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Earth System Dynamics An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/esdd-3-235-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esdd-3-235-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

  04 Apr 2012

04 Apr 2012

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This preprint was under review for the journal ESD but the revision was not accepted.

Mathematical modelling of positive carbon-climate feedback: permafrost lake methane emission case

I. A. Sudakov1 and S. A. Vakulenko2 I. A. Sudakov and S. A. Vakulenko
  • 1St. Petersburg State University of Technology and Design, Mathematics and Informatics Department, St. Petersburg, Russia
  • 2Institute for Mechanical Engineering Problems, Russian Academy of Sciences, St. Petersburg, Russia

Abstract. The permafrost methane emission problem is in the focus of attention of different climate models. We present new approach to the permafrost methane emission modeling. The tundra permafrost lakes is potential source of methane emission. Typically, tundra landscape contains a number of small lakes and warming leads to lake extension. We are making use of this process by the nonlinear theory of phase transitions. We find that climate catastrophe possibility depends on a feedback coefficient connecting the methane concentration in atmosphere and temperature, and on the tundra permafrost methane pool.

I. A. Sudakov and S. A. Vakulenko

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I. A. Sudakov and S. A. Vakulenko

I. A. Sudakov and S. A. Vakulenko

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