Spatio-Temporal Distribution of SO2 Concentration: In Baiyin Based on OMI Data

doi:10.11924/j.issn.1000-6850.casb16070061

Abstract

Abstract: The author studied the spatio- temporal distribution characteristics of SO2 concentration and estimated the total emission of SO2 in Baiyin by using OMI satellite remote sensing data from January 2011 to December 2013, with remote sensing image processing method and the geographic information system analysis technology. The results showed that: the distribution of SO2 values was extremely imbalanced, showing a discrete planar, the high value area mainly concentrated in central and southern parts of Baiyin and central and western regions of the Pingchuan; besides, SO2 concentration in winter was significantly higher than that in summer, and they presented a“U” distribution; the high value range was not obvious, but SO2 high concentration scope had a significant increase. The study showed that using the OMI level-2 trace data, the author could build a model to evaluate the raster data on ground environment, in order to provide theoretical basis and method for remote monitoring of atmospheric boundary layer SO2 in Baiyin.

CLC Number:

X511

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