Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL083819 |
Simple Metrics Predict Salt-Marsh Sediment Fluxes | |
Nowacki, Daniel J.1; Ganju, Neil K.2 | |
2019-11-13 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:21页码:12250-12257 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The growth (or decay) of salt marshes depends on suspended-sediment flux into and out of the marsh. Suspended-sediment concentration (SSC) is a key element of the flux, and SSC-based metrics reflect the long-term sediment-flux trajectories of a variety of salt marshes. One metric, the flood-ebb SSC differential, correlates with area-normalized sediment flux and can indicate salt-marsh resilience over months to years. We hypothesize that these metrics may be relevant over shorter time periods. With data from 13 salt-marsh channels, we show that sediment flux direction and magnitude can be inferred from SSC differential over a wide range of timescales. Furthermore, in settings characterized by a standing tidal wave, the water-level gradient can be used instead of velocity to compute the SSC differential, enabling less-intensive measurements that capture fundamental sediment-flux parameters. Distilling the sediment-flux trajectory into simple metrics improves sediment-budget assessment, drives geomorphic model development, and clarifies field observations. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000495988400001 |
WOS关键词 | ACCRETION ; MODEL ; BAY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/225011 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.US Geol Survey, Santa Cruz, CA 95060 USA; 2.US Geol Survey, Woods Hole, MA 02543 USA |
推荐引用方式 GB/T 7714 | Nowacki, Daniel J.,Ganju, Neil K.. Simple Metrics Predict Salt-Marsh Sediment Fluxes[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):12250-12257. |
APA | Nowacki, Daniel J.,&Ganju, Neil K..(2019).Simple Metrics Predict Salt-Marsh Sediment Fluxes.GEOPHYSICAL RESEARCH LETTERS,46(21),12250-12257. |
MLA | Nowacki, Daniel J.,et al."Simple Metrics Predict Salt-Marsh Sediment Fluxes".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):12250-12257. |
条目包含的文件 | 条目无相关文件。 |
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