basal ice

简明释义

底冰;

英英释义

例句

1.The team used radar to measure the thickness of the basal ice (基底冰) beneath the glacier.

团队使用雷达测量冰川下方的基底冰的厚度。

2.Changes in basal ice (基底冰) can influence the stability of ice sheets.

对基底冰的变化可能会影响冰盖的稳定性。

3.The flow of glaciers is often controlled by the properties of basal ice (基底冰).

冰川的流动通常受到基底冰性质的控制。

4.The researchers found that the melting of basal ice (基底冰) was accelerating due to rising temperatures.

研究人员发现，由于气温上升，基底冰的融化速度正在加快。

5.Understanding the dynamics of basal ice (基底冰) is crucial for predicting sea level rise.

理解基底冰的动态对于预测海平面上升至关重要。

作文

In the study of glaciology, one term that frequently arises is basal ice. This term refers to the layer of ice that is in direct contact with the underlying substrate, typically a glacier bed or the ground beneath it. Understanding basal ice is crucial for comprehending glacier dynamics and behavior. The interaction between basal ice and the bedrock can significantly influence the movement of glaciers, affecting their overall stability and flow patterns.The formation of basal ice occurs under specific conditions. As snow accumulates over time, it compresses and transforms into firn, which eventually becomes glacial ice. However, the temperature, pressure, and the presence of meltwater at the glacier's base play a vital role in the characteristics of basal ice. For instance, when temperatures rise, meltwater can form at the base of the glacier, leading to a lubricating effect that can enhance the sliding of the glacier over its bed. This phenomenon illustrates the dynamic nature of basal ice and its importance in the movement of glaciers.Moreover, basal ice is not uniform; it can vary in thickness and composition depending on the environmental conditions. In some regions, it may be composed of clean ice, while in others, it may contain debris and sediments. This variability can affect how glaciers interact with the landscape. For example, a glacier with a thick layer of basal ice might be more stable and less prone to rapid movement compared to one with a thinner layer, which could lead to increased sliding and potential calving events.Research on basal ice has gained significant attention in recent years, particularly in the context of climate change. As global temperatures rise, the melting of glaciers is becoming more pronounced, and understanding the mechanisms behind basal ice is essential for predicting future glacier behavior. Scientists are using advanced technologies, such as radar and seismic imaging, to study the properties and behavior of basal ice in real-time. These studies provide valuable insights into how glaciers respond to changing environmental conditions and help improve models that predict sea-level rise.In conclusion, basal ice plays a pivotal role in the dynamics of glaciers and their interactions with the environment. Its properties can influence glacier movement, stability, and response to climate change. As researchers continue to explore the complexities of basal ice, we gain a deeper understanding of the critical role glaciers play in our planet's climate system. The study of basal ice not only enhances our knowledge of glaciology but also informs us about the broader implications of global warming and the future of our planet's ice reserves.

在冰川学研究中，一个经常出现的术语是基冰。这个术语指的是与底层基质直接接触的冰层，通常是冰川床或其下方的地面。理解基冰对于理解冰川动态和行为至关重要。基冰与基岩之间的相互作用可以显著影响冰川的运动，进而影响它们的整体稳定性和流动模式。基冰的形成发生在特定条件下。随着时间的推移，雪的积累会压缩并转变为雪颗粒，最终成为冰川冰。然而，冰川底部的温度、压力和融水的存在在基冰的特性中起着至关重要的作用。例如，当温度上升时，融水可能会在冰川底部形成，从而产生润滑效果，增强冰川在其基底上的滑动。这一现象说明了基冰的动态特性及其在冰川运动中的重要性。此外，基冰并不均匀；根据环境条件，其厚度和成分可能有所不同。在某些地区，它可能由干净的冰组成，而在其他地区，则可能包含碎屑和沉积物。这种变异性可能会影响冰川与地形的相互作用。例如，具有厚层基冰的冰川可能更稳定，不易快速移动，而具有较薄层的冰川则可能导致增加滑动和潜在的崩解事件。近年来，关于基冰的研究受到显著关注，特别是在气候变化的背景下。随着全球气温的上升，冰川的融化变得更加明显，理解基冰背后的机制对于预测未来冰川行为至关重要。科学家们正在使用先进技术，如雷达和地震成像，实时研究基冰的特性和行为。这些研究提供了宝贵的见解，帮助我们了解冰川如何响应变化的环境条件，并改善预测海平面上升的模型。总之，基冰在冰川的动态及其与环境的相互作用中发挥着关键作用。它的特性可以影响冰川的运动、稳定性和对气候变化的响应。随着研究人员继续探索基冰的复杂性，我们对冰川在地球气候系统中所扮演的重要角色有了更深刻的理解。基冰的研究不仅增强了我们对冰川学的认识，也让我们了解全球变暖及我们星球冰储备未来的更广泛影响。