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Abstract MODIS True-Color images downloaded from NASA Worldview website had been successfully used in near real-time global air pollution monitoring. In this paper, we introduced how to grab NASA MODIS 250m True-Color image automatically from the website by using GDAL utilities. Using multiple linear regression, we found a significant relationship between the R, G, B values in MODIS True-Color image and the surface-level particle matter concentrations (AQI, PM2.5 and PM10), with a multiple R value of 0.62, 0.65 and 0.59, respectively. By combining MODIS True-Color image series with stational observation and atmospheric circulation analysis, we established a new operational procedure for haze pollution monitoring and early warming. With such a simple technical method, a severe haze pollution event that occurred in Zhejiang Province from November 9 th to 14 th, 2014 was successfully predicted based on the information two days earlier. The results showed that haze monitoring and early warming based on the MODIS True-Color image series was relatively easy and efficient in operational survey, and the new method had great potential in regional haze pollution monitoring and early warming, especially as an indicator for pollution input from other regions.
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Received: 20 March 2015
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