Janet M. Becker

Estimates of Extreme and Low Frequency Reef‐Flat Water Levels at Ipan, Guam From Offshore Waves

Janet M. Becker, M. A. Merrifield

Abstract Wave and water level observations collected at a shore‐attached fringing reef at Ipan, Guam are used to relate offshore wave conditions and reef water levels to extreme water levels near the shoreline (2 exceedance, ). The observations capture conditions during three …

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Data for: Spectral refraction modeling of waves around the steep reef at Palau

Mika Siegelman, William O'Reilly, Janet M. Becker, Raymond Young et autres

Western Pacific islands, such as Palau, are vulnerable to wave-driven inundation due to low land elevations and limited space for coastal retreat. Assessing the impacts of extreme wave events on these low-lying islands requires regional numerical models that account for remotely generated …

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Spectral Refraction Modeling of Waves Around the Steep Reef at Palau

Mika Siegelman, William C O'Reilly, Janet M. Becker, Raymond Young et autres

Abstract Western Pacific islands, such as Palau, are susceptible to wave‐driven inundation due to low land elevations and limited space for coastal retreat. Assessing the impacts of extreme wave events on these low‐lying islands requires regional numerical models that account for remotely …

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Computations of energetic nearshore waves: Are weakly dispersive phase-resolving models telling the same story?

Assaf Azouri, Volker Roeber, Martin Guiles, M. A. Merrifield et autres

Three phase-resolving weakly dispersive wave models are used for 2DH (2D depth-integrated) computations of large-scale wave-by-wave processes induced by highly energetic sea/swell (SS) forcing near Haleʻiwa on the North Shore of Oʻahu, Hawaiʻi. The computed model results are compared to observations obtained …

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Rising sea levels and the increase of shoreline wave energy at American Samoa

Austin T. Barnes, Janet M. Becker, Kelley A Tagarino, William C O'Reilly et autres

American Samoa is experiencing rapid relative sea level rise due to increases in global sea level and significant post-2009 earthquake land subsidence, endangering homes and critical infrastructure. Wave and water-level observations collected over a fringing reef at Faga'itua Bay, American Samoa, in …

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Rising Sea Levels and the Increase of Shoreline Wave Energy at American Samoa

Austin T. Barnes, Janet M. Becker, Kelley A Tagarino, William C O'Reilly et autres

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Rising Sea Levels and the Increase of Shoreline Wave Energy at American Samoa

Austin T. Barnes, Janet M. Becker, Kelley A Tagarino, William C O'Reilly et autres

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Contrasting Three Phase-Resolving Models for the Computation of Energetic Wave Transformations in a Complex Coastal and Harbor Environment

Assaf Azouri, Volker Roeber, Martin Guiles, M. A. Merrifield et autres

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Near-Inertial Surface Currents around Islands

Mika Siegelman, Eric Firing, M. A. Merrifield, Janet M. Becker et autres

Abstract Motivated by observations of enhanced near-inertial currents at the island chain of Palau, the modification of wind-generated near-inertial oscillations (NIOs) by the presence of an island is examined using the analytic solutions of Longuet-Higgins and a linear, inviscid, 1.5-layer reduced-gravity model. …

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Estimating runup with limited bathymetry

Athina M.Z. Lange, Julia W. Fiedler, Janet M. Becker, M. A. Merrifield et autres

Wave runup estimates are used in erosion and overtopping models, and in coastal structure design. However, runup depends on often incompletely known surf and swash bathymetry. The many existing runup parameterizations characterizing bathymetry with only the foreshore (swash zone) beach slope βf …

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WAVE-DRIVEN COASTAL DYNAMICS: CAN WE RELY ON PHASE-RESOLVING MODELS?

Assaf Azouri, Volker Roeber, Martin Guiles, Melissa Iwamoto et autres

Wave simulations from two Boussinesq-type models: BOSZ (Roeber & Cheung, 2012) and FUNWAVE (Shi et al., 2012), and a non-hydrostatic model: XBeach (Roelvink et al., 2009), are compared to observational data in a harbor and along the exposed coast of northwest O'ahu …

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The Influence of A Cross‐Reef Channel On the Wave‐Driven Setup and Circulation at Ipan, Guam

S. Jeanette Clark, Janet M. Becker, M. A. Merrifield, James Behrens

Abstract The influence of a deep (30 m), narrow (30 m) cross‐shore channel on the circulation and wave‐induced setup over a shallow (∼0.5 m) and wide (∼400 m) shore‐attached fringing reef is examined using field measurements collected at Ipan, Guam. Mean currents …

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