Inversion of PM Concentration in Anhui Province from MODIS Aerosol Optical Depth
HUO Yanfeng
YANG Guanying
BAI Qingmei
WU Biwen
DENG Xueliang
YU Caixia
ZHAI Jing
HUANG Junkai
ZHANG Hao
Abstract：Based on aerosol optical depth from MODIS level2 products,the relationship model between aerosol optical depth and particulate matter concentration was established by vertical correction and water vapor correction.The time series of PM2.5 concentration in Hefei was analyzed as well.Results show that the correlation coefficient of aerosol optical depth and PM concentration is low.However,the correlation coefficient is obviously higher than before through vertical correction and water vapor correction.The boundary layer thickness and relative humidity from ECMWF reanalysis products are suitable for vertical correction and water vapor correction of aerosol optical depth.The month average PM2.5 concentrations of Hefei by calculating with MODIS aerosol optical depth show a trend of growth shock.PM2.5 concentration is high in winter,followed in spring and autumn,and the lowest in summer.
Keywords：MODISaerosol optical depthparticulate matter concentrationvertical correctionwater vapor correction
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 59-64 )