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Short-term forecasting method for eutrophication shallow lake algae source lake flooding

A technology for eutrophication and short-term forecasting, which is applied in the fields of basic theory and applied basic research in environmental science and engineering disciplines, and can solve problems such as staying

Active Publication Date: 2015-05-13
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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Problems solved by technology

[0004] At present, there are many researches on the prediction and early warning technology of cyanobacterial blooms, but the research on lake flooding mostly stays in the aspects of follow-up observation and mechanism research. forecast less

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  • Short-term forecasting method for eutrophication shallow lake algae source lake flooding

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Embodiment Construction

[0060] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0061] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be understood that the various concepts and embodiments described above, as well as those concepts and embodiments described in more detail below, can be implemented in any of a number of ways, which should be the concepts and embodiments disclosed by the present invention and not Not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0062] The present invention provides a short-term prediction met...

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Abstract

The invention provides a short-term forecasting method for eutrophication shallow lake algae source lake flooding. The method comprises the steps that a plurality of monitoring points are set in a water area where shallow lake flooding is likely to happen so as to measure meteorological parameters and water environment parameters; a space mesh dividing and interpolation algorithm is used for interpolating the water environment parameters of the monitoring points to a whole lake, and space distribution is used as the initial condition of a water quality numerical model; the wind field time and space distribution in the next three days is used as model external stress, a three-dimensional water power-water quality numerical model is driven to conduct calculation, and the time and space distribution of the shallow lake chlorophyll a and the dissolved oxygen concentration in the next three days is obtained; the time and space distribution of the chlorophyll a and the dissolved oxygen concentration is used for being combined with the meteorological parameters, so that a probability empirical formula is established, and the probability of lake flooding in the water area where the lake flooding is likely to happen in the next three days is calculated. For the water area where the lake flooding probability is large, the position and area of lake flooding are further determined.

Description

technical field [0001] The invention relates to a short-term forecast method for algae-derived lake flooding of eutrophic shallow lakes, and belongs to the technical field of basic theory and applied basic research of environmental science and engineering disciplines. Background technique [0002] In the past 20 years, the water environment problems of shallow lakes in the middle and lower reaches of the Yangtze River in my country have become increasingly serious. In summer and autumn, cyanobacteria blooms caused by lake eutrophication have occurred frequently, seriously affecting the water quality landscape, and even endangering the safety of water supply. "Lake flooding" caused by cyanobacterial blooms is the occurrence of eutrophic water bodies in lakes under suitable meteorological and hydrological conditions after a large number of algae outbreaks, accumulations and death, and organic matter in the sediment under anoxic and anaerobic conditions. The biochemical reactio...

Claims

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Application Information

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IPC IPC(8): G06F19/00
CPCY02A10/40
Inventor 李未朱广伟张运林秦伯强
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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