| Titre | Offshore wind energy in Atlantic Canada - comparing the inner shelf geology with that of the north sea and United States Atlantic coast |
| |
| Auteur | Eamer, J B R ;
Shaw, J; King, E L; MacKillop, K; Kostylev, V |
| Source | GSA 2020 Connects Online; Geological Society of America, Abstracts With Programs vol. 52, no. 6, 131-9, 2020 p. 1, https://doi.org/10.1130/abs/2020AM-357264 |
| Image |  |
| Année | 2020 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20200505 |
| Éditeur | Geological Society of America |
| Réunion | GSA Connects 2020; Octobre 26-30, 2020 |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1130/abs/2020AM-357264 |
| Media | papier; en ligne; numérique |
| Formats | html; pdf |
| Région | Océan Atlantique |
| Sujets | milieu côtièr; Énergie éolienne; effets cumulatifs; Sciences et technologie; Nature et environnement |
| Programme | Géosciences marines pour la planification spatiale marine |
| Diffusé | 2020 10 28 |
| Résumé | (disponible en anglais seulement)
The Quaternary history of the Atlantic Canadian inner shelf shares some similarities with the North Sea and northern United States of America (US) Atlantic
coast, with the influence of large scale glaciation and subsequent sea level transgression being the main drivers of seafloor morphology, sedimentology, and uppermost stratigraphy. The geology of the inner shelf is an important constraint on the
development of offshore renewables, in particular wind energy. Offshore wind has seen rapid growth, particularly in Europe and Asia, where the industry has now experienced decades of production. In the US, one small-scale production farm and many
hundreds of MW are in the production pipeline. In contrast, offshore wind in Canada is limited to one Pacific project in permitting and no plans for development in the wind resource-rich Atlantic Canadian region. In this study, the geological
constraints on offshore wind in Atlantic Canada are explored. Generally, the available offshore wind resource is high, and thus the main geophysical constraint on the development of offshore wind energy converters is the inner shelf geology. Several
sites with available high-resolution geophysical data are selected for in-depth analysis and comparison with production and planned offshore wind farm sites found elsewhere. In general, a lack of sufficiently thick Quaternary sedimentation -
necessary for the most common bottom-fixed foundations for wind turbines - will make developing offshore wind in Atlantic Canada challenging when compared with North Sea and US Atlantic Coast locations. A few locations may be suitable geologically,
such as Sable Island Bank in Nova Scotia (thick package of sands), Northumberland Strait between Prince Edward Island and Nova Scotia (shallow firm seabed and sandbanks), Baie des Chaleurs in New Brunswick/Québec (thick, low relief fine sediments),
and St. George's Bay, Newfoundland (shallow, postglacially modified moraine). |
| Sommaire | (Résumé en langage clair et simple, non publié)
La géologie du plateau continental intérieur est une contrainte importante pour le développement des énergies renouvelables en mer, en
particulier l'énergie éolienne. À ce jour, une grande partie des installations se trouvent en mer du Nord, et plusieurs grands projets sont en cours au large de la côte atlantique des États-Unis. Cette étude cherche à capitaliser les données publiées
et publiques sur la géologie des installations éoliennes offshore existantes et prévues afin de comparer les conditions des fondations - sédiments de surface, géomorphologie et géologie souterraine - avec celles du plateau continental intérieur du
Canada atlantique. Cela permet d'obtenir une première évaluation du potentiel géologique du plateau intérieur du Canada atlantique pour accueillir des installations éoliennes en mer. |
| GEOSCAN ID | 327416 |
|
|