Preprints
https://doi.org/10.5194/wes-2024-157
https://doi.org/10.5194/wes-2024-157
25 Nov 2024
 | 25 Nov 2024
Status: this preprint is currently under review for the journal WES.

Identification of Natural and Anthropogenic Hazards within Mid-Atlantic Bight For The Purpose of Offshore Wind Turbine Foundation Recommendations

Ophelia Persephone Christoph and John Madsen

Abstract. The development of offshore wind energy in the Mid-Atlantic Bight is significantly influenced by the complex interplay of seabed topography, sediment characteristics, and human-made hazards. Utilizing seismic profiles and existing geological studies, this paper investigates the unique geological features and sediment types present in the region. These features include paleochannels, sand ridges, and varying sediment compositions, all of which have critical implications for the siting and emplacement of wind turbine foundations. The documented sediment types range from fine clays to coarser sands. Specific attention is given to glauconite sands in this research due to the unique challenges of their thixotropic behavior and potential to compromise pile capacity during installation.

In addition to natural geological factors, human-made hazards—including unexploded ordnances (UXOs), shipwrecks, and artificial reefs, are barriers to offshore wind development. The presence of these hazards necessitates careful planning and may limit available space for turbine placement. Our findings emphasize the need for enhanced geotechnical assessments and innovative foundation solutions tailored to the unique characteristics of the seabed. Regulatory frameworks that adapt to evolving understandings of seabed conditions and hazard mitigation strategies are needed to ensure the safe and efficient installation of offshore wind turbines. Ultimately, a comprehensive understanding of both natural and human-made hazards is crucial for the successful development of offshore wind projects in the Mid-Atlantic Bight to balance the economic and energy benefits against the complexities of the marine environment.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Ophelia Persephone Christoph and John Madsen

Status: open (until 30 Dec 2024)

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Ophelia Persephone Christoph and John Madsen
Ophelia Persephone Christoph and John Madsen

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Short summary
The paper explores the critical factors affecting offshore wind development in the Mid-Atlantic Bight Central Atlantic Call Area, focusing on the natural and human-made hazards. By analyzing geological studies, it identifies significant geological elements like paleochannels, sand ridges, and sediment variability, emphasizing the challenges posed by sediment type that impacts foundation stability.
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