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Methane Emission from Siberian Wet Polygonal Tundra on Multiple Spatial Scales: Process-based Modelling of Methane Fluxes on the Regional Scale, Lena Delta.

Kirschke, Stefanie and Günther, Kurt P. and Wißkirchen, Klaus and Sachs, Thorsten and Dech, Stefan (2008) Methane Emission from Siberian Wet Polygonal Tundra on Multiple Spatial Scales: Process-based Modelling of Methane Fluxes on the Regional Scale, Lena Delta. NINTH INTERNATIONAL CONFERENCE ON PERMAFROST, Vol. 1. Institute of Northern Alaska, University of Alaska. ISBN 978-0-9800179-2-2 (v.1).

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Official URL: http://www.blue-europa.org/nicop_proceedings/4%20Vol%201%20(753-xl).pdf

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 (72°N, 126°E) by Alfred Wegener Institute for Polar and Marine Research. The study site is characterized by arctic tundra ecosystems and continuous permafrost.

Document Type:Proceedings
Title:Methane Emission from Siberian Wet Polygonal Tundra on Multiple Spatial Scales: Process-based Modelling of Methane Fluxes on the Regional Scale, Lena Delta.
Authors:
AuthorsInstitution or Email of Authors
Kirschke, StefanieUNSPECIFIED
Günther, Kurt P.kurt.guenther@dlr.de
Wißkirchen, KlausUNSPECIFIED
Sachs, ThorstenUNSPECIFIED
Dech, StefanUNSPECIFIED
Date:2008
Volume:Vol. 1
Number of Pages:5
Editors:
EditorsEmail
Kane, Douglas L.UNSPECIFIED
Hinkel, Kenneth M.UNSPECIFIED
Publisher:Institute of Northern Alaska, University of Alaska
Series Name:NINTH INTERNATIONAL CONFERENCE ON PERMAFROST
ISBN:978-0-9800179-2-2 (v.1)
Status:Published
Keywords:Arctic; climate change; methane emissions; modeling; permafrost; tundra
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Climate and Atmospheric Products
Deposited By: Dr.rer.nat. Kurt Günther
Deposited On:21 Jul 2009 09:16
Last Modified:12 Dec 2013 20:39

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