Name: Submarine Canyons

Display Field: Geomorphic

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Description: Submarine canyons are diverse and complex in terms of their origins, hydrography, geologic settings and biodiversity. The combination of steep rocky slopes, strong currents and enhanced access to food makes submarine canyons places of ecological significance. <br/> <br/> Global submarine canyon data are derived from <a href=" https://www.sciencedirect.com/science/article/abs/pii/S0025322714000310"target="_blank"> Geomorphology of the Oceans</a> by Harris, Macmillan-Lawler, Rupp, and Baker. In this study, submarine canyons are defined as “steep-walled, sinuous valleys with V-shaped cross sections, axes sloping outward as continuously as river-cut land canyons and relief comparable to even the largest of land canyons” (Shepard, 1963). “Large” canyons were mapped in this study based on the definition of Harris and Whiteway (2011), which requires canyons to extend over a depth range of at least 1,000 m and to be incised at least 100 m into the slope at some point along their lowest elevation.<br/>

Definition Expression: N/A

Copyright Text: GRID-Arendal, Geoscience Australia, Conservation International

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Spatial Reference: 102100  (3857)

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Label: Submarine Canyons
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• Shape ( type: esriFieldTypeGeometry , alias: Shape )
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