气候变化领域集成服务门户(CCPortal): Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary

CCPortal

DOI	10.1029/2020JC016256
	Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary
	Pareja-Roman L.F.; Chant R.J.; Sommerfield C.K.
发表日期	2020
ISSN	21699275
卷号	125 期号:12
英文摘要	Anthropogenic modifications of estuarine morphology such as navigational channels have changed tidal dynamics in many estuaries. The implications of deepening may include shifts in tidal range, sediment transport, pollutant dispersal, and changes in flood risk, among others. Here, we use a numerical model to study how channel deepening has altered tidal elevation, currents, and energy fluxes in the Delaware, a convergent estuary on the east coast of the United States. Historical (1848) and modern (2014) depth soundings were digitized and gridded for a numerical model of the estuary. Numerical experiments indicate a doubling in tidal range, shifts in the arrival time of high water, and changes in elevation-velocity phase. A historical increase in the upstream conveyance and transmission of energy is consistent with bigger amplitudes, swifter currents, and more progressive wave dynamics in the navigational channel. Changes in local topography were key in the modulation of tidal energy transmission upstream, especially in the tidal river. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Barotropic; Dredging; Energy flux; Tidal hydraulics
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186542
作者单位	Department of Marine and Coastal Sciences, Rutgers University, New BrunswickNJ, United States; Now at Department of Civil, Environmental, and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, United States; School of Marine Science and Policy, University of Delaware, Lewes, DE, United States
推荐引用方式 GB/T 7714	Pareja-Roman L.F.,Chant R.J.,Sommerfield C.K.. Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary[J],2020,125(12).
APA	Pareja-Roman L.F.,Chant R.J.,&Sommerfield C.K..(2020).Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary.Journal of Geophysical Research: Oceans,125(12).
MLA	Pareja-Roman L.F.,et al."Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary".Journal of Geophysical Research: Oceans 125.12(2020).