Volume 12, issue 1 | Copyright

Special issue: Freshwater ecosystems in changing permafrost landscapes

Biogeosciences, 12, 29-47, 2015
https://doi.org/10.5194/bg-12-29-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 06 Jan 2015

Research article | 06 Jan 2015

Distribution and biophysical processes of beaded streams in Arctic permafrost landscapes

C. D. Arp et al.
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Cited articles
Armstrong, J. B., Schindler, D. E., Ruff, C. P., Brooks, G. T., Bentley, K. E., and Torgersen, C. E.: Diel horizontal migration in streams: Juvenile fish exploit spatial heterogeneity in thermal and trophic resources, Ecology, 94, 2066–2075, https://doi.org/10.1890/12-1200.1, 2013.
Arp, C. D., Schmidt, J. C., Baker, M. A., and Myers, A. K.: Stream geomorphology in a mountain lake district: hydraulic geometry, sediment sources and sinks, and downstream lake effects, Earth Surf. Proc. Land., 32, 525–543, https://doi.org/10.1002/Esp.1421, 2007.
Arp, C., Jones, B., Beck, R., Whitman, M., Derry, J., Lilly, M., and Grosse, G.: Variation in snow-water equivalent (SWE) among tundra, lakes, and streams on the Alaskan Arctic Coastal Plain: implications for regional SWE estimates and ice-thickness, Annual Conference of the American Water Resources Association, Phillidelphia, PA, November 2, 28, 2010.
Arp, C. D., Jones, B. M., Lu, Z., and Whitman, M. S.: Shifting balance of lake ice regimes on the Arctic Coastal Plain of northern Alaska, Geophys. Res. Lett., 39, 1–5, 2012a.
Arp, C. D., Whitman, M. S., Jones, B. M., Kemnitz, R., Grosse, G., and Urban, F. E.: Drainage network structure and hydrologic behavior of three lake-rich watersheds on the Arctic Coastal Plain, Alaska, Arct. Antarct. Alp. Res., 44, 385–398, 2012b.
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Short summary
Beaded streams have deep elliptical pools connected by narrow runs that we show are common landforms in the continuous permafrost zone. These fluvial systems often initiate from lakes and occur predictably in headwater portions of moderately sloping watersheds. Snow capture along stream courses reduces ice thickness allowing thawed sediment to persist under most pools. Interpool thermal variability and hydrologic regimes provide important aquatic habitat and connectivity in Arctic landscapes.
Beaded streams have deep elliptical pools connected by narrow runs that we show are common...
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