Comparison of different models for assessing air quality in Krasnoyarsk using satellite data

Abstract

Methods for estimating the atmospheric pollution of Krasnoyarsk by particulate matter based on satellite data on the aerosol optical depth (AOD) are considered. Satellite data from the MODIS MAIAC algorithm with a spatial resolution of 1 km are used together with data from the ground-based PM2.5 environmental monitoring stations of the FRC KSC SB RAS research network. A comparative analysis of the relationship between the calculated values of PM2.5 obtained from AOD data and ground- based measurements of PM2.5 in the summer of 2019 is presented. Various models of the relationship between these parameters were investigated, and a high level of correlation of these values was obtained. The calculated coefficient of determination was about 0.7.

Spatio-Temporal Variability of the Aerosol Optical Depth over the Gorky and Cheboksary Reservoirs in 2022–2023

“…Due to the high spatial resolution of 1 km and reliable cloud detection, MAIAC provides data in conditions of partial clouds, when standard products with coarse resolution cannot provide reliable information about the optical characteristics of the atmospheric layer. According to MODIS and MAIAC data, the AOD values are a combined signal of the Terra and Aqua satellites-information which is provided in close to real time [17][18][19][20]. For the Gorky Reservoir, the overpass time usually was about 11 AM.…”