Scenario modeling of hydrodynamics and impurity propagation in Lake Baikal

Tsvetova, Elena

doi:10.31951/2658-3518-2020-a-4-950

Cited by 2 publications

(3 citation statements)

References 3 publications

(3 reference statements)

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“…The inability to "take everything into account" forces us to rank the factors involved according to their significance for solving specific tasks and to abstract from the secondary ones to some extent. To give generality to the conclusions, we do not tie the study to the specific period, but turn to scenario modeling methods when considering selected scenarios for specifying the sources of impacts and model parameters 14 . In particular, to model hydro-thermodynamics of the lake, we use a set of parameters that are conditionally combined into "climatic" scenarios.…”

Section: Mathematical Model and Scenario Approachmentioning

confidence: 99%

Transport model: microplastic in Lake Baikal

Tsvetova

2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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With the help of a transport model, the issues of the distribution of neutrally floating particles simulating microplastic (MP) in Lake Baikal are studied. A three-dimensional model of the lake hydro-thermodynamics in the non-hydrostatic formulation is used to produce the fields of currents and the other necessary parameters for the transport model. To give generality to the conclusions, we use a set of parameters that are conditionally combined into hypothetical scenarios. In them, we design the "climatic" scenarios of external influences, in accordance to which the fields of currents and temperature in the hydrodynamic model are calculated. Depending of the goals of the study, we also formulate the specific tasks for giving the impurity sources in the transport model. The results of calculations are presented, in which some possible locations of an increased concentration of impurities in the lake were revealed.

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Section: Mathematical Model and Scenario Approachmentioning

confidence: 99%

Transport model: microplastic in Lake Baikal

Tsvetova

2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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“…1, right) were calculated by jointly solving the hydrodynamic system of equations and the impurity propagation equation according to the scenario of "climatic" atmospheric effects in June. The latter is compiled using the Monte Carlo method and the tables of regime characteristics of frequency and succession of various types of wind 9 . Figure 2 shows the backward time scenario results for the monitoring network A.…”

Section: Evaluation Of the Observability Of The Territory By Monitori...mentioning

confidence: 99%

“…The coastal outlines and the bottom relief, which changes significantly in the area of modeling, play an important role in the formation of the system of currents in the lake. In our research, in the presence of a large number of uncertainties inherent in the tasks of modeling real natural objects, we prefer to use a scenario approach in order to abstract from specific situations in favor of some generalized cases in the form of "climatic" scenarios 9 . The latter are sufficiently based on atmospheric data base 10 of winds and pressure fields.…”

Section: Introductionmentioning

confidence: 99%

Hypothetical scenarios of microplastics propagation in Lake Baikal

Tsvetova

2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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This work is a continuation of the study on modeling the propagation of microplastic (MP) in Lake Baikal. A threedimensional Eulerian type model, represented by the advection-diffusion-reaction equation, is used to simulate the behavior of MP in the lake. To set the hydrodynamic background, a three-dimensional model of the hydrothermodynamics of the lake in a non-hydrostatic approximation is used. Some "climatic" scenarios of atmospheric influence are compiled to be used for MP propagation modeling. In addition to the traditional approach based on direct (forward in time) modeling, we consider its combination with inverse modeling methods, assuming to solve the actual problems of sensitivity, optimization and control, which are important in environmental protection and design. Based on hydrodynamic scenarios, we formulate some inverse problems for assessing the fate of MP in the lake. In particular, two hypothetical scenarios are considered to assess the informational significance of the virtual monitoring networks that "observe" the spread of MP in the lake.

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Scenario modeling of hydrodynamics and impurity propagation in Lake Baikal

Cited by 2 publications

References 3 publications

Transport model: microplastic in Lake Baikal

Transport model: microplastic in Lake Baikal

Hypothetical scenarios of microplastics propagation in Lake Baikal

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