Conference Papers
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Hindcast of Hurricane Sally impacts on barrier islands in the Gulf of Mexico Hindcast of Hurricane Sally impacts on barrier islands in the Gulf of Mexico
We performed XBeach and ADIRC+SWAN model simulations of Hurricane Sally over Dauphin and Petit Bois Islands off the Alabama-Mississippi coast to evaluate the morphologic response. Simulated water levels compared well with NOAA tide gauge observations to the east of Dauphin Island with a high model skill of 0.9. In addition, the XBeach model results of water levels, mean current speeds...
Authors
Donya P. Frank-Gilchrist, Davina Passeri, Matthew V. Bilskie
Sediment and nutrient deposition over a reconnected floodplain during large-scale river diversions, the Bonnet Carré spillway in 2011, 2016, and 2019 Sediment and nutrient deposition over a reconnected floodplain during large-scale river diversions, the Bonnet Carré spillway in 2011, 2016, and 2019
In hopes of reversing or slowing the decline of the river delta, water diversions have been built and planned, and natural diversions have formed and been allowed to develop along the lower Mississippi River. In addition to the possibility of building land, these diversions allow for the storage of nutrients within the deposited sediments and provide a buffer from coastal storm surge...
Authors
Daniel Kroes, Gregory E. Noe, David Ramirez, Brian Vosburg
Temporal variability of runup and total water level on Cape Cod sandy beaches Temporal variability of runup and total water level on Cape Cod sandy beaches
In the present study, we evaluate the temporal variability in runup and total water level for sandy beaches along Cape Cod (Massachusetts, USA), and their impact on dune and beach erosion. We use a 43-year hindcast of waves and water levels and calculate runup and total water level based on the Stockdon formulation using previously extracted beach slopes. The dominant components of the...
Authors
Alfredo Aretxabaleta, Christopher R. Sherwood, B.O. Blanton, Jin-Si R. Over, Peter A. Traykovski, Erdinc Sogut
Fusing geophysical and remotely sensed data for observing overwash occurrence, frequency, and impact Fusing geophysical and remotely sensed data for observing overwash occurrence, frequency, and impact
Overwash is an important process that enables a barrier island to migrate landward to adapt to rising sea levels but can also impact vegetated areas and create coastal hazards for populated barrier islands. Our overall objectives were to hindcast overwash events from September 2008 to November 2009 and assess whether overwash impacts could be detected using moderate-resolution imagery...
Authors
Nicholas Enwright, P. Soupy Dalyander, Robert L Jenkins, Elizabeth S. Godsey, Spencer J. Stelly
High-pass corner frequency selection for implementation in the USGS automated ground motion processing tool High-pass corner frequency selection for implementation in the USGS automated ground motion processing tool
Earthquake ground motion processing for next-generation attenuation (NGA) projects required human inspection to select high-pass corner frequencies (fcHP), which is time-intensive and subjective. With growth in the number of recordings per event and interest in enhancing repeatability, we sought to develop automated procedures for fcHP selection. These procedures consider signal-to-noise...
Authors
María E. Ramos-Sepulveda, Grace Alexandra Parker, Eric M. Thompson, Scott J. Brandenberg, Meibai Li, Okan Ilhan, Youssef Hashash, Ellen Rathje, Jonathan P. Stewart
Invasive Round Goby in the Mohawk and Hudson Rivers: What’s the latest? Invasive Round Goby in the Mohawk and Hudson Rivers: What’s the latest?
The Round Goby (Neogobius melanostomus) is an invasive benthic fish indigenous to the Ponto-Caspian region of Eurasia. It recently colonized the Great Lakes and has expanded eastward through the New York State Canal System over the past decade. The species was first documented in the Mohawk River watershed in 2014 and was found in the Hudson River in 2021. Round Goby can adversely affect...
Authors
Scott D. George, Barry P. Baldigo, Christopher B. Rees, Meredith L. Bartron, Richard M. Pendleton, Steven Pearson