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A River Channel Clustering Method Based on Algal Bloom

A clustering method and river channel technology, applied in the field of clustering, can solve problems such as lack of research

Active Publication Date: 2021-11-30
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, research on the mechanism of algal blooms in rivers is mainly focused on a single river. For rivers with different characteristics in different regions, whether there are clusters, whether there are similar algal bloom risks and mechanisms, and even prevention and control measures, there is a lack of research

Method used

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  • A River Channel Clustering Method Based on Algal Bloom
  • A River Channel Clustering Method Based on Algal Bloom
  • A River Channel Clustering Method Based on Algal Bloom

Examples

Experimental program
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Embodiment 1

[0160] Taking many tributaries of a large river-type reservoir as an example, the steps of river clustering based on algal bloom outbreak are as follows:

[0161] 1. Establish an indicator system for algal blooms in rivers

[0162] The index system of algal bloom outbreak in river course is as follows: figure 2 As shown, including the first-level index layer and the second-level index layer;

[0163] The first-level indicator layer includes river channel form indicators, water body dynamic indicators, water body physical and chemical factor indicators, water body optical indicators and water body nutrition indicators, a total of 5 first-level indicators;

[0164] The secondary index layer is composed of secondary indicators. The river channel shape indicators include length indicators, area indicators and meandering degree indicators. The water body dynamic indicators include water level indicators, flow velocity indicators, and water body vertical stability coefficient indi...

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Abstract

The invention discloses a river course clustering method based on water bloom outbreak, which comprises the following steps: establishing a river course water bloom outbreak index system; determining the system index weight; calculating index scores; and river course clustering. The present invention comprehensively considers the indicators of the outbreak of algal blooms in the river course, including the shape of the channel, the dynamics of the water body, the physical and chemical factors of the water body, the optics of the water body, and the nutritional indicators of the water body, and establishes an index system for the outbreak of algal blooms in the river course, and uses the subjective and objective comprehensive weighting method to determine the weight of each index, and finally Use the system clustering method to cluster rivers, so as to classify rivers in different regions and with different characteristics, understand the general law of algal blooms in rivers, and provide an effective technical management tool for algal bloom risk prediction and algal bloom prevention and control .

Description

technical field [0001] The invention relates to a clustering method, in particular to a river channel clustering method based on algal blooms. Background technique [0002] With the development of society and frequent human activities, great changes have taken place in the ecological environment of river courses, and different degrees of algal blooms have aroused social concern. The outbreak of algal bloom is the response of the aquatic ecosystem to the eutrophication of the water body. The outbreak of algal bloom directly destroys the ecological landscape of the water area, endangers the survival and development of living organisms in the ecological environment of the water area, and even threatens human health. In order to study the mechanism of algal blooms in rivers, environmental scholars have conducted research on river channel morphology, hydrodynamic characteristics of river water, water temperature, nutrient salt characteristics, dominant species, etc., and found th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/26G06F16/29G06F16/2458
CPCG06Q10/0639G06Q50/26
Inventor 李一平赖秋英黄亚男郭辉
Owner HOHAI UNIV