坡向基于冰川流线轴线方向。流线轴线与冰流方向相同吗?山的侧面是什么(比如在热带地区)。冰川的外貌会与冰川下的山的外貌不同吗?< / p >

Aspect是指一个曲面被指向的方向。根据你考虑的坡度不同，一座山会有不同的方面，所以你认为一座山只有一个方面的概念是不正确的。因此，热带地区的山坡仍然有北、南、东、西等方向。至于计算冰川的坡向，可能有点复杂。较小的冰川占据一个圈或一个山谷将很容易评估，因为它将是冰川斜坡的方向，山谷冰川的山谷方向。也就是说，一个山谷冰川有几个贡献的cirques或side valley是很常见的，这些cirques或side valley本身与冰川的主要部分有不同的方面。< / p >

When considering larger valley glaciers the valleys in which they reside can have varying directions along the glacier length so that the aspect fo the glacier varies along its length. The extreme case will be an ice cap which like a solitary mountain will have aspects varying 360 deg depending on which part of the ice cap you study. Oftan ice caps are divided into separate catechments and this aspect is given for each of the catchment rather than the ice cap as a whole.

So aspect of a glacier will reflect the general flow direction of the glacier, reflecting the topography in which it is located, but it can be a very difficult parameter to evaluate for some cases.