TY - JOUR AU1 - Gonsior, M. AU2 - Schmitt-Kopplin, P. AU3 - Bastviken, D. AU4 - AB - Open Access Biogeosciences, 10, 6945–6956, 2013 www.biogeosciences.net/10/6945/2013/ Biogeosciences doi:10.5194/bg-10-6945-2013 © Author(s) 2013. CC Attribution 3.0 License. Depth-dependent molecular composition and photo-reactivity of dissolved organic matter in a boreal lake under winter and summer conditions 1, 2 3, 4 2 M. Gonsior , P. Schmitt-Kopplin , and D. Bastviken University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, USA Linköping University, Department of Thematic Studies, Unit Water and Environment, Linköping, Sweden Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg, Germany Department for Chemical-Technical Analysis, Research Center Weihenstephan for Brewing and Food Quality, Technische Universität München, 85354 Freising-Weihenstephan, Germany Correspondence to: M. Gonsior (gonsior@umces.edu) Received: 15 April 2013 – Published in Biogeosciences Discuss.: 29 May 2013 Revised: 23 September 2013 – Accepted: 2 October 2013 – Published: 4 November 2013 Abstract. Transformations of dissolved organic matter tion of DOM between surface and deep boreal lake waters. (DOM) in boreal lakes lead to large greenhouse gas emis- The release of DOC from boreal lake sediments also con- sions as well as substantial carbon storage in sediments. Us- tribute to this pattern. Photochemical degradation of DOM ing novel molecular characterization approaches and photo- may be more extensive following TI - Depth-dependent molecular composition and photo-reactivity of dissolved organic matter in a boreal lake under winter and summer conditions JF - Biogeosciences DO - 10.5194/bg-10-6945-2013 DA - 2013-11-04 UR - https://www.deepdyve.com/lp/unpaywall/depth-dependent-molecular-composition-and-photo-reactivity-of-b4IetGXZwy DP - DeepDyve ER -