sastrugi

简明释义

英[sæˈstrʌɡi]美[sæˈstrʌɡi]

n. 雪面波纹，雪脊；波状沙层

英英释义

单词用法

同义词

反义词

例句

1.The surface was covered with high mound sastrugi.

表面覆盖有高丘的雪面波纹。

2.The surface was covered with high mound sastrugi.

表面覆盖有高丘的雪面波纹。

3.The guide explained that sastrugi can form rapidly during storms, altering the landscape dramatically.

向导解释说，雪脊可以在暴风雪中迅速形成，显著改变地貌。

4.The expedition team marked their path carefully to avoid the hidden sastrugi that could lead to injuries.

探险队小心翼翼地标记他们的路径，以避免隐藏的雪脊导致受伤。

5.As we camped for the night, the wind howled around the sastrugi, creating an eerie sound.

当我们夜间露营时，风在雪脊周围呼啸，发出诡异的声音。

6.Photographers often seek out sastrugi for their unique patterns and textures in winter landscapes.

摄影师们常常寻找雪脊，因为它们在冬季风景中呈现出独特的图案和质感。

7.The hikers struggled to navigate the rugged terrain, constantly tripping over the sharp edges of the sastrugi.

徒步旅行者们在崎岖的地形中挣扎，时不时被尖锐的雪脊绊倒。

作文

The vast, icy landscapes of the polar regions are often characterized by their stunning beauty and extreme conditions. Among the many fascinating phenomena found in these areas is the formation of sastrugi, which refers to sharp, irregular ridges or grooves formed on the surface of snow due to wind erosion and deposition. These unique formations can be both mesmerizing and treacherous for those who venture into such environments.Understanding sastrugi requires a basic knowledge of how snow behaves under various weather conditions. When strong winds blow across a snow-covered surface, they can cause the snow to drift and shift. As the wind moves, it picks up loose snow particles and carries them away, creating depressions. Simultaneously, the wind deposits snow in other areas, leading to the creation of raised ridges. This process can result in the formation of large, wave-like patterns that can vary significantly in size and shape.In addition to their aesthetic appeal, sastrugi can pose significant challenges for explorers and researchers in polar regions. Navigating through areas with pronounced sastrugi can be difficult, as the uneven terrain can hide crevasses or lead to unexpected changes in elevation. For this reason, understanding the presence and characteristics of sastrugi is crucial for anyone working in these remote and harsh environments.The study of sastrugi also provides insight into the broader climate and weather patterns of polar regions. Scientists often analyze these formations to understand wind patterns, snow accumulation, and even the effects of climate change. As global temperatures rise, the behavior of snow and ice is changing, leading to alterations in the formation of sastrugi. By studying these patterns, researchers can gain valuable information about the health of polar ecosystems and the impacts of climate change on these fragile environments.Furthermore, sastrugi have cultural significance for indigenous peoples who inhabit polar regions. For example, the Inuit have long relied on their deep understanding of the land and its features, including sastrugi, for navigation and hunting. The knowledge passed down through generations highlights the importance of recognizing and respecting these natural formations.In conclusion, sastrugi are more than just an interesting feature of snowy landscapes; they represent a complex interaction between wind, snow, and climate. Whether one is an adventurer, a scientist, or a member of an indigenous community, understanding sastrugi is essential for navigating and appreciating the beauty and challenges of polar environments. As we continue to explore these remote areas, let us remain mindful of the delicate balance of nature and the intricate processes that shape our world.

极地地区广袤而冰冷的景观常常以其惊人的美丽和极端条件为特征。在这些地区，许多迷人的现象中，sastrugi 的形成尤其引人注目，它指的是由于风的侵蚀和沉积而在雪面上形成的锋利、不规则的脊或沟槽。这些独特的形态对于那些冒险进入这种环境的人来说，既令人着迷又充满危险。理解 sastrugi 需要对雪在各种天气条件下的表现有基本的了解。当强风吹过覆盖着雪的表面时，会导致雪的漂移和移动。随着风的移动，它会带走松散的雪粒并将其带走，形成凹陷。同时，风会在其他区域沉积雪，从而形成隆起的脊。这一过程可以导致大规模波浪状图案的形成，这些图案的大小和形状可能会显著不同。除了美学吸引力之外，sastrugi 对于探险者和研究人员在极地地区也构成了重大挑战。在具有明显 sastrugi 的区域中导航可能非常困难，因为不平坦的地形可能隐藏裂缝或导致意想不到的高度变化。因此，了解 sastrugi 的存在和特征对于任何在这些偏远而严酷的环境中工作的人来说都是至关重要的。对 sastrugi 的研究还提供了对极地地区更广泛气候和天气模式的深入了解。科学家们经常分析这些形态，以了解风的模式、雪的积累，甚至气候变化的影响。随着全球温度的上升，雪和冰的行为正在发生变化，导致 sastrugi 的形成发生变化。通过研究这些模式，研究人员可以获得有关极地生态系统健康和气候变化对这些脆弱环境影响的宝贵信息。此外，sastrugi 对居住在极地地区的土著人民具有文化意义。例如，因纽特人长期以来依靠他们对土地及其特征的深入理解，包括 sastrugi，进行导航和狩猎。世代相传的知识突显了认识和尊重这些自然形态的重要性。总之，sastrugi 不仅仅是雪景中的一个有趣特征；它们代表了风、雪和气候之间复杂的相互作用。无论是冒险者、科学家还是土著社区的成员，理解 sastrugi 对于在极地环境中导航和欣赏美丽与挑战都是至关重要的。随着我们继续探索这些偏远地区，让我们始终牢记自然的微妙平衡以及塑造我们世界的复杂过程。