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Abstract <p>The paper discusses the progress in modeling the dynamics of the land and ocean carbon cycles in the INM RAS Earth system model INM-CM6. To describe the terrestrial carbon cycle, an approximation of three pools (plant, soil, and anthropogenic litter ones) is used. These pools interact with each other and the atmosphere through biogeochemical processes. The current version of the model also includes the effects of land use and harvesting. The ocean carbon cycle is described by a production/destruction model, taking into account limitation by nitrogen and phosphorus compounds. Using the quasi-equilibrium assumption, the transfer of matter down the water column with gravitational sedimentation of organic remains is explicitly described. The dynamics of global carbon stocks in terrestrial and oceanic ecosystems in modern climate modeling experiments are consistent with observations as well as with results of other models in the CMIP6 ensemble.</p>

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Simulation of the Land and Ocean Carbon Cycle with the INM-CM6 Earth System Model

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月1日

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  • A. Yu. Chernenkov,
  • I. A. Chernov,
  • D. V. Blagodatskikh,
  • E. M. Volodin,
  • A. S. Gritsun,
  • A. S. Ivanova,
  • V. A. Onoprienko,
  • M. A. Tarasevich,
  • A. V. Tolstikov,
  • N. G. Iakovlev

摘要

Abstract

The paper discusses the progress in modeling the dynamics of the land and ocean carbon cycles in the INM RAS Earth system model INM-CM6. To describe the terrestrial carbon cycle, an approximation of three pools (plant, soil, and anthropogenic litter ones) is used. These pools interact with each other and the atmosphere through biogeochemical processes. The current version of the model also includes the effects of land use and harvesting. The ocean carbon cycle is described by a production/destruction model, taking into account limitation by nitrogen and phosphorus compounds. Using the quasi-equilibrium assumption, the transfer of matter down the water column with gravitational sedimentation of organic remains is explicitly described. The dynamics of global carbon stocks in terrestrial and oceanic ecosystems in modern climate modeling experiments are consistent with observations as well as with results of other models in the CMIP6 ensemble.