back radiation

简明释义

1. 反辐射; 2. 反向辐射; 3. 逆辐射;

英英释义

例句

1.The greenhouse effect is largely driven by back radiation (反辐射) from the Earth's surface.

温室效应主要是由地球表面的back radiation（反辐射）驱动的。

2.In climate models, back radiation (反辐射) plays a crucial role in determining temperature changes.

在气候模型中，back radiation（反辐射）在确定温度变化中起着关键作用。

3.The concept of back radiation (反辐射) helps explain why urban areas are warmer than rural areas.

back radiation（反辐射）的概念有助于解释为什么城市地区比农村地区更温暖。

4.Astronomers study back radiation (反辐射) to understand the cosmic microwave background.

天文学家研究back radiation（反辐射）以理解宇宙微波背景。

5.When discussing heat transfer, back radiation (反辐射) is often overlooked, yet it is essential.

在讨论热传递时，back radiation（反辐射）常常被忽视，但它是必不可少的。

作文

The concept of back radiation refers to the thermal radiation emitted by the Earth and its atmosphere back towards space. This phenomenon plays a crucial role in the Earth's energy balance and climate system. When the sun's rays reach the Earth, they are absorbed by the surface, warming it. The Earth, in turn, emits this energy back into the atmosphere in the form of infrared radiation. This process is essential for maintaining the planet's temperature and supporting life as we know it.Understanding back radiation is vital when discussing climate change and global warming. As human activities have increased the concentration of greenhouse gases in the atmosphere, the ability of these gases to absorb and re-radiate heat has intensified. This means that more of the infrared radiation emitted by the Earth is trapped within the atmosphere, leading to an increase in global temperatures. The implications of this are profound, affecting weather patterns, sea levels, and ecosystems around the world.To illustrate the importance of back radiation, consider the greenhouse effect. Greenhouse gases, such as carbon dioxide and methane, absorb the infrared radiation emitted by the Earth. Instead of allowing this energy to escape into space, these gases reflect some of it back towards the surface. This process creates a warming effect, which is necessary for life but can become problematic when excessive amounts of greenhouse gases are present.Moreover, back radiation also influences weather systems. For instance, during the night, when the sun is no longer heating the Earth's surface, back radiation from the atmosphere can help keep the temperature from dropping too low. This is particularly important in regions where temperatures can fluctuate significantly between day and night. Without this natural insulation, many areas would experience extreme temperature changes that could be detrimental to both the environment and human activities.In recent years, the debate surrounding back radiation has gained momentum, especially in discussions about climate policies and renewable energy sources. Some skeptics argue that the contributions of back radiation to climate change are overstated, while scientists emphasize the need for a comprehensive understanding of how this process interacts with other elements of the climate system. It is essential to recognize that while back radiation is a natural phenomenon, human-induced factors have significantly altered its dynamics.In conclusion, back radiation is a fundamental aspect of our climate system that warrants attention and understanding. It illustrates the complex interactions between the Earth's surface, atmosphere, and the sun's energy. As we face the challenges of climate change, recognizing the role of back radiation will be crucial in developing effective strategies to mitigate its impacts and promote a sustainable future. By enhancing our comprehension of this concept, we can better appreciate the delicate balance that sustains life on our planet and work towards preserving it for generations to come.

反辐射的概念是指地球及其大气层向太空发出的热辐射。这一现象在地球的能量平衡和气候系统中发挥着至关重要的作用。当阳光照射到地球时，地表吸收这些光线，使其变暖。地球又以红外辐射的形式将这部分能量重新发射回大气层。这个过程对于维持地球温度和支持我们所知的生命至关重要。理解反辐射在讨论气候变化和全球变暖时尤为重要。由于人类活动增加了大气中温室气体的浓度，这些气体吸收和再辐射热量的能力也随之增强。这意味着地球发出的更多红外辐射被困在大气中，从而导致全球气温上升。这一现象的影响深远，影响着全球的天气模式、海平面和生态系统。为了说明反辐射的重要性，可以考虑温室效应。温室气体如二氧化碳和甲烷吸收地球发出的红外辐射。这些气体不是让这些能量逃逸到太空，而是将其中的一部分反射回地表。这个过程产生了温暖效应，这是生命所必需的，但当过量的温室气体存在时，这种效应可能会变得有问题。此外，反辐射还影响天气系统。例如，在夜间，当太阳不再加热地表时，大气中的反辐射可以帮助防止温度下降得过低。这在温差较大的地区尤其重要。如果没有这种自然绝缘，许多地区的温度变化将会极端，这可能对环境和人类活动造成不利影响。近年来，围绕反辐射的辩论日益激烈，特别是在关于气候政策和可再生能源的讨论中。一些怀疑论者认为，反辐射对气候变化的贡献被夸大，而科学家则强调全面理解这一过程与气候系统其他因素之间相互作用的必要性。必须认识到，尽管反辐射是一种自然现象，但人类引起的因素显著改变了其动态。总之，反辐射是我们气候系统的一个基本方面，值得关注和理解。它展示了地球表面、大气层和太阳能量之间复杂的相互作用。面对气候变化的挑战，认识到反辐射的作用对于制定有效的减缓影响和促进可持续发展的策略至关重要。通过增强我们对这一概念的理解，我们可以更好地欣赏维持我们星球生命的微妙平衡，并努力为后代保护这一平衡。