Bylot Island ponds on a wet year |
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| Latitude : | 73.158 | |
| Longitude : | -79.981 | |
| Altitude (m) : |
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Sirmilik Park, Nunavut
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The studied ponds are located in a glacier valley of Sirmilik National Park on Bylot Island, Nunavut, Canada (73°N, 80°W), in a region of continuous syngenetic permafrost cryoturbated by the formation and decay of ice wedges.
The four sampled ponds (very close to each other) are characterized by a shallow depths (~0.2-1m), a small area (33 et 428 m2), and a variable mixing regime: 1- coalescent pond BYL1 is constantly mixed, 2- polygonal pond BYL22 is very shallow with probably a well-mixed water column and exposed to very high solar radiation, 3- ice-wedge trough pond BYL24, stratified, with previously eroded shores and now colonized by vegetation, et 4- la mare en coin de glace BYL38, très stratifiée, dont les rives sont exposées à une forte érosion.
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