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

• Published in: Biogeosciences
• Main Authors: Gooseff, Michael N., Van Horn, David, Sudman, Zachary, McKnight, Diane M., Welch, Kathleene A., Lyons, William B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2016
• Subjects: article; Verlagsveröffentlichung; Crescent Stream; McMurdo Dry Valleys; Taylor Valley; Antarc*; Antarctica; permafrost; Thermokarst
• Online Access: https://doi.org/10.5194/bg-13-1723-2016; https://noa.gwlb.de/receive/cop_mods_00013777; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013733/bg-13-1723-2016.pdf; https://bg.copernicus.org/articles/13/1723/2016/bg-13-1723-2016.pdf

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...