firn

简明释义

英[fɪən]美[fɪrn]

n. 积雪；[水文]粒雪

n. （Firn）人名；（法、德）菲恩

英英释义

单词用法

同义词

反义词

例句

1.One big early, environmental sanitation workers are taking the firn of main main road inside city of big broom broom.

一大早，环卫工人们便拿着大扫帚扫除市内主要交通干线的积雪。

2.Snowslide, The Flow of snow in wind, firn, it is snow Disaster in alp.

雪崩、风吹雪及厚层积雪，是高山和严寒地区特有的一种自然灾害。

3.Until water flowed through the tether, the team could not tell if the meltwater was draining into the firn or accumulating around the drill, which could freeze the borehole shut.

在水尚未流经缆绳前，研究团队无法确定，融化的水是会流入粒雪中，还是会聚积在钻头的周围。如果是后者，将会使凿孔因冻结而封闭。

4.Atmospheric histories of halocarbons from analysis of Antarctic firn air: methyl bromide, methyl chloride, chloroform, and dichloromethane.

从南极永久性积雪空气分析大气卤烃的历史：甲基溴化物，甲基氯化物，氯仿和二氯甲。

5.With further melting, refreezing, and increased weight from newer snowfall above, the snow reaches a granular recrystallized stage intermediate between flakes and ice known as firn.

随着进一步的融化、再结冰，以及上方新的降雪增加的重量，这些雪变成再次结晶阶段的颗粒状中间物，介于小薄片与冰块之间，被称作万年雪。

6.Until water flowed through the tether, the team could not tell if the meltwater was draining into the firn or accumulating around the drill, which could freeze the borehole shut.

在水尚未流经缆绳前，研究团队无法确定，融化的水是会流入粒雪中，还是会聚积在钻头的周围。如果是后者，将会使凿孔因冻结而封闭。

7.With additional time, pressure, and refrozen meltwater from above, the small firn granules become larger, interlocked crystals of blue glacial ice.

随着时间的推移，压力的增加，再加上从上方重新冻结的融水，小冰原颗粒成为相互锁结的大晶体蓝色冰川冰。

8.Firn: granular partially consolidated snow that has passed through one summer melt season but is not yet glacial ice.

粒雪，万年雪：经过一个夏季的溶化期但仍未成冰川的粒状且部分沉固的雪。

9.To conch channel cannot miss 3 old scene: Want far the Gonggaxue that hopes firn of all the year round is not changed hill;

到海螺沟不能错过三大景致：一要远望终年积雪不化的贡嘎雪山；

10.The climbers discovered that the upper slopes were covered in firn, which made their ascent more challenging.

登山者发现上坡被firn（老雪）覆盖，这使得他们的上升更加具有挑战性。

11.During the expedition, we encountered a layer of firn that had formed over the previous winter.

在探险过程中，我们遇到了一层在前一个冬天形成的firn（老雪）。

12.The researchers studied the properties of firn to understand glacier dynamics better.

研究人员研究firn（老雪）的性质，以更好地理解冰川动态。

13.As the temperature rose, the firn began to melt, contributing to rising sea levels.

随着温度上升，firn（老雪）开始融化，导致海平面上升。

14.The ski resort's backcountry area was known for its excellent firn conditions in late spring.

这个滑雪胜地的后山区域以其优良的晚春firn（老雪）条件而闻名。

作文

In the vast expanse of polar landscapes, one can often find the fascinating phenomenon known as firn. This term refers to a specific type of granular snow that has been compacted over time, transitioning from fresh snow to a denser form. The process of formation begins when snow accumulates in high-altitude areas or polar regions, where temperatures remain low enough to prevent complete melting during warmer seasons. Over time, layers of snow build upon each other, and the weight of the upper layers compresses the lower ones, transforming them into firn (细颗粒雪). The significance of firn extends beyond its physical properties; it plays a crucial role in the glacial environment. As firn continues to accumulate and compact, it eventually turns into glacial ice, which is essential for the formation of glaciers. These massive rivers of ice are vital indicators of climate change, as they respond sensitively to variations in temperature and precipitation. Scientists study firn to understand past climate conditions, as the layers of firn can trap air bubbles that preserve ancient atmospheres, providing valuable data about Earth's climatic history. Moreover, the presence of firn can influence local ecosystems. In some regions, firn acts as a reservoir of freshwater, slowly releasing meltwater during the warmer months. This meltwater is critical for sustaining flora and fauna in arid regions that depend on seasonal water supplies. Consequently, the study of firn is not only important for understanding glacial dynamics but also for assessing the health of ecosystems that rely on glacial meltwater. As climate change accelerates, the behavior of firn is changing dramatically. Warmer temperatures lead to increased melting, which can destabilize glaciers and result in rising sea levels. Researchers are particularly interested in how the characteristics of firn are evolving, as these changes can provide insight into the future of our planet's ice reserves. Understanding the dynamics of firn is thus critical for predicting the impacts of climate change on global sea levels and weather patterns. In conclusion, firn is more than just a type of snow; it is a key component of our planet's cryosphere with far-reaching implications for climate science, ecology, and environmental sustainability. By studying firn, we gain a deeper appreciation for the delicate balance of our ecosystems and the urgent need to address climate change. As we continue to explore the complexities of our planet, firn serves as a reminder of the intricate connections between snow, ice, and the world around us.

在极地景观的广阔空间中，人们常常可以发现一种迷人的现象，称为firn。这个术语指的是一种特定类型的颗粒状雪，它随着时间的推移而被压实，从新雪转变为更密集的形式。形成的过程始于雪在高海拔地区或极地地区的积累，在这些地方，温度保持在足够低的水平，以防止在温暖季节完全融化。随着时间的推移，雪层在彼此上方堆积，上层的重量压缩下层，将其转变为firn（细颗粒雪）。 firn的重要性不仅体现在其物理特性上；它在冰川环境中发挥着至关重要的作用。随着firn的不断积累和压实，它最终会转变为冰川冰，这对冰川的形成至关重要。这些巨大的冰流是气候变化的重要指标，因为它们对温度和降水的变化反应敏感。科学家研究firn以了解过去的气候条件，因为firn的层可以捕获空气泡沫，保存古代大气，提供有关地球气候历史的宝贵数据。 此外，firn的存在可以影响地方生态系统。在某些地区，firn充当淡水的储存库，在温暖的月份缓慢释放融水。这种融水对于维持依赖季节性水源的干旱地区的植物和动物至关重要。因此，firn的研究不仅对理解冰川动态重要，也是评估依赖冰川融水的生态系统健康的关键。 随着气候变化的加速，firn的行为正在发生剧烈变化。温暖的气温导致融化增加，这可能会使冰川不稳定并导致海平面上升。研究人员特别关注firn特征如何演变，因为这些变化可以提供关于我们星球冰储未来的见解。因此，理解firn的动态对于预测气候变化对全球海平面和天气模式的影响至关重要。 总之，firn不仅仅是一种雪；它是我们星球冰冻圈的关键组成部分，对气候科学、生态学和环境可持续性具有深远的影响。通过研究firn，我们对生态系统的微妙平衡和迫切需要解决气候变化的问题有了更深刻的认识。随着我们继续探索我们星球的复杂性，firn提醒我们雪、冰与我们周围世界之间错综复杂的联系。