Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-14583-8 |
The empirical basis for modelling glacial erosion rates | |
Simon J. Cook; Darrel A. Swift; Martin P. Kirkbride; Peter G. Knight; Richard I. Waller | |
2020-02-06 | |
发表期刊 | Nature |
出版年 | 2020 |
英文摘要 | Glaciers are highly effective agents of erosion that have profoundly shaped Earth鈥檚 surface, but there is uncertainty about how glacial erosion should be parameterised in landscape evolution models. Glacial erosion rate is usually modelled as a function of glacier sliding velocity, but the empirical basis for this relationship is weak. In turn, climate is assumed to control sliding velocity and hence erosion, but this too lacks empirical scrutiny. Here, we present statistically robust relationships between erosion rates, sliding velocities, and climate from a global compilation of 38 glaciers. We show that sliding is positively and significantly correlated with erosion, and derive a relationship for use in erosion models. Our dataset further demonstrates that the most rapid erosion is achieved at temperate glaciers with high mean annual precipitation, which serve to promote rapid sliding. Precipitation has received little attention in glacial erosion studies, but our data illustrate its importance. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249842 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Simon J. Cook,Darrel A. Swift,Martin P. Kirkbride,et al. The empirical basis for modelling glacial erosion rates[J]. Nature,2020. |
APA | Simon J. Cook,Darrel A. Swift,Martin P. Kirkbride,Peter G. Knight,&Richard I. Waller.(2020).The empirical basis for modelling glacial erosion rates.Nature. |
MLA | Simon J. Cook,et al."The empirical basis for modelling glacial erosion rates".Nature (2020). |
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