Stream biogeochemical and suspended sediment responses to permafrost degradation in stream banks in Taylor Valley, Antarctica

• Main Authors: Gooseff, Michael N., Van Horn, David, Sudman, Zachary, McKnight, Diane M., Welch, Kathleene A., Lyons, William B.
• Format: Text
• Language: unknown
• Published: CU Scholar 2016
• Subjects: glacial meltwater streams; impact; geosciences; multidisciplinary; canada; dissolved organic-carbon; mackenzie delta region; water chemistry; transient storage; hyporheic exchange; mcmurdo dry valleys; McMurdo Dry Valleys; Canada; Mackenzie Delta; Taylor Valley; Crescent Stream; Antarc*; Antarctica; permafrost; Thermokarst
• Online Access: https://scholar.colorado.edu/cven_facpapers/5; https://scholar.colorado.edu/cgi/viewcontent.cgi?article=1002&context=cven_facpapers

Stream channels in the McMurdo Dry Valleys are characteristically wide, incised, and stable. At typical flows, streams occupy a fraction of the oversized channels, providing habitat for algal mats. In January 2012, we discovered substantial channel erosion and subsurface thermomechanical erosion und...