Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091464 |
Fluvial channel branching enforces threshold relief | |
Maxwell T. Cunningham; Michael R. Kaplan | |
2020-12-28 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | Relief within mountain belts appears to be limited to a threshold of 1000‐1500 m. However, it remains unclear definitively where in the landscape this threshold is found. Here we use a new method of analysis, termed Progressive Hypsometry, to show that “threshold relief” is the typical relief of first‐order fluvial catchments. The method tracks changes in the elevation frequency distribution (hypsometry) across nested catchments of all sizes. We find that self‐similar nesting of fluvial catchments leads to quasi‐scale invariance in hypsometry, such that the relief between any catchment's modal and outlet elevation (RMo, mode relief) falls into three groups: the two lower associated with steep, upland subcatchments (RMo=250‐1000 m) and the other with fluvial catchments, which span orders of magnitude in area but maintain an RMo of 1000‐1500 m. We conclude that threshold relief is the maximum relief a first‐order fluvial catchment can develop without branching. |
领域 | 气候变化 |
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/311445 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Maxwell T. Cunningham,Michael R. Kaplan. Fluvial channel branching enforces threshold relief[J]. Geophysical Research Letters,2020. |
APA | Maxwell T. Cunningham,&Michael R. Kaplan.(2020).Fluvial channel branching enforces threshold relief.Geophysical Research Letters. |
MLA | Maxwell T. Cunningham,et al."Fluvial channel branching enforces threshold relief".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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