Evaluation model framework of gulf water circulation characteristics

Abstract

The invention belongs to the technical field of environmental protection, and particularly relates to a bay water circulation characteristic evaluation model framework which is finally used for helping to identify a bay sensitive to pollutants. The invention provides a systematic gulf management tool with strong operability of'basic data collection-analysis path selection of characteristic factors-evaluation of sensitivity of the gulf to pollutants' for management decision-making. According to the method, a bay water body circulation evaluation model framework comprising a basic environment data layer, a bay layering path layer, a water body exchange time path layer and a bay environment sensitivity evaluation layer is built mainly based on two parameters representing bay water body circulation characteristics, namely, water body layering and water body exchange time; in combination with the use condition, data availability and model feasibility of the existing empirical model, a set of water circulation characteristic evaluation solution based on the limitation of the actual conditions of the bay is provided; a preliminary quantification scheme for evaluating the sensitivity of the bay to the pollutants by utilizing the characteristic factors of the water circulation of the bay is provided.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and is mainly used for identifying, quantifying and evaluating the characteristics of water circulation in the bay. By applying the evaluation model framework, it can quickly determine the stratification type and water exchange of the bay, which can be applied to judge the sensitivity of the bay to pollutants from the perspective of the water cycle of the bay, so as to realize early warning of ecological security and support the management policy of bay protection. Background technique [0002] Gulf estuaries are transition areas from rivers to oceans and are important ecosystems. However, the accumulation of nutrients, sediments and pollutants in the bay will have a potential impact on the health of the bay ecosystem, thereby affecting the health of surrounding residents and human social activities. In the bay, the process of water circulation and exchange between the fresh wat...

AI Technical Summary

Problems solved by technology

[0011] 1) Lack of integration and correlation between parameters: the existing empirical models have not yet integrated the two key factors of bay water stratification and water exchange time, reflecting the circulation characteristics of bay water from the vertical and horizontal directions

[0012] 2) Lack of a general model system applicable to all bays: In view of the different usage constraints and calculation accuracy of the models, as well as the different environmental characteristics and data accumulation bases of the bays, there is still a lack of a general model system suitable for the evaluation of the water circulation characteristics of the bay , it is urgent to select the corresponding evaluation path according to the model and the constraints of the bay itself, and complete the personalized quantitative evaluation of the water cycle characteristics of the bay

[0013] 3) Lack of a complete evaluation system: the current model has not yet formed a systematic evaluation model for the characteristics of the bay water cycle from "basic data collection - analysis path selection - bay sensitivity assessment to pollutants"

[0014] 4) Lack of models suitable for management decision makers: At present, my country's bay management is in the development stage, and there is still a lack of simple and easy-to-use bay management models suitable for decision-making management, so as to support managers to quickly identify potential bay ecological crises, and early response prevention

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