10.6084/m9.figshare.5786793.v1 Emma Ciric Emma Ciric Pascale Roy-léveillée Pascale Roy-léveillée Beaded streams: A case study in the Blackstone Uplands, Yukon Canada. figshare 2018 Beaded stream permafrost thermokarst development drainage tundra peatlands Yukon Territory Blackstone Uplands Physical Geography Environmental Science Geomorphology and Regolith and Landscape Evolution 2018-01-14 05:19:58 Poster https://figshare.com/articles/poster/Beaded_streams_A_case_study_in_the_Blackstone_Uplands_Yukon_Canada_/5786793 <div><b>Ciric, E</b>, Roy-Leveillee, P (2017) Beaded Streams: A case study in the Blackstone Uplands, Yukon, Canada. Canadian Association of Geographers 2017: Towards a Just and Sustainable World, May 29-June2, 2017, Toronto, ON.<br></div><div><br></div><div><br></div><div>Abstract:</div><div>Beaded streams are a type of thermokarst expression resulting from ice wedge degradation found on gently</div><div>sloping terrain. They have been studied in Arctic ecosystems underlain by continuous permafrost. This research</div><div>examined beaded streams in the Blackstone Uplands (YT), a sub-arctic tundra landscape of the discontinuous</div><div>permafrost zone. Analysis of beaded streams on satellite imagery and aerial photography taken in the 1950s</div><div>indicated that beaded stream development is closely linked to the degradation of ice wedge polygon networks,</div><div>and results in can result in pronounced changes in vegetation cover as beaded streams mature. In July 2016, a</div><div>beaded stream from this study area was visited in the field to determine its depth as well as physical observations.</div>