Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary
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...
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| Veröffentlicht in: | Journal of geophysical research. Oceans 2020-12, Vol.125 (12), p.n/a |
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| creator | Pareja‐Roman, L. Fernando Chant, Robert J. Sommerfield, Christopher K. |
| description | 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.
Plain Language Summary
Channel deepening is a common engineering practice in many estuaries, rivers, and harbors worldwide. Although the benefits of shipping channels are evident in terms of commerce and recreation, the adjustment of water level and currents to a deeper channel involves hydrodynamic feedbacks that have been scarcely studied. The response of tides to channel deepening can also vary depending on basin geometry and coastline configuration, and it is necessary to study a wide range of estuarine systems to better understand the direct and indirect impacts induced by humans. We use a numerical model to study how a century of dredging impacted tidal flows and water level in the Delaware Estuary. We found that the reduction of friction associated with channel deepening doubled the tidal range in the upstream limit of the estuary.
Key Points
Channel deepening led to significant tidal amplification in the tidal Delaware River
Local topography modulates tidal energy fluxes along theestuary |
| doi_str_mv | 10.1029/2020JC016256 |
| format | Article |
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Plain Language Summary
Channel deepening is a common engineering practice in many estuaries, rivers, and harbors worldwide. Although the benefits of shipping channels are evident in terms of commerce and recreation, the adjustment of water level and currents to a deeper channel involves hydrodynamic feedbacks that have been scarcely studied. The response of tides to channel deepening can also vary depending on basin geometry and coastline configuration, and it is necessary to study a wide range of estuarine systems to better understand the direct and indirect impacts induced by humans. We use a numerical model to study how a century of dredging impacted tidal flows and water level in the Delaware Estuary. We found that the reduction of friction associated with channel deepening doubled the tidal range in the upstream limit of the estuary.
Key Points
Channel deepening led to significant tidal amplification in the tidal Delaware River
Local topography modulates tidal energy fluxes along theestuary</description><identifier>ISSN: 2169-9275</identifier><identifier>EISSN: 2169-9291</identifier><identifier>DOI: 10.1029/2020JC016256</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Anthropogenic factors ; Barotropic ; Basin geometry ; Bathymetry ; Bottom trawling ; Brackishwater environment ; Channels ; Commerce ; Computational fluid dynamics ; Dispersal ; Dredging ; Elevation ; Energy ; Energy flux ; Energy transmission ; Environmental risk ; Estuaries ; Estuarine dynamics ; Flood risk ; Fluid flow ; Fluxes ; Friction reduction ; Geophysics ; Harbors ; Human influences ; Hydraulics ; Hydrodynamics ; Mathematical models ; Navigational channels ; Numerical experiments ; Numerical models ; Pollutants ; Pollution dispersion ; Progressive waves ; River channels ; Rivers ; Sediment transport ; Shipping ; Soundings ; Tidal dynamics ; Tidal energy ; Tidal flow ; Tidal hydraulics ; Tidal power ; Tidal range ; Tidal rivers ; Tidal waterways ; Upstream ; Water currents ; Water levels ; Wave dynamics</subject><ispartof>Journal of geophysical research. Oceans, 2020-12, Vol.125 (12), p.n/a</ispartof><rights>2020. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3303-f6197804dad559f36fe48e256d29128a425dec617002a7c6f9a46e04f6230d793</citedby><cites>FETCH-LOGICAL-a3303-f6197804dad559f36fe48e256d29128a425dec617002a7c6f9a46e04f6230d793</cites><orcidid>0000-0002-8273-5312 ; 0000-0001-8317-4046 ; 0000-0003-0927-4684</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2020JC016256$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2020JC016256$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,27924,27925,45574,45575,46409,46833</link.rule.ids></links><search><creatorcontrib>Pareja‐Roman, L. Fernando</creatorcontrib><creatorcontrib>Chant, Robert J.</creatorcontrib><creatorcontrib>Sommerfield, Christopher K.</creatorcontrib><title>Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary</title><title>Journal of geophysical research. Oceans</title><description>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.
Plain Language Summary
Channel deepening is a common engineering practice in many estuaries, rivers, and harbors worldwide. Although the benefits of shipping channels are evident in terms of commerce and recreation, the adjustment of water level and currents to a deeper channel involves hydrodynamic feedbacks that have been scarcely studied. The response of tides to channel deepening can also vary depending on basin geometry and coastline configuration, and it is necessary to study a wide range of estuarine systems to better understand the direct and indirect impacts induced by humans. We use a numerical model to study how a century of dredging impacted tidal flows and water level in the Delaware Estuary. We found that the reduction of friction associated with channel deepening doubled the tidal range in the upstream limit of the estuary.
Key Points
Channel deepening led to significant tidal amplification in the tidal Delaware River
Local topography modulates tidal energy fluxes along theestuary</description><subject>Anthropogenic factors</subject><subject>Barotropic</subject><subject>Basin geometry</subject><subject>Bathymetry</subject><subject>Bottom trawling</subject><subject>Brackishwater environment</subject><subject>Channels</subject><subject>Commerce</subject><subject>Computational fluid dynamics</subject><subject>Dispersal</subject><subject>Dredging</subject><subject>Elevation</subject><subject>Energy</subject><subject>Energy flux</subject><subject>Energy transmission</subject><subject>Environmental risk</subject><subject>Estuaries</subject><subject>Estuarine dynamics</subject><subject>Flood risk</subject><subject>Fluid flow</subject><subject>Fluxes</subject><subject>Friction reduction</subject><subject>Geophysics</subject><subject>Harbors</subject><subject>Human influences</subject><subject>Hydraulics</subject><subject>Hydrodynamics</subject><subject>Mathematical models</subject><subject>Navigational channels</subject><subject>Numerical experiments</subject><subject>Numerical models</subject><subject>Pollutants</subject><subject>Pollution dispersion</subject><subject>Progressive waves</subject><subject>River channels</subject><subject>Rivers</subject><subject>Sediment transport</subject><subject>Shipping</subject><subject>Soundings</subject><subject>Tidal dynamics</subject><subject>Tidal energy</subject><subject>Tidal flow</subject><subject>Tidal hydraulics</subject><subject>Tidal power</subject><subject>Tidal range</subject><subject>Tidal rivers</subject><subject>Tidal waterways</subject><subject>Upstream</subject><subject>Water currents</subject><subject>Water levels</subject><subject>Wave dynamics</subject><issn>2169-9275</issn><issn>2169-9291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kFtLAzEQhYMoWLRv_oCAr67mttnkUdbaCwWh1OcQNolN2WbXZJfSf2-kIj45MMzAfMw5HADuMHrEiMgnggha1QhzUvILMCGYy0ISiS9_96q8BtOU9iiXwIIxOQGb5aHXzQA7Bxc-DV30jW5hvdMh2Ba-WNvb4MMH7ALcepNPi5OJemx9k6APcNjZDLX6qKOFszSMOp5uwZXTbbLTn3kD3l9n23pRrN_my_p5XWhKES0cx7ISiBltylI6yp1lwmbzJpsmQjNSGttwXCFEdNVwJzXjFjHHCUWmkvQG3J__9rH7HG0a1L4bY8iSirCKiFLmztTDmWpil1K0TvXRH7JNhZH6Dk79DS7j9IwffWtP_7JqNd_UhBFB6Rfqz2yd</recordid><startdate>202012</startdate><enddate>202012</enddate><creator>Pareja‐Roman, L. Fernando</creator><creator>Chant, Robert J.</creator><creator>Sommerfield, Christopher K.</creator><general>Blackwell Publishing Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0002-8273-5312</orcidid><orcidid>https://orcid.org/0000-0001-8317-4046</orcidid><orcidid>https://orcid.org/0000-0003-0927-4684</orcidid></search><sort><creationdate>202012</creationdate><title>Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary</title><author>Pareja‐Roman, L. Fernando ; Chant, Robert J. ; Sommerfield, Christopher K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3303-f6197804dad559f36fe48e256d29128a425dec617002a7c6f9a46e04f6230d793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anthropogenic factors</topic><topic>Barotropic</topic><topic>Basin geometry</topic><topic>Bathymetry</topic><topic>Bottom trawling</topic><topic>Brackishwater environment</topic><topic>Channels</topic><topic>Commerce</topic><topic>Computational fluid dynamics</topic><topic>Dispersal</topic><topic>Dredging</topic><topic>Elevation</topic><topic>Energy</topic><topic>Energy flux</topic><topic>Energy transmission</topic><topic>Environmental risk</topic><topic>Estuaries</topic><topic>Estuarine dynamics</topic><topic>Flood risk</topic><topic>Fluid flow</topic><topic>Fluxes</topic><topic>Friction reduction</topic><topic>Geophysics</topic><topic>Harbors</topic><topic>Human influences</topic><topic>Hydraulics</topic><topic>Hydrodynamics</topic><topic>Mathematical models</topic><topic>Navigational channels</topic><topic>Numerical experiments</topic><topic>Numerical models</topic><topic>Pollutants</topic><topic>Pollution dispersion</topic><topic>Progressive waves</topic><topic>River channels</topic><topic>Rivers</topic><topic>Sediment transport</topic><topic>Shipping</topic><topic>Soundings</topic><topic>Tidal dynamics</topic><topic>Tidal energy</topic><topic>Tidal flow</topic><topic>Tidal hydraulics</topic><topic>Tidal power</topic><topic>Tidal range</topic><topic>Tidal rivers</topic><topic>Tidal waterways</topic><topic>Upstream</topic><topic>Water currents</topic><topic>Water levels</topic><topic>Wave dynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pareja‐Roman, L. Fernando</creatorcontrib><creatorcontrib>Chant, Robert J.</creatorcontrib><creatorcontrib>Sommerfield, Christopher K.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of geophysical research. Oceans</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pareja‐Roman, L. Fernando</au><au>Chant, Robert J.</au><au>Sommerfield, Christopher K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary</atitle><jtitle>Journal of geophysical research. Oceans</jtitle><date>2020-12</date><risdate>2020</risdate><volume>125</volume><issue>12</issue><epage>n/a</epage><issn>2169-9275</issn><eissn>2169-9291</eissn><abstract>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.
Plain Language Summary
Channel deepening is a common engineering practice in many estuaries, rivers, and harbors worldwide. Although the benefits of shipping channels are evident in terms of commerce and recreation, the adjustment of water level and currents to a deeper channel involves hydrodynamic feedbacks that have been scarcely studied. The response of tides to channel deepening can also vary depending on basin geometry and coastline configuration, and it is necessary to study a wide range of estuarine systems to better understand the direct and indirect impacts induced by humans. We use a numerical model to study how a century of dredging impacted tidal flows and water level in the Delaware Estuary. We found that the reduction of friction associated with channel deepening doubled the tidal range in the upstream limit of the estuary.
Key Points
Channel deepening led to significant tidal amplification in the tidal Delaware River
Local topography modulates tidal energy fluxes along theestuary</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2020JC016256</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0002-8273-5312</orcidid><orcidid>https://orcid.org/0000-0001-8317-4046</orcidid><orcidid>https://orcid.org/0000-0003-0927-4684</orcidid></addata></record> |
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| ispartof | Journal of geophysical research. Oceans, 2020-12, Vol.125 (12), p.n/a |
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| source | Wiley Online Library; Alma/SFX Local Collection |
| subjects | Anthropogenic factors Barotropic Basin geometry Bathymetry Bottom trawling Brackishwater environment Channels Commerce Computational fluid dynamics Dispersal Dredging Elevation Energy Energy flux Energy transmission Environmental risk Estuaries Estuarine dynamics Flood risk Fluid flow Fluxes Friction reduction Geophysics Harbors Human influences Hydraulics Hydrodynamics Mathematical models Navigational channels Numerical experiments Numerical models Pollutants Pollution dispersion Progressive waves River channels Rivers Sediment transport Shipping Soundings Tidal dynamics Tidal energy Tidal flow Tidal hydraulics Tidal power Tidal range Tidal rivers Tidal waterways Upstream Water currents Water levels Wave dynamics |
| title | Impact of Historical Channel Deepening on Tidal Hydraulics in the Delaware Estuary |
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