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<p>Accurate mapping of inland waters is essential for managing freshwater resources. This mapping is usually undertaken using single beam echosounder, which provides interpolated low-resolution bathymetric maps. Over the past decade, high-resolution swath bathymetry was acquired for nine fjord-type lakes in Québec and Labrador (eastern Canada) using a multibeam echosounder or an interferometric sonar. Together, these lakes represent more than 46,000 million m<sup>3</sup> of freshwater. The dataset includes seven lakes from the Canadian Shield (Mékinac, Jacques-Cartier, Pasteur, Pentecôte, Walker, Manicouagan in Québec, and Grand Lake in coastal Labrador) and two from the Appalachian Mountains in southeastern Québec (Pohénégamook and Témiscouata). Swath bathymetric data of these large waterbodies provides a baseline for scientific research and ongoing conservation efforts.</p>

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Swath bathymetry imagery of fjord-lakes from Québec-Labrador, eastern Canada

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月11日

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  • Léo Chassiot,
  • Patrick Lajeunesse,
  • Alexandre Normandeau,
  • Gabriel Joyal,
  • Annie-Pier Trottier,
  • Antoine Gagnon-Poiré,
  • Geneviève Philibert,
  • Jean-François Bernier,
  • Pierre-Olivier Couette,
  • François-Xavier L’Heureux-Houde,
  • Etienne Brouard,
  • Bryan Sinkunas,
  • Antoine Morissette,
  • Ariane Frigon

摘要

Accurate mapping of inland waters is essential for managing freshwater resources. This mapping is usually undertaken using single beam echosounder, which provides interpolated low-resolution bathymetric maps. Over the past decade, high-resolution swath bathymetry was acquired for nine fjord-type lakes in Québec and Labrador (eastern Canada) using a multibeam echosounder or an interferometric sonar. Together, these lakes represent more than 46,000 million m3 of freshwater. The dataset includes seven lakes from the Canadian Shield (Mékinac, Jacques-Cartier, Pasteur, Pentecôte, Walker, Manicouagan in Québec, and Grand Lake in coastal Labrador) and two from the Appalachian Mountains in southeastern Québec (Pohénégamook and Témiscouata). Swath bathymetric data of these large waterbodies provides a baseline for scientific research and ongoing conservation efforts.