alternate glaciation

简明释义

交替冰川作用;

英英释义

例句

1.Models of Earth's climate suggest that alternate glaciation 交替冰川作用 is influenced by variations in solar radiation.

地球气候模型表明，交替冰川作用 受到太阳辐射变化的影响。

2.The study of Earth's climate history reveals patterns of alternate glaciation 交替冰川作用 and interglacial periods.

对地球气候历史的研究揭示了交替冰川作用 和间冰期的模式。

3.The evidence of alternate glaciation 交替冰川作用 can be found in sediment cores taken from the ocean floor.

在从海底取出的沉积物核心中可以找到交替冰川作用 的证据。

4.Scientists are investigating the causes of alternate glaciation 交替冰川作用 to better understand past climate changes.

科学家们正在研究交替冰川作用 的原因，以更好地理解过去的气候变化。

5.During periods of alternate glaciation 交替冰川作用, large ice sheets covered significant portions of the northern hemisphere.

在交替冰川作用 期间，大型冰盖覆盖了北半球的重要部分。

作文

The Earth has undergone various climatic changes throughout its history, one of the most significant being the periods of ice ages characterized by extensive glaciation. This phenomenon, known as alternate glaciation (交替冰川作用), refers to the cyclical process where the planet experiences alternating phases of glacial expansion and retreat. Understanding this concept is crucial for grasping how our climate has evolved over millions of years and how it may continue to change in the future.During the last few million years, the Earth has experienced a series of ice ages, each marked by distinct periods of cold temperatures and massive ice sheets covering large portions of the continents. These ice ages were not constant; rather, they were interspersed with warmer periods known as interglacials. The alternate glaciation (交替冰川作用) cycle has been influenced by various factors, including changes in Earth's orbit, variations in solar radiation, and the composition of the atmosphere.One of the most notable examples of alternate glaciation (交替冰川作用) can be seen in the Pleistocene Epoch, which lasted from about 2.6 million years ago to approximately 11,700 years ago. During this time, the Earth underwent several glacial and interglacial periods, leading to the formation of vast ice sheets that shaped the landscape we see today. The last glacial maximum occurred around 20,000 years ago, when ice covered much of North America, Europe, and Asia.The study of alternate glaciation (交替冰川作用) is essential for understanding the current climate crisis. As we observe rising global temperatures and melting glaciers, it becomes increasingly important to recognize the natural cycles that have historically governed our planet's climate. Scientists are now investigating how human activities, such as greenhouse gas emissions, are influencing these natural cycles and potentially accelerating the effects of climate change.Furthermore, the impacts of alternate glaciation (交替冰川作用) extend beyond just temperature changes. These glacial periods have played a significant role in shaping ecosystems and biodiversity. For instance, during glacial periods, many species were forced to adapt to colder conditions or migrate to more hospitable environments. This led to the evolution of various species and the extinction of others, demonstrating the profound influence of climate on life on Earth.In conclusion, the concept of alternate glaciation (交替冰川作用) is vital for understanding the Earth's climatic history and the ongoing changes we face today. By studying the patterns of glacial expansion and retreat, we can gain insights into the mechanisms driving climate change and the potential consequences for our planet's future. As we navigate the challenges posed by global warming, it is crucial to consider both the natural processes that have shaped our climate and the impact of human activities. Only through a comprehensive understanding of alternate glaciation (交替冰川作用) can we hope to develop effective strategies for mitigating climate change and preserving the delicate balance of our ecosystems.

地球在其历史上经历了各种气候变化，其中最显著的变化是冰川时期，特征是广泛的冰川作用。这一现象被称为交替冰川作用，指的是一个周期性过程，地球经历冰川扩张和退缩的交替阶段。理解这一概念对于掌握我们气候在数百万年间如何演变以及未来可能继续变化的方式至关重要。在过去几百万年中，地球经历了一系列冰川时期，每个时期都以寒冷温度和覆盖大部分大陆的大规模冰盖为特征。这些冰川时期并不是恒定的；相反，它们与称为间冰期的温暖时期交替出现。交替冰川作用的循环受到多种因素的影响，包括地球轨道的变化、太阳辐射的变化和大气成分的变化。交替冰川作用的一个显著例子可以在更新世时期看到，该时期从大约260万年前持续到大约11700年前。在这段时间里，地球经历了多个冰川和间冰期，导致形成了巨大的冰盖，塑造了我们今天所看到的景观。最后一次冰川最大期发生在大约20000年前，当时冰层覆盖了北美、欧洲和亚洲的大部分地区。研究交替冰川作用对于理解当前气候危机至关重要。当我们观察到全球气温上升和冰川融化时，认识到历史上主导我们星球气候的自然循环变得愈发重要。科学家们现在正在研究人类活动（如温室气体排放）如何影响这些自然循环，并可能加速气候变化的影响。此外，交替冰川作用的影响不仅仅限于温度变化。这些冰川时期在塑造生态系统和生物多样性方面发挥了重要作用。例如，在冰川时期，许多物种被迫适应更寒冷的条件或迁移到更适宜的环境。这导致了不同物种的进化和其他物种的灭绝，展示了气候对地球生命的深远影响。总之，交替冰川作用的概念对于理解地球的气候历史和我们今天面临的持续变化至关重要。通过研究冰川扩张和退缩的模式，我们可以获得推动气候变化的机制的见解，以及对我们星球未来的潜在影响。在应对全球变暖带来的挑战时，考虑塑造我们气候的自然过程和人类活动的影响至关重要。只有通过全面理解交替冰川作用，我们才能希望制定有效的策略来减缓气候变化，保护我们生态系统的微妙平衡。