atmospheric layer

简明释义

大气层

英英释义

例句

1.The ozone layer is a crucial atmospheric layer that protects us from harmful UV radiation.

臭氧层是一个重要的大气层，保护我们免受有害的紫外线辐射。

2.Weather balloons can reach the stratosphere, which is an atmospheric layer above the troposphere.

气象气球可以到达平流层，这是位于对流层上方的一个大气层。

3.Scientists study the atmospheric layer known as the thermosphere to understand its effects on satellite communication.

科学家研究被称为热层的大气层，以了解其对卫星通信的影响。

4.The mesosphere is an atmospheric layer where most meteors burn up upon entering the Earth's atmosphere.

中层大气是一个大气层，大多数流星在进入地球大气层时会燃烧。

5.Airplanes typically fly in the lower part of the atmospheric layer called the troposphere.

飞机通常在称为对流层的大气层的下部飞行。

作文

The Earth is surrounded by a series of protective layers known as the atmosphere. One of the most important components of this system is the atmospheric layer, which plays a critical role in sustaining life on our planet. The atmospheric layer refers to the various layers of gases that envelop the Earth, each with distinct characteristics and functions. Understanding these layers is crucial for comprehending how they impact our daily lives, weather patterns, and even climate change.The atmosphere is typically divided into several key layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The lowest layer, the troposphere, extends from the Earth's surface up to about 8 to 15 kilometers high, depending on the location. This is where all weather phenomena occur, making the atmospheric layer vital for meteorology. It contains the majority of the atmosphere's mass, including water vapor, which is essential for precipitation and cloud formation.Above the troposphere lies the stratosphere, which extends from about 15 kilometers to approximately 50 kilometers above the Earth. This layer is home to the ozone layer, which absorbs and scatters ultraviolet solar radiation. Without this protective atmospheric layer, life on Earth would be exposed to harmful UV rays, leading to increased rates of skin cancer and other health issues. The presence of the ozone layer demonstrates how crucial the atmospheric layer is for protecting living organisms.As we move higher, the mesosphere extends from 50 kilometers to about 85 kilometers. This layer is characterized by decreasing temperatures and is where most meteors burn up upon entering the Earth's atmosphere. The thermosphere, which follows, reaches from 85 kilometers to about 600 kilometers above the Earth. Here, temperatures can soar to thousands of degrees Celsius, but the air is so thin that it would not feel hot to a human. The thermosphere is also where the auroras occur, creating stunning displays of light in the sky.Finally, the exosphere is the outermost layer of the atmospheric layer, extending from around 600 kilometers to about 10,000 kilometers. This layer gradually fades into outer space, and it is where satellites orbit the Earth. The exosphere is largely composed of hydrogen and helium, with very few particles, making it almost a vacuum.The importance of the atmospheric layer cannot be overstated. It not only provides the air we breathe but also protects us from the harsh conditions of space. Additionally, it regulates the Earth's temperature through the greenhouse effect, allowing for a stable climate that supports diverse ecosystems. However, human activities have led to significant changes in the atmospheric layer, particularly through the emission of greenhouse gases. This has resulted in global warming, which poses a serious threat to our environment and way of life.In conclusion, the atmospheric layer is an intricate and vital part of our planet's system. It encompasses various layers, each with unique roles that contribute to the overall health of the Earth. As stewards of our planet, it is our responsibility to understand and protect these layers to ensure a sustainable future for generations to come. By raising awareness about the significance of the atmospheric layer, we can inspire action towards preserving our atmosphere and combating climate change.

地球被一系列保护层包围，这些层被称为大气层。其中一个最重要的组成部分是大气层，它在维持我们星球的生命中发挥着关键作用。大气层指的是包围地球的各种气体层，每一层都有不同的特征和功能。理解这些层对于理解它们如何影响我们的日常生活、天气模式以及气候变化至关重要。大气层通常分为几个关键层次：对流层、平流层、中间层、热层和外层。最低的层是对流层，从地球表面延伸到大约8到15公里高，具体取决于地点。这是所有天气现象发生的地方，使得大气层对气象学至关重要。它包含了大气中大多数的质量，包括水蒸气，这是降水和云形成所必需的。在对流层之上是平流层，从大约15公里延伸到大约50公里。这一层是臭氧层的家园，臭氧层吸收和散射紫外线太阳辐射。如果没有这一保护性的大气层，地球上的生命将暴露在有害的紫外线下，导致皮肤癌和其他健康问题的发生率增加。臭氧层的存在表明了大气层对保护生物体的重要性。随着我们向上移动，中间层从50公里延伸到大约85公里。这一层的特点是温度逐渐降低，也是大多数流星在进入地球大气层时燃烧的地方。接下来是热层，从85公里延伸到大约600公里。在这里，温度可以飙升到几千摄氏度，但空气如此稀薄，以至于人类不会感到热。热层也是极光发生的地方，创造出令人惊叹的光影展示。最后，外层是大气层的最外层，从大约600公里延伸到大约10,000公里。这一层逐渐消失到外太空，是卫星环绕地球的地方。外层主要由氢和氦组成，颗粒非常少，使其几乎成为真空。大气层的重要性不容小觑。它不仅提供了我们呼吸的空气，还保护我们免受太空恶劣条件的影响。此外，它通过温室效应调节地球的温度，使稳定的气候得以维持，从而支持多样的生态系统。然而，人类活动导致了大气层的显著变化，特别是通过温室气体的排放。这导致了全球变暖，对我们的环境和生活方式构成了严重威胁。总之，大气层是我们星球系统中复杂而重要的一部分。它包含多个层次，每一层都有独特的角色，促进地球的整体健康。作为我们星球的管理者，我们有责任理解和保护这些层，以确保未来几代人的可持续发展。通过提高人们对大气层重要性的认识，我们可以激励行动，保护我们的气候并应对气候变化。