanding the behavior of jet streams allows meteorologists to make more accurate predictions about upcoming weather conditions.Moreover, jet streams also affect aviation. Airlines often plan flight routes based on the location and speed of jet streams. By flying with a jet stream, planes can save fuel and reduce travel time. However, flying against a jet stream can lead to longer flights and increased fuel consumption. Thus, the dynamics of jet streams are not only vital for meteorology but also for the aviation industry.In conclusion, the jet stream is an essential component of our atmosphere that influences weather patterns, climate, and even air travel. By studying jet streams, scientists can gain insights into the complex interactions within the Earth's climate system. As climate change continues to alter weather patterns globally, understanding jet streams will become increasingly important for predicting future weather events and their potential impacts on society. Therefore, the study of jet streams is not just a matter of academic interest; it has real-world implications for agriculture, disaster preparedness, and overall human safety.

“喷流”这一概念对于理解天气模式和气候动态至关重要。喷流是指位于大气上层的快速移动空气流，通常位于约6到12公里的高度。这些气流的速度可以达到每小时300公里，并在全球范围内影响天气系统。喷流的存在主要是由于太阳对地球表面的不均匀加热，这造成了推动这些强风的温度梯度。在北半球，通常有两个主要的喷流：极地喷流和亚热带喷流。极地喷流位于较高纬度，与寒冷的北极空气团相关，而亚热带喷流则位于较低纬度，连接着来自热带的暖空气。这些喷流的位置和强度可以随季节变化，并受多种大气现象的影响，例如厄尔尼诺南方涛动（ENSO）。气象学家密切监测喷流，因为它们对天气预报有深远的影响。例如，当喷流向南下沉时，某些地区可能会出现较冷的温度和降水增加。相反，当它向北移动时，可能会出现更温暖和干燥的条件。这种变化可能导致重大天气事件，包括暴风雨、干旱和热浪。理解喷流的行为使气象学家能够更准确地预测即将到来的天气条件。此外，喷流还影响航空业。航空公司通常根据喷流的位置和速度规划航班路线。通过顺风飞行，飞机可以节省燃料并缩短旅行时间。然而，逆风飞行可能导致航程延长和燃料消耗增加。因此，喷流的动态不仅对气象学至关重要，还对航空行业具有重要意义。总之，喷流是我们大气的重要组成部分，影响天气模式、气候甚至航空旅行。通过研究喷流，科学家可以深入了解地球气候系统内复杂的相互作用。随着气候变化继续改变全球天气模式，理解喷流将变得越来越重要，以预测未来天气事件及其对社会的潜在影响。因此，喷流的研究不仅仅是学术兴趣的问题；它对农业、灾害准备和整体人类安全具有实际意义。