冰隙 - 百度百科
冰隙（crevasse， ice-crack）指冰川中的裂缝。 因冰川各部分运动速度不均而产生。 冰川中央部分运动较快，边缘部分运动较慢，因这种不等速的运动在两侧部分所产生的冰隙，称为侧冰隙；从狭处流出时，冰川向两侧展开，因破裂所产生的纵向冰隙，称纵冰隙 ...
冰裂隙 - 百度百科
冰裂隙（crevasse）冰川在运动过程中，冰层受应力作用形成的裂隙称冰裂隙。 常见于山岳冰川上。 垂直冰川流向的裂隙称横 裂隙 ，平行于冰川流向的裂隙称纵裂隙，与冰川流向斜交的裂隙称剁裂隙，环粒雪盆分布的裂隙称边缘裂隙。
冰隙 - 维基百科，自由的百科全书
概要. 冰川 在重力作用下每天会平移数十厘米左右，冰块移动速度不同产生的拉伸力导致冰隙的形成。. 冰隙一般宽一米左右，长数百米，深达数百米甚至上千米，很多冰隙表面覆盖冰雪十分隐蔽。. 冰隙是登山者的大敌。. 通常在通过冰川时用 登山杖 确认前方 ...
Glacier Power - What are Crevasses? - Alaska Satellite Facility
A crevasse is a crack in the surface of a glacier caused by extensive stress within the ice. For example, extensive stress can be caused by stretching if the glacier is speeding up as it flows down the valley. Crevasses can also be caused by the …
[科普中国]-冰隙- · 科普中国网 - kepuchina.cn
冰隙（crevasse， ice-crack）指冰川中的裂缝。 因冰川各部分运动速度不均而产生。 冰川中央部分运动较快，边缘部分运动较慢，因这种不等速的运动在两侧部分所产生的冰隙，称为侧冰隙；从狭处流出时，冰川向两侧展开，因破裂所产生的纵向冰隙，称纵冰隙 ...
Glacier Power: What are Crevasses? | NASA Earthdata
A crevasse is a crack in the surface of a glacier caused by extensive stress within the ice. For example, extensive stress can be caused by stretching if the glacier is speeding up as it flows down the valley. Crevasses can also be caused by the …
Crevasse - Wikipedia
A crevasse is a deep crack that forms in a glacier or ice sheet. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear stress causes a breakage along the faces.
南极典型冰架冰裂隙数据集（2015、2016、2020）- 时空三极环境 …
Crevasse dataset over typical ice shelves in Antarctica（2015、2016、2020）. 我们提出利用U-net网络进行冰裂隙识别探测的算法，可以实现南极冰裂隙的自动化探测。. 基于Sentinel-1 EW 1月、2月的数据，为了抑制SAR图像的相干斑噪声，选择Probabilistic Patch-Based Weights（PPB）算法进行 ...
Crevasse (Glacier) - SpringerLink
2014年10月14日 · “Crevasse” describes an open fracture or fissure, visible on the surface of a glacier, which has opened in response to local strain within the respective ice mass. Crevasses form where this strain has exceeded a critical tensional strength threshold (Vaughan 1993), effectively pulling a glacier apart.
crevasse - Education | National Geographic Society
2023年10月19日 · A crevasse is a deep, wedge -shaped opening in a moving mass of ice called a glacier. Crevasses usually form in the top 50 meters (160 feet) of a glacier, where the ice is brittle. Below that, a glacier is less brittle and can slide over uneven surfaces without cracking.