用模型错误对有害藻类繁殖的数据意识预测
Ming Cheng1, Aleksey Y Sheshukov2, Peng Wang3
1Department of Civil, Chemical, Environmental, and Materials Engineering, University of Bologna, Italy.
Water research
|July 22, 2025
概括
这项研究引入了一个新的建模框架,用于预测有害藻类繁殖 (HABs). 该框架可以在7天前准确预测HAB,优于统计和机器学习模型.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 计算生物学 计算生物学
背景情况:
- 有害藻类繁殖 (HABs) 对人类健康,水生生态系统和水资源利用构成重大风险.
- 有效的HAB管理需要全面的历史分析,准确的短期预测和主动的现场湖泊管理策略.
研究的目的:
- 开发和评估一种新的建模框架,用于对有害藻类繁殖 (HABs) 的短期预测.
- 为了比较卡尔曼波器 (KF) 和高斯过程 (GP) 方法在估计 HAB 预测模型误差中的有效性.
主要方法:
- 一个机械的菌生长模型与错误估计技术集成,特别是卡尔曼波器 (KF) 和高斯过程 (GP).
- 该框架利用每天对细菌度,温度,,和辐射的观察来估计模型错误.
- 开发的模型被应用于预测堪萨斯州切尼水库的HAB,使用现有的高频历史数据.
主要成果:
- 两种KF和GP变体都为HAB提供了准确的三天和七天预测,在更长的预测时间内,准确性会下降.
- 与卡尔曼波器 (KF) 方法相比,高斯过程 (GP) 变体显示出更高的预测准确性.
- 拟议的建模框架显著优于无模型的统计方法和机器学习技术,相对误差减少至少50%,确定系数增加70%.
结论:
- 开发的建模框架为短期HAB预测提供了强大而准确的解决方案.
- 该研究强调了机械模型与先进的错误估计技术相结合的潜力,以改善水质管理.
- 两种KF和GP方法都为HAB预测提供了有价值的工具,GP以增加的计算成本提供了更高的准确性.
相关概念视频
Steps in Outbreak Investigation
209
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
209
Other Algae
92
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
92
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
102
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
102
Random Error
1.6K
Random or indeterminate errors originate from various uncontrollable variables, such as variations in environmental conditions, instrument imperfections, or the inherent variability of the phenomena being measured. Usually, these errors cannot be predicted, estimated, or characterized because their direction and magnitude often vary in magnitude and direction even during consecutive measurements. As a result, they are difficult to eliminate. However, the aggregate effect of these errors can be...
1.6K
Overview of Algae
197
The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
197


