3D Ecological Simulation for Artificial Water Body Eutrophication Risk
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Solution Overview
Problem
Current methods struggle to predict and prevent eutrophication in artificial water bodies during the urban planning and design stage, as they require accurate, detailed data that is difficult to obtain, especially for small-sized artificial lakes and tributaries.
Innovation Solution
A method involving the creation of a three-dimensional model of the artificial water body using planning data, incorporating surrounding buildings, and employing ecological simulation technology to analyze hydrological mobility, wind fields, solar radiation, and temperature, allowing for the assessment of eutrophication risk and identification of prevention and control regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional eutrophication research methods using ELCOM-CAEDYM model or fluid dynamics combining with remote sensing are applied, then accurate simulation of eutrophication can be achieved, but it requires detailed parameters such as actual concentration of nitrogen, phosphorus and chlorophyll a, extinction coefficient of the water body, and surface reflectivity of long-wave radiation which are difficult to obtain at the planning and design stage
Solution Approach 1:
The patent applies preliminary action by conducting eutrophication risk assessment during the urban planning and design stage, before the artificial water body is constructed. This allows prediction of eutrophication risks using readily available planning data rather than requiring detailed measurements after construction. The method performs simulations and assessments in advance to identify potential problems and guide design modifications before the water body exists.
Solution Approach 2:
The patent creates a three-dimensional digital model that replicates the planned artificial water body and surrounding environment. This virtual copy allows for ecological simulation and eutrophication risk assessment without needing the actual physical water body. The model incorporates planning data to represent hydrological characteristics, surrounding land use, and other relevant factors, enabling accurate prediction without requiring detailed field measurements.
2Reliability
If detailed parameter measurements are conducted to achieve accurate eutrophication assessment, then reliable results can be obtained, but such measurements are difficult to implement at the planning and design stage when the water body does not yet exist
Solution Approach 1:
The patent uses a three-dimensional digital model as an intermediary between the planning data and the eutrophication assessment. This model serves as a mediator that translates readily available planning information into meaningful ecological predictions. The model incorporates hydrological mobility, hydraulic retention time, water body surface area, and other parameters derived from planning data to simulate ecological processes and assess eutrophication risks without requiring direct field measurements.
Solution Approach 2:
The patent transforms the assessment approach by changing from requiring direct measurement of detailed ecological parameters to using planning data parameters that can be readily obtained. The method recalculates or estimates ecological parameters based on the three-dimensional model and planning information, such as deriving hydrological characteristics from water body geometry and surrounding land use patterns, thereby making the assessment feasible at the planning stage while maintaining reliability.
3Loss of information
If ecological simulation is performed using existing methods, then current eutrophication conditions can be analyzed, but these methods cannot predict eutrophication range and degree for water bodies that are only in the plan stage
Solution Approach 1:
The patent performs preliminary ecological simulation and eutrophication risk assessment during the planning stage, before the water body is constructed. This predictive approach uses the three-dimensional model and planning data to forecast potential eutrophication conditions, allowing designers to identify high-risk areas and modify the design accordingly. The simulation predicts hydrological mobility, hydraulic retention time, and other ecological parameters that will characterize the finished water body.
Solution Approach 2:
The patent creates a multi-functional assessment system that can handle various types of planning data and perform multiple functions: creating the three-dimensional model, simulating ecological processes, assessing eutrophication risks, and identifying control regions. The method integrates hydrological analysis, ecological simulation, and risk assessment into a unified framework that works with planning data to provide comprehensive predictions for artificial water bodies in the design stage.
Data Source
AI summary
The present invention relates a method for early warning analysis of eutrophication of a designed artificial water body, comprising: establishing a three-dimensional model of the designed artificial water according to the data corresponding to a planning scheme of the water body, wherein the three-dimensional model of the designed artificial water body comprises at least the designed artificial water body and surrounding buildings; according to the three-dimensional model of the designed artificial water body, analyzing the designed artificial water body through an ecological simulation technology to obtain at least one of the analysis results including hydrological mobility, hydraulic retention time, algal community composition of source water, designed water depth, water body surface wind field, solar radiation and temperature of the designed artificial water body; and assessing the risk of eutrophication of the designed artificial water body according to at least one of the analysis results of the ecological simulation.