DOI: 10.1002/2013GL057906
论文题名: Sediment transport due to extreme events: The Hudson River estuary after tropical storms Irene and Lee
作者: Ralston D.K. ; Warner J.C. ; Geyer W.R. ; Wall G.R.
刊名: Geophysical Research Letters
ISSN: 0094-8431
EISSN: 1944-8162
出版年: 2013
卷: 40, 期: 20 起始页码: 5451
结束页码: 5455
语种: 英语
英文关键词: estuary
; sediment transport
; sediment trapping
; tidal river
Scopus关键词: Freshwater rivers
; Hudson river estuaries
; Intense precipitation
; Marine environment
; Sediment concentration
; Sediment trapping
; Terrigenous sediment
; Tidal river
; Estuaries
; Sediment transport
; Sedimentation
; Storms
; Rivers
; extreme event
; flooding
; hurricane event
; marine environment
; precipitation (climatology)
; remobilization
; sediment transport
; sediment trap
; sediment yield
; tidal channel
; tropical cyclone
; Hudson Estuary
; United States
英文摘要: Tropical Storms Irene and Lee in 2011 produced intense precipitation and flooding in the U.S. Northeast, including the Hudson River watershed. Sediment input to the Hudson River was approximately 2.7 megaton, about 5 times the long-term annual average. Rather than the common assumption that sediment is predominantly trapped in the estuary, observations and model results indicate that approximately two thirds of the new sediment remained trapped in the tidal freshwater river more than 1 month after the storms and only about one fifth of the new sediment reached the saline estuary. High sediment concentrations were observed in the estuary, but the model results suggest that this was predominantly due to remobilization of bed sediment. Spatially localized deposits of new and remobilized sediment were consistent with longer term depositional records. The results indicate that tidal rivers can intercept (at least temporarily) delivery of terrigenous sediment to the marine environment during major flow events. Key Points Sediment input to the Hudson by Irene and Lee 5 times the annual average About two thirds of the sediment input by storms remained trapped in the tidal river Suspended sediment in the lower estuary primarily due to bed remobilization ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885730750&doi=10.1002%2f2013GL057906&partnerID=40&md5=534802cc08188db6ade7a9193c3b503f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5695
Appears in Collections: 气候减缓与适应
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作者单位: Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering Department, MS No 11, Woods Hole, MA 02543, United States
Recommended Citation:
Ralston D.K.,Warner J.C.,Geyer W.R.,et al. Sediment transport due to extreme events: The Hudson River estuary after tropical storms Irene and Lee[J]. Geophysical Research Letters,2013-01-01,40(20).