Supplement to: Hugelius, Gustaf; Virtanen, Tarmo A; Kaverin, Dmitry; Pastukhov, Alexander; Rivkin, Felix; Marchenko, Sergey; Romanovsky, Vladimir E; Kuhry, Peter (2011): High-resolution mapping of ecosystem carbon storage and potential effects of permafrost thaw in periglacial terrain, European Russian Arctic. Journal of Geophysical Research, 116(G3), G03024, https://doi.org/10.1029/2010JG001606