Articles | Volume 11, issue 6
Model description paper
04 Jun 2018
Model description paper |  | 04 Jun 2018

Soil Methanotrophy Model (MeMo v1.0): a process-based model to quantify global uptake of atmospheric methane by soil

Fabiola Murguia-Flores, Sandra Arndt, Anita L. Ganesan, Guillermo Murray-Tortarolo, and Edward R. C. Hornibrook

Data sets

Updated high-resolution grids of monthly climatic observations – the CRU TS3.10 Dataset ( I. Harris, P. D. Jones, T. J. Osborn, and D. H. Lister

Estimating historical changes in global land cover: Croplands from 1700 to 1992 ( N. Ramankutty and J. A. Foley

The International Soil Moisture Network: a data hosting facility for global in situ soil moisture measurements ( W. A. Dorigo, W. Wagner, R. Hohensinn, S. Hahn, C. Paulik, A. Xaver, A. Gruber, M. Drusch, S. Mecklenburg, P. van Oevelen, A. Robock, and T. Jackson, T.

Recent trends and drivers of regional sources and sinks of carbon dioxide ( S. Sitch et al.

Multi-model mean nitrogen and sulfur deposition from the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): evaluation of historical and projected future changes ( J.-F. Lamarque et al.

Reconstruction of spatially detailed global map of NH4+ and NO3− application in synthetic nitrogen fertilizer K. Nishina, A. Ito, N. Hanasaki, and S. Hayashi

A global soil data set for earth system modelling W. Shangguan, Y. Dai, Q. Duan, B. Liu, and H. Yuan


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Short summary
Soil bacteria known as methanotrophs are the only biological sink for atmospheric methane (CH4). Their activity depends on climatic and edaphic conditions, thus varies spatially and temporarily. Based on this, we developed a model (MeMo v1.0) to assess the global CH4 consumption by soils. The global CH4 uptake was 33.5 Tg CH4 yr-1 for 1990–2009, with an increasing trend of 0.1 Tg CH4 yr-2. The regional analysis proved that warm and semiarid regions represent the most efficient CH4 sink.