Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094305 |
Influence of climate-forcing frequency on hillslope response | |
V. Godard; G. E. Tucker | |
2021-08-29 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Assessing rivers’ and hillslopes’ sensitivity to external forcing is paramount to understand landscape evolution, in particular as a response to Quaternary climate changes. River networks are usually considered to be the main conveyors of environmental signals, such as changes in precipitation, temperature, or baselevel. Yet because hillslopes provide the source of sediment for river networks, their response to environmental change also modulate landscape dynamics. In order to characterize such behavior we analyse the response times of a transport-limited hillslope. We use simple numerical models of denudation to study hillslope responses to oscillatory forcing and understand their filtering effects on environmental signals. Modifications in the frequency of climate oscillation, such as the change that occurred at the Mid-Pleistocene Transition, can significantly modulate hillslope sediment-flux response. We infer a wide range of hillslope responses, ranging from negligible change over the full range of climate-forcing frequencies, to a significant filtering of long-period signals. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/336604 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | V. Godard,G. E. Tucker. Influence of climate-forcing frequency on hillslope response[J]. Geophysical Research Letters,2021. |
APA | V. Godard,&G. E. Tucker.(2021).Influence of climate-forcing frequency on hillslope response.Geophysical Research Letters. |
MLA | V. Godard,et al."Influence of climate-forcing frequency on hillslope response".Geophysical Research Letters (2021). |
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