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Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The map A flowline map of glaciated Canada based on remote sensingdata presents flowlines for the former Laurentide and Cordilleran ice sheets based on flow indicators derived from aggregated, flow-parallel landforms — drumlins and crag and tails, fluting, sinuous ridges and furrows, and rises. An extensive review introduces the concepts and evolution of flowline mapping at continental-ice-sheet and regional scales, emphasizing the use of new remote sensing data. Coherent, glaciologically plausible sets of flowlines mapped as flow tracts reflect large-scale flow structure in the paleo-ice sheets and demarcate fields of flow-parallel bedforms. In addition to flow reconstruction, mapped distributions of fields of glacial terrain types — hummocky terrain, Rogen terrain, and bedrock-dominant terrain — increase our power to interpret flowlines and, in turn, give evidence on the genesis of these terrains. End moraines and eskers also aid map interpretation. Landsat 7 Enhanced Thematic Mapper+ (ETM+) satellite images and Shuttle Radar Topography Mission (SRTM) hill shades provide the basic information for this flowline mapping in a Geographical Information System (ArcMap). Information on the Flowline Map allows us to develop conceptual models of ice sheets and to appreciate regional constraints on applications in mineral exploration, in aggregate and groundwater discovery and assessment, in soil and landform genesis, and in glaciology, paleoclimatology, and paleoceanography. « La carte de l’écoulement glaciaire au Canada, tracée à partir de données de télédétection présente les directions d’écoulement des anciens inlandsis Laurentidien et de la Cordillère basées sur des indicateurs d’écoulement dérivés de formes de terrain regroupées parallèles à l’écoulement — des drumlins, des traînées morainiques à l’aval d’un nez rocheux, des rainures glaciaires, des crêtes et des sillons sinueux et des soulèvements. Une révision exhaustive présente les concepts et l’évolution de la cartographie des lignes d’écoulement à l’échelle régionale et des inlandsis continentaux, mettant l’accent sur l’utilisation des nouvelles données de télédétection. Des ensembles cohérents, et plausibles d’un point de vue de la glaciologie, de lignes d’écoulement cartographiés en tant qu’étendues d’écoulement reflètent une structure d’écoulement à grande échelle dans les paléo-inlandsis et ils délimitent des champs de morphologie de fond parallèles à l’écoulement. En plus de la reconstruction de l’écoulement, des distributions cartographiées de champs de types de terrains glaciaires — terrain en bosses et creux, terrain de Rogen et un terrain dominé par le roc du socle — rehaussent notre capacité d’interprétation les lignes d’écoulement et, donc, de fournir des évidences de la genèse de ces terrains. Les moraines frontales et les eskers peuvent aussi aider à interpréter les cartes. Les images satellites Landsat 7 Enhanced Thematic Mapper+ (ETM+) et le relief ombragé fourni par la Shuttle Radar Topography Mission fournissent l’information de base pour cette cartographie des lignes d’écoulement dans un système d’information géographique (ArcMap). L’information contenue dans la carte d’écoulement nous permet de développer des modèles conceptuels des inlandsis et d’appliquer des limites régionales sur les applications en exploration minérale pour la découverte et l’évaluation de l’eau souterraine et des agrégats, dans la genèse des sols et des formes de terrain ainsi qu’en glaciologie, en paléoclimatologie et en paléo-océanographie. [ABSTRACT FROM AUTHOR]

Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)