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Modeling oxygen-supply depletion in a local region of a reservoir subjected to wind-generated pile up and decomposition of a phytoplankton mass

  • Ecology And Hydraulic Engineering
  • Published:
Hydrotechnical Construction Aims and scope

Conclusions

1. A procedure is proposed for possible use in calculating oxygen-supply depletion in a local area of a reservoir (gulf, bay, near-dam section) with wind-generated pileup and decomposition of a phytoplankton mass, and also for assessing the conditions of this depletion (trophicity of the reservoir, wind speed, direction, and duration, etc.).

2. The size of the local area (section) of the reservoir can be selected arbitrarily, but with allowance for the morphometric characteristics of the reservoir and the specifics of the problem being solved, which consists in the fact that assessment of conditions of oxygen-supply depletion in any section of the reservoir is probabilistic, i.e., ambiguous, in nature. Depletion of the oxygen supply can therefore be calculated for various conditions, including the dimensions of the section, but principally for wind conditions, which in final account, also determined the indicated estimate.

3. The proposed method makes it possible to predict the probability of an ecologically dangerous depletion of oxygen supply in a reservoir; this is illustrated in an example of the Verkhneupinsk Reservoir currently under design. Such a prediction may serve as the basis for the development of methods to reduce the eutrophication level of a reservoir and control the quality of its water to prevent starvation phenomena.

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Authors
  1. A. G. Sokolov
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Translated from Gidrotekhnicheskoe Stroitel’stvo, No. 5, pp. 43–49, May, 1998.

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Sokolov, A.G. Modeling oxygen-supply depletion in a local region of a reservoir subjected to wind-generated pile up and decomposition of a phytoplankton mass. Hydrotechnical Construction 32, 290–298 (1998). https://doi.org/10.1007/BF02918703

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  • DOI: https://doi.org/10.1007/BF02918703

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