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Interpolation of missing ozone data using graph machine learning and parameter analysis through eXplainable artificial intelligence comparison

delete2025-05-01
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PRE
AI
J
Jung, Seonje
J
Junsu Gil *
M
Meehye Lee
C
Clara Betancourt
M
Martin G. Schultz
Y
Yunsoo Choi
J
Joo, Taekyu
K
Kim, Daigon
DOI:10.1016/j.envsoft.2025.106466delete
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摘要

摘要

En 中文
臭氧(O3),一种短寿命气候污染物,尽管韩国实施了旨在抑制其前体物的政策,但其浓度仍在持续上升。政府运营约500个观测站以监测臭氧和痕量气体。研究人员利用这些数据来应对臭氧浓度持续升高的现存问题。然而,从观测站获取数据时可能遇到的挑战会在臭氧研究中引入偏差。本研究开发了一种基于图(graph-based)的机器学习模型,用于模拟缺失的臭氧浓度以减少偏差。该模型利用韩国2021年的合并观测数据集,融入了时空分布特征。无论区域或缺失数据长度如何,该模型均能有效模拟臭氧变化,R²最高达0.9,RMSE为3.6。为确定输入参数对臭氧插值的影响,我们采用了可解释人工智能(eXplainable AI)方法。结果表明,NO2是城市地区最重要的因素,而光化学指标在省份地区更具影响力。
Keyword:
Graph machine learning
Missing data interpolation
Spatiotemporal ozone characteristics
Climate change
Surface ozone
Explainable machine learning

期刊

E
Environmental Modelling and Software
IF:
4.6
论文数:
511
被引数:
1.8W

机构

N
Natl Inst Environm Res
学者数:
69
论文数: 33
被引数: 4
A
axa konzern ag
学者数:
1
论文数: 1
被引数: 0
J
julich supercomp ctr
学者数:
1
论文数: 1
被引数: 0
U
Univ Houston
学者数:
693
论文数: 383
被引数: 115
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