177th meeting of the seminar
«Mathematical modeling of geophysical processes: direct and inverse problems»
The seminar is devoted to the consideration of various aspects of mathematical modeling of physical processes in the atmosphere, hydrosphere and active layer of land, associated with solving problems arising in the study of the problems of climate change and the natural environment.
Seminar Organizing Committee
| Leaders: |
Doctor of Physics and Mathematics A.V. Glazunov (Marchuk Institute of Numerical Mathematics of RAS) Doctor of Physics and Mathematics I.A. Repina (A.M. Obukhov Institute of Atmospheric Physics of RA) Doctor of Physics and Mathematics V.M. Stepanenko (RCC MSU, Geographical Faculty of Moscow State University) |
| Secretary: |
Yu.I. Yarynich (RCC MSU, A.M. Obukhov Institute of Atmospheric Physics of RAS). |
PROGRAM
17:15
| V.N. Shanin | IPCBS RAS |
| P.V. Frolov | IPCBS RAS |
| I.V. Priputina | IPCBS RAS |
| O.G. Chertov | IPCBS RAS |
| S.S. Bykhovets | IPCBS RAS |
| E.V. Zubkova | IPCBS RAS |
| P.Ya. Grabarnik | IPCBS RAS |
EFIMOD3 forest ecosystem models system
Modern forest ecology requires an analysis of the coupled dynamics of processes occurring at different spatiotemporal scales, including the functioning of plant communities and soils, interacting under the influence of all edaphic and anthropogenic factors. Mathematical models are an effective tool for such analysis. This paper presents the implementation of a new spatially detailed process-based model system, EFIMOD3, which allows for the reproduction in simulation experiments of the spatial structure of forest phytocenoses formed by the tree and herb-dwarf shrub layers, as well as the associated heterogeneity of soil conditions and the diversity of ecological niches at different hierarchical levels. The model system includes modules simulating microrelief, competition between trees for light and soil resources, taking into account the asymmetry of crowns and root systems and the spatial heterogeneity of the biotic and abiotic environment, an ecophysiological submodel of forest vegetation biomass production, and modules simulating hydrothermal conditions and soil organic matter dynamics. Literature and our own experimental data were used to parameterize and validate EFIMOD3. Simulation experiments demonstrated the model system's ability to reproduce forest ecosystem dynamics, taking into account the species and spatial structure of different vegetation layers and the associated mosaic nature of soil conditions. The wide range of interconnected ecosystem characteristics implemented in EFIMOD3 makes it possible to simulate productivity assessments, C and N nutrient cycling, and vegetation population dynamics in forest ecosystems, taking into account their characteristic multiscale spatial structure. This allows for a better understanding of ecosystem processes and their contribution to maintaining sustainable forest function, which can be used for predictive assessments of forest management efficiency and other forestry and environmental problems.
The seminar also will be held in the form of a webinar on the Zoom platform.
Topic: семинар "Математическое моделирование геофизических процессов: прямые и обратные задачи".
Time: Nov 20, 2025 05:15 PM Moscow (GMT+3)
Video recordings of the seminar are available on our youtube channel.
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For communication on all issues related to the work of the seminar, please contact the academic secretary Yuliya Yarynich at julia.yarinich@srcc.msu.ru