your publications

[Knut]

Dear getm-users,

we are interested to see and advertize your latest publications with
GETM. Feel free to send the bib info of your publications to us, that
are not yet in our list at https://getm.eu/publications.html.

Cheers, Knut

[Debolskaya Elena]

Dear Knut,
here are a couple more publications and abstracts.
Best regard,
Elena Debolskaya.

1. Yakushev, E.V., Debolskaya, E.I., Kuznetsov, I.S., Staalstrøm, A. (2011). Modelling of the Meromictic Fjord Hunnbunn (Norway) with an Oxygen Depletion Model (OxyDep). In: Yakushev, E. (eds) Chemical Structure of Pelagic Redox Interfaces. The Handbook of Environmental Chemistry, vol 22. Springer, Berlin, Heidelberg. https://doi.org/10.1007/698_2011_110

A biogeochemical model OxyDep coupled with three-dimensional hydrodynamic model GETM was used to simulate the hydrophysical and biogeochemical regimes of the meromictic Fjord Hunnbunn over the summer period. The main goal was to parameterize the oxygen depletion processes resulting in formation of suboxic and anoxic conditions in the water column. OxyDep considered five state variables: dissolved oxygen, inorganic nutrient, dissolved organic matter, particulate organic matter, and biota. This model parameterized the main processes responsible for the changing of the water column oxygen conditions – i.e. organic matter (OM) synthesis; OM decay due to oxic mineralization and denitrification; consumption of oxygen from sulphur and metals oxidation; and the processes at the boundaries (air–water exchange and the sediment–water exchange). Results of numerical experiments have reproduced the main features of the observed structure and have allowed to reveal the main components responsible for the formation of biogeochemical structure of the meromictic water objects. With the hydrodynamical model block used it was impossible to reproduce the presence of a permanent pycnocline. We suppose that special attention must be paid when using terrain following vertical coordinates (i.e. GETM) to avoid spurious vertical mixing. The results also showed that an application of simplified biogeochemical model blocks can be used as a useful tool for analysing and forecasting oxygen and nutrient regime changes.

2. Debolskaya, E.I., Saminsky, G.A. Application of Mathematical Modeling and Analysis of Turbulent Characteristics to Identify the Stagnant Zones of Water Bodies (On the Example of the Ivankovo Reservoir). Power Technol Eng 55, 881–887 (2022). https://doi.org/10.1007/s10749-022-01448-x

This article discusses a method to determine the development factors and conditions necessary for the occurrence of ecologically unfavorable stagnant zones by analyzing the turbulent structure of a reservoir and establishes a set of evaluation criteria. The study object was the Ivankovo water reservoir (Moscow Sea), and the research methods were field measurements and mathematical modeling with 3D General Estuarine Transport Model (GETM). Results showed that shallow water is not a necessary condition for the formation of zones with reduced turbulent exchange. Such domains can appear at the boundaries of a system with oppositely directed large-scale vortices, and their formation depends on the water body morphometry and wind impact. These domains can also extend to a considerable depth and become a potential ecological hazard.

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