Recent Publications - August-September 2020
By Coastal and Marine Hazards and Resources Program
September 30, 2020
List of recent USGS publications and data releases based on coastal and marine research.
Related Content
Filter Total Items: 19
Focused fluid flow along the Nootka Fault Zone and continental slope, Explorer-Juan de Fuca plate boundary
Geophysical and geochemical data indicate there is abundant fluid expulsion in the Nootka fault zone (NFZ) between the Juan de Fuca and Explorer plates and the Nootka continental slope. Here we combine observations from > 20 years of investigations to
demonstrate the nature of fluid-flow along the NFZ, which is the seismically most active region off Vancouver Island. Seismicity reaching down to th
Authors
M. Riedel, K .M. M. Rohr, G. D. Spence, D. Kelley, J. Delaney, L. Lapham, John Pohlman, R.D. Hyndman, E.C. Willoughby
Data-driven, multi-model workflow suggests strong influence from hurricanes on the generation of turbidity currents in the Gulf of Mexico
Turbidity currents deliver sediment rapidly from the continental shelf to the slope and beyond; and can be triggered by processes such as shelf resuspension during oceanic storms; mass failure of slope deposits due to sediment- and wave-pressure loadings; and localized events that grow into sustained currents via self-amplifying ignition. Because these operate over multiple spatial and temporal sc
Authors
Courtney K. Harris, Jaia Syvitski, H.G. Arango, E. H. Meiburg, Sagy Cohen, C.J. Jenkins, Justin J. Birchler, E. W. H. Hutton, T. A. Kniskern, S. Radhakrishnan, Guillermo Auad
Sediment delivery to marsh platforms minimized by source decoupling and flux convergence
Sediment supply is a primary factor in determining marsh response to sea level rise and is typically approximated through high‐resolution measurements of suspended sediment concentrations (SSCs) from adjacent tidal channels. However, understanding sediment transport across the marsh itself remains limited by discontinuous measurements of SSC over individual tidal cycles. Here, we use an array of o
Authors
Daniel Coleman, Neil K. Ganju, Matthew Kirwan
Large-scale erosion driven by intertidal eelgrass loss in an estuarine environment
Seagrasses influence local hydrodynamics by inducing drag on the flow and dampening near-bed velocities and wave energy. When seagrasses are lost, near-bed currents and wave energy can increase, which enhances bottom shear stresses, destabilizes sediment, and promotes suspension and erosion. Though seagrasses are being lost rapidly globally, the magnitude of change in sediment stabilization follow
Authors
Ryan K. Walter, Jenifer K. O’Leary, Sean Vitousek, Mohsen Taherkhani, Carolyn Geraghty, Ann Kitajima
The importance of explicitly modelling sea-swell waves for runup on reef-lined coasts
The importance of explicitly modelling sea-swell waves for runup was examined using a 2D XBeach short wave-averaged (surfbeat, “XB-SB”) and a wave-resolving (non-hydrostatic, “XB-NH”) model of Roi-Namur Island on Kwajalein Atoll in the Republic of Marshall Islands. Field observations on water levels, wave heights, and wave runup were used to drive and evaluate both models, which were subsequently
Authors
Ellen Quataert, Curt D. Storlazzi, Ap van Dongeren, Robert T. McCall
Seismic stratigraphic framework of the continental shelf offshore Delmarva, U.S.A.: Implications for Mid-Atlantic Bight evolution since the Pliocene
Understanding how past coastal systems have evolved is critical to predicting future coastal change. Using over 12,000 trackline kilometers of recently collected, co-located multi-channel boomer, sparker and chirp seismic reflection profile data integrated with previously collected borehole and vibracore data, we define the upper (< 115 m below mean lower low water) seismic stratigraphic framework
Authors
Laura L. Brothers, David S. Foster, Elizabeth A. Pendleton, Wayne E. Baldwin
The Everglades Depth Estimation Network (EDEN) surface-water model, version 2
The Everglades Depth Estimation Network (EDEN) is an integrated network of water-level gages, interpolation models that generate daily water-level and water-depth data, and applications that compute derived hydrologic data across the freshwater part of the greater Everglades landscape. The U.S. Geological Survey Greater Everglades Priority Ecosystems Science provides support for EDEN in order for
Authors
Pamela A. Telis, Zhixiao Xie, Zhongwei Liu, Yingru Li, Paul Conrads
Related Content
Filter Total Items: 19
Focused fluid flow along the Nootka Fault Zone and continental slope, Explorer-Juan de Fuca plate boundary
Geophysical and geochemical data indicate there is abundant fluid expulsion in the Nootka fault zone (NFZ) between the Juan de Fuca and Explorer plates and the Nootka continental slope. Here we combine observations from > 20 years of investigations to
demonstrate the nature of fluid-flow along the NFZ, which is the seismically most active region off Vancouver Island. Seismicity reaching down to th
Authors
M. Riedel, K .M. M. Rohr, G. D. Spence, D. Kelley, J. Delaney, L. Lapham, John Pohlman, R.D. Hyndman, E.C. Willoughby
Data-driven, multi-model workflow suggests strong influence from hurricanes on the generation of turbidity currents in the Gulf of Mexico
Turbidity currents deliver sediment rapidly from the continental shelf to the slope and beyond; and can be triggered by processes such as shelf resuspension during oceanic storms; mass failure of slope deposits due to sediment- and wave-pressure loadings; and localized events that grow into sustained currents via self-amplifying ignition. Because these operate over multiple spatial and temporal sc
Authors
Courtney K. Harris, Jaia Syvitski, H.G. Arango, E. H. Meiburg, Sagy Cohen, C.J. Jenkins, Justin J. Birchler, E. W. H. Hutton, T. A. Kniskern, S. Radhakrishnan, Guillermo Auad
Sediment delivery to marsh platforms minimized by source decoupling and flux convergence
Sediment supply is a primary factor in determining marsh response to sea level rise and is typically approximated through high‐resolution measurements of suspended sediment concentrations (SSCs) from adjacent tidal channels. However, understanding sediment transport across the marsh itself remains limited by discontinuous measurements of SSC over individual tidal cycles. Here, we use an array of o
Authors
Daniel Coleman, Neil K. Ganju, Matthew Kirwan
Large-scale erosion driven by intertidal eelgrass loss in an estuarine environment
Seagrasses influence local hydrodynamics by inducing drag on the flow and dampening near-bed velocities and wave energy. When seagrasses are lost, near-bed currents and wave energy can increase, which enhances bottom shear stresses, destabilizes sediment, and promotes suspension and erosion. Though seagrasses are being lost rapidly globally, the magnitude of change in sediment stabilization follow
Authors
Ryan K. Walter, Jenifer K. O’Leary, Sean Vitousek, Mohsen Taherkhani, Carolyn Geraghty, Ann Kitajima
The importance of explicitly modelling sea-swell waves for runup on reef-lined coasts
The importance of explicitly modelling sea-swell waves for runup was examined using a 2D XBeach short wave-averaged (surfbeat, “XB-SB”) and a wave-resolving (non-hydrostatic, “XB-NH”) model of Roi-Namur Island on Kwajalein Atoll in the Republic of Marshall Islands. Field observations on water levels, wave heights, and wave runup were used to drive and evaluate both models, which were subsequently
Authors
Ellen Quataert, Curt D. Storlazzi, Ap van Dongeren, Robert T. McCall
Seismic stratigraphic framework of the continental shelf offshore Delmarva, U.S.A.: Implications for Mid-Atlantic Bight evolution since the Pliocene
Understanding how past coastal systems have evolved is critical to predicting future coastal change. Using over 12,000 trackline kilometers of recently collected, co-located multi-channel boomer, sparker and chirp seismic reflection profile data integrated with previously collected borehole and vibracore data, we define the upper (< 115 m below mean lower low water) seismic stratigraphic framework
Authors
Laura L. Brothers, David S. Foster, Elizabeth A. Pendleton, Wayne E. Baldwin
The Everglades Depth Estimation Network (EDEN) surface-water model, version 2
The Everglades Depth Estimation Network (EDEN) is an integrated network of water-level gages, interpolation models that generate daily water-level and water-depth data, and applications that compute derived hydrologic data across the freshwater part of the greater Everglades landscape. The U.S. Geological Survey Greater Everglades Priority Ecosystems Science provides support for EDEN in order for
Authors
Pamela A. Telis, Zhixiao Xie, Zhongwei Liu, Yingru Li, Paul Conrads
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