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Proceedings Paper

Methane emission from Western Siberia’s wetland ecosystems in the first half of the XXI century
Author(s): Konstantin M. Makushev; Anatoly A. Lagutin; Nikolay V. Volkov; Egor Yu. Mordvin
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Paper Abstract

Interannual variability of methane (CH4) emission from wetland ecosystems of Western Siberia in 2000-2050 has been investigated. Calculations of CH4 emission were performed using an approach, in which the total daily methane flux was determined by degree days of the soil and its moisture content as well as available supply of organic substance. Required characteristics of the soil were obtained using the Community Land Model (CLM4.5), coupled with the Regional Climate Model (RegCM4). The model was driven by the data of NCEP-DOE Atmospheric Model Intercomparison Project reanalysis (NCEP-DOE AMIP-II (R2)) and Hadley Global Environment Model 2 - Earth System (HadGEM2- ES) within the Representative Concentration Pathway 4.5 (RCP 4.5) and RCP 8.5 radiative forcing scenarios as initial and lateral boundary conditions. It was found that the average value of the emission in 2000-2013 is 4.34 Tg/yr. Expected increase of methane emission in 2041-2050 relative to the 2001-2010 period is 0.58 Tg/yr with 0.18±0.06 Tg/10 yrs trend for the RCP 8.5 scenario. For the scenario RCP 4.5, increase of methane emission is negligible.

Paper Details

Date Published: 29 November 2016
PDF: 7 pages
Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1003565 (29 November 2016); doi: 10.1117/12.2248894
Show Author Affiliations
Konstantin M. Makushev, Altai State Univ. (Russian Federation)
Anatoly A. Lagutin, Altai State Univ. (Russian Federation)
Nikolay V. Volkov, Altai State Univ. (Russian Federation)
Egor Yu. Mordvin, Altai State Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 10035:
22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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