A5038742770- Underwater Acoustics Research
- Coastal and Marine Dynamics
- Geophysical Methods and Applications
- Methane Hydrates and Related Phenomena
- Marine animal studies overview
- Coastal wetland ecosystem dynamics
- Arctic and Antarctic ice dynamics
- Aeolian processes and effects
- Geological Studies and Exploration
- Climate change and permafrost
Virginia Tech
2021-2025
ORCID
2024
Geotechnical sediment properties, morphological change, and hydrodynamics were measured as part of the During Nearshore Event Experiment (DUNEX) in October 2021 at sandy Atlantic side beach Duck, North Carolina. In this study, direct relationships explored between situ soil properties erodibility measurements context change. Moisture content, grain size, total density, relative void ratio, strength compared to bed-level change using ground-based LiDAR parameters from laboratory jet erosion...
Geotechnical properties of surficial beach sediments affect erosion and shoreline changes. This study sets out to measure relative density, moisture content, friction angle, shear strength sandy surface from dune swash zone towards the goal assessing their importance in morphodynamics. Methods sediment sampling, a conductivity based probe, field penetrometers, vane were deployed collect data at Atlantic-side Duck, North Carolina. The tools used assessed on operability environment quality,...
Geotechnical data are increasingly utilized to aid investigations of coastal erosion and the development morphological models; however, measurement techniques still challenged by environmental conditions accessibility in areas, particularly, nearshore conditions. These challenges exacerbated for Arctic environments. This article reviews existing emerging collection methods context geotechnical change. Specifically, use cone penetration testing (CPT), which can provide key mapping soil ice...
Geotechnical site characterization of energetic beach and nearshore environments is generally challenging due to harsh environmental conditions. In addition, few methods sensors have been developed, tested, and/or validated for these Advances in remote sensing provide new pathways data collection without physical presence surveyors with greater spatial coverage a shorter period time. This article presents initial lessons learned from testing satellite-sensed data, rapid tools, buried...
Seabed variability introduced by physical or biogenic processes contributes to multi-scale horizontal and vertical in seabed acoustic geotechnical properties. An experiment was conducted near the mouth of Mobile Bay investigate such spatial over a mud-sand gradient. A normal-incidence bottom loss survey on 750 × 1500 m2 grid with 50-m track-line spacing, which broadband source transmitted frequency-modulated chirps (1–100 kHz) every second, resulting dense sampling reflection coefficient...
Nearshore and estuarine sediments experience varying sediment inputs that create sharp gradients in properties over fairly small vertical horizontal distances. In this study, we explored the sand-mud transition cores collected from Mobile Bay, AL, with acoustic geotechnical approaches. A custom built instrument was used to measure depth profiles of tensile strength at cm-scale resolution. These measurements were compared sound speed attenuation across a range frequencies. Cores exhibited...