Articles | Volume 13, issue 1
Biogeosciences, 13, 27–44, 2016

Special issue: Freshwater ecosystems in changing permafrost landscapes

Biogeosciences, 13, 27–44, 2016
Research article
14 Jan 2016
Research article | 14 Jan 2016

Detection and spatiotemporal analysis of methane ebullition on thermokarst lake ice using high-resolution optical aerial imagery

P. R. Lindgren et al.

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Cited articles

Baddeley, A. and Turner, R.: Spatstat: An R package for analyzing spatial point patterns, J. Stat. Softw., 12, 1–42, (last access: August 2014), ISSN: 1548–7660, 2005.
Bastviken, D.: Methane emissions from lakes: Dependence of lake characteristics, two regional assessments, and a global estimate, Global Biogeochem. Cy., 18, 1–12,, 2004.
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Blaschke, T. and Strobl, J.: What's wrong with pixels? Some recent developments interfacing remote sensing and GIS, GIS – Zeitschrift für Geoinformationssysteme, 14, 12–17, 2001.
Short summary
We mapped and characterized methane ebullition bubbles trapped in lake ice, and estimated whole-lake methane emission using high-resolution aerial images of a lake acquired following freeze-up. We identified the location and relative sizes of high- and low-flux seepage zones within the lake. A large number of seeps showed spatiotemporal stability over our study period. Our approach is applicable to other regions to improve the estimation of methane emission from lakes at the regional scale.
Final-revised paper