Extinction Coefficient from Atmospheric Aerosols over LHAASO
August 26, 2019
July 02, 2021
We investigate the extinction coefﬁcients of atmospheric aerosol over the Large High Air Shower Observatory (LHAASO), located at the Haizi Mountain, Daocheng County, China. The Aerosol Optical Depth(AOD), the column-integrated extinction coefﬁcient(EC), is obtained by MODerate-resolution Imaging Spectroradiometer(MODIS) from 2011−2018. The data of extinction coefﬁcients over LHAASO have been analyzed by Infrared Pathﬁnder Satellite Observations (CALIPSO) satellite during 2011-2017. Our results show that the AOD and EC have yearlyvariationwiththepeakvaluesinJuly, AugustandSeptember, andlessintheothermonths, which suggests that the atmospheric aerosols over LHAASO has its special characteristics. Over LHAASO the EC of the atmospheric aerosols are very small, which is consistent with other studies. The maximum values of EC occurredaround 6∼7km altitude. Due to the bigger errorof EC, more CALIPSO data to be utilized for the variability of EC over LHAASO.
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