ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume V-3-2022
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-3-2022, 303–310, 2022
https://doi.org/10.5194/isprs-annals-V-3-2022-303-2022
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-3-2022, 303–310, 2022
https://doi.org/10.5194/isprs-annals-V-3-2022-303-2022
 
17 May 2022
17 May 2022

ONE DAY AHEAD PREDICTION OF PM2.5 SPATIAL DISTRIBUTION USING MODIS 3 KM AOD AND SPATIOTEMPORAL MODEL OVER BEIJING-TIANJIN-HEBEI, CHINA

X. Wang1,3, W. Liu1,3, W. Sun2,3, Y. Peng1,3, Y. Zhang1,3, X. Zhai1,3, T. Zhao1,3, and R. Li1,3 X. Wang et al.
  • 1National Geomatics Center of China, Beijing 100830, China
  • 2College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
  • 3Key Laboratory of Spatio-temporal Information and Intelligent Services (LSIIS), MNR

Keywords: MODIS AOD, PM2.5, PM2.5 spatiotemporal distribution, Spatiotemporal autoregressive model, Machine learning model

Abstract. Accurate prediction of PM2.5 concentration is the premise and guarantees to effectively control PM2.5 concentration and avoid the adverse effects of high PM2.5 concentration on human health. However, given the existing statistical models can only predict the pollutant concentration at the monitoring sites, the spatial distribution of PM2.5 concentration cannot be predicted, which greatly limits the application of the model in PM2.5 concentration prediction. This study combined the PM2.5 spatial distribution data predicted using the Moderate Resolution Imaging Spectroradiometer 3 km aerosol optical depth (AOD) and meteorological factors into a spatiotemporal autoregressive (STAR) model to predict the regional PM2.5 concentration and quantify the short-term spatial distribution change of PM2.5 in Beijing–Tianjin–Hebei region (JingJinJi) one day in advance. Five simulation functions were used to simulate the STAR model, and the 2014 data of JingJinJi were used to verify its accuracy. Results showed that the STAR model had the best prediction performance when gradient boosting decision tree was used as the simulation function compared with other simulation functions. The coefficient of determination (R2), root mean square prediction error (RMSE), index of agreement (IA), and mean absolute error (MAE) of the STAR model were 0.85, 27.08 µg/m3, 0.96, and 20 µg/m3, respectively. The spatial distribution prediction results of PM2.5 showed that the +1-day PM2.5 spatial distribution prediction results were in good agreement with the PM2.5 spatial distribution results predicted by AOD to provide accurate spatiotemporal distribution data for reducing air pollution and air pollution early warning.