Title Methane emission from Siberian wet polygonal tundra on multiple spatial scales; process-based modeling of methane fluxes on the regional scale, Lena Delta
Author Kirschke, S.; Guenther, K.P.; Wisskirchen, K.; Sachs, T.; Dech, S.
Author Affil Kirschke, S., German Remote Sensing Data Center, German Aerospace Center, Wessling, Federal Republic of Germany. Other: Alfred Wegener Institute for Polar and Marine Research, Federal Republic of Germany
Source International Conference on Permafrost (ICOP) Proceedings, Vol.9, p.947-952, ; Ninth international conference on Permafrost, Fairbanks, AK, June 29-July 3, 2008, edited by D.L. Kane and K.M. Hinkel. Publisher: [publisher varies], [location varies], International
Publication Date 2008
Notes In English. 31 refs. CRREL Acc. No: 62006088
Index Terms climate; climatic change; deltas; ecology; global change; global warming; hydrocarbons; models; permafrost; pollution; remote sensing; tundra; Russia--Lena River; Asia--Siberia; air pollution; aliphatic hydrocarbons; alkanes; Asia; carbon; climate change; Commonwealth of Independent States; emissivity; International Polar Year 2007-08; IPY 2007-08 Research Publications; Lena Delta; Lena River; methane; organic compounds; Russian Federation; satellite methods; Siberia; Yakutia Russian Federation
Abstract Uncertainties in the carbon budget of high latitude ecosystems are partly due to difficulties in assessing the spatially and temporally highly variable methane emissions of permafrost soils. CH4 contributes significantly to global warming. Arctic regions are most critically influenced by a changing climate. Modeling approaches are important tools to determine CH4 fluxes of arctic environments. We present two process- based models to calculate methane emission from permafrost soils. Model forcing consists of ECMWF (European Center for Medium-Range Weather Forecasts) meteorological data which are validated against field measurements. Auxiliary input data is derived from satellite imagery and field measurements. A MERIS-FR land classification scheme is used to upscale emissions. Model results are validated using methane flux measurements on the landscape and small scale carried out in 2006 in the Lena Delta (72N, 126E) by Alfred Wegener Institute for Polar and Marine Research. The study site is characterized by arctic tundra ecosystems and continuous permafrost.
Publication Type conference paper or compendium article
Record ID 286151