Dynamics of subglacial floods
Dynamics of subglacial floods
复制标题
冰下洪水的动力学
DOI：
10.1098/rspa.2008.0488
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
A. Fowler
中科院分区：
文献类型：
--
作者：
A. Fowler
jökulhlaups的Nye模型能够解释它们的周期性，甚至解释洪水线的详细形状。在本文中，我们展示了如何使用该模型来预测冰岛Vatnajökull下方的冰下湖Grímsvötn的水文曲线形状，并对在应用Nye模型时证明有争议的三个特定问题进行了评论：水温的作用；泄洪道的形状；以及床层粗糙度系数的取值。
The Nye model of jökulhlaups is able to explain both their periodicity and even the detailed shape of the flood hydrograph. In this paper, we show how the model can be used to predict the shape of the hydrographs from the subglacial lake Grímsvötn beneath Vatnajökull in Iceland, and we comment on three particular issues that have proved contentious in the application of the Nye model: the role of water temperature; the shape of the flood channel; and the value of the bed roughness coefficient.