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An interpretable physics-informed deep learning model for estimating multiple air pollutants

delete2025-03-25
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OA
AI
B
Binjie Chen
J
Jiacong Hu
Y
Yumiao Wang
冯添 封面图
冯添 (Tian Feng)
W
Weiwei Sun *
冯
冯尊磊 (Zunlei Feng) *
杨刚 封面图
杨刚 (Gang Yang)
王惠琼 封面图
王惠琼 (Hui‐Qiong Wang)
DOI:10.1080/15481603.2025.2482272delete
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摘要

摘要

En 中文
由于中国复合型空气污染,对大气组分的精确有效监测迫在眉睫。尽管已做出诸多努力以估算各类空气污染物浓度,但关注单一污染物而忽视了它们之间的相互作用,从而限制了估算精度。此外,这些研究中共享数据和模型结构的使用因重复劳动导致了低效。再者,广泛应用的机器学习模型已显示出缺乏可解释性及物理基础薄弱。为解决这些问题,本研究开发了一种可解释的物理信息深度神经网络(IPMDNN),用于同时估算多种空气污染物。模型输入最初基于先验大气知识进行分类。为考虑各输入对不同污染物的影响差异,采用了基于tanh的自注意力机制动态调整其贡献。随后引入深度交互模块以捕捉污染物间的复杂物理化学相互作用。为与物理定律保持一致,纳入了物理约束损失函数。最后,采用逐层相关传播解释模型结果。2019-2020年在中国的实验表明,所提模型能有效同时估算臭氧(O3)和颗粒物(PM2.5和PM10)浓度。与分别估算模型相比,所提模型在样本交叉验证R2值上分别达到O3、PM2.5和PM10的0.92、0.90和0.87,效率提升超过两倍。此外,模型解释识别出甲醛、一氧化碳、羟基自由基和温度为联合估算的关键贡献因子。模型生成的污染分布图突显了中国东、中、北部的严重O3和PM污染。就季节趋势而言,夏季观测到严重O3污染,而高PM污染水平出现在冬季。这些发现表明,该高精度、高效率的模型可为中国的空气污染协同控制提供有价值的见解。
Keyword:
Air pollution
remote sensing
joint estimation
multi-task deep learning
layer-wise relevance propagation

期刊

GIScience and Remote Sensing 封面图
GIScience and Remote Sensing
IF:
6.9
论文数:
1.1K
被引数:
4.5K

机构

N
Ningbo University
学者数:
2.6W
论文数: 1.8W
被引数: 2.4W
Z
zhejiang university
学者数:
17.7W
论文数: 12.1W
被引数: 152
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引用论文

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