[基于SARIMA-BP神经网络的城市近地表面臭氧预测模型]
Cheng-Li Xu1, Chao-Yang Zheng1
1Department of Mathematics and Statistics, Hefei University, Hefei 230601, China.
Huan jing ke xue= Huanjing kexue
|March 14, 2026
概括
一个新的混合机器学习模型结合季节性自回归整体滑动平均 (SARIMA) 和逆向传播神经网络 (BPNN) 显著改善了城市臭氧污染的预测. 这种综合方法提高了有效环境管理的预测准确性.
科学领域:
- 环境科学 环境科学
- 数据科学数据科学数据科学
- 大气化学 大气化学
背景情况:
- 城市臭氧 (O3) 污染在中国因快速城市化和工业化而越来越令人担忧.
- 传统的时间序列模型往往无法在O3度预测中考虑随机因素.
- 准确的O3预测对于制定有效的污染控制策略至关重要.
研究的目的:
- 提出一种新的机器学习融合模型,用于改进城市O3度预测.
- 解决传统模型在捕捉 O3 污染的随机元素方面的局限性.
- 提高O3污染预测的准确性,以改善环境管理.
主要方法:
- 开发了一个综合模型,将季节性自回归整体滑动平均 (SARIMA) 和逆向传播神经网络 (BPNN) 结合起来.
- 使用季节性趋势分解 (STL) 将O3数据分成线性 (趋势,季节性) 和非线性 (随机) 组件.
- 应用SARIMA用于线性元件预测和BPNN用于非线性元件装配,将两者整合为最终输出.
主要成果:
- 与单个SARIMA和BP模型相比,集成的SARIMA-BP模型显示出更高的预测准确性.
- 在O3度预测中达到8.3852μg·m−3的根平均平方误差 (RMSE).
- 超越了SARIMA-长期短期记忆 (LSTM) 模型的表现,表明了增强的预测能力.
结论:
- SARIMA和BPNN的融合为预测城市O3污染提供了一个强大而准确的方法.
- 该模型能够处理线性和非线性模式,这大大提高了预测准确度.
- 为城市臭氧污染预防和控制举措提供了宝贵的理论基础.
相关概念视频
Response Surface Methodology
776
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
The process of RSM involves several key steps:
776
Prediction Intervals
3.5K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
3.5K
Predicting Reaction Outcomes
11.3K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
11.3K
Predicting Molecular Geometry
46.8K
VSEPR Theory for Determination of Electron Pair Geometries
46.8K
Maxwell-Boltzmann Distribution: Problem Solving
3.1K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
3.1K
Variation of Atmospheric Pressure
4.3K
Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
4.3K


