Analysis On The Characteristic Of Aerosol Optical Depth Changed With Season In Delingha And Hefei

The optical aerosol thickness and the wavelength index data of the aerosol in the Delingha and Hefei areas were calculated by the statistical analysis of the aerosol optical thickness measured by the POM02 solar radiometer.The influence of the aerosol thickness on the wavelength of the aerosol was analyzed.The variation characteristics of the parameters such as wavelength index,turbidity coefficient and aerosol optical thickness were obtained.Aerosol optical properties have some reference significance.The main results achieved are as follows:(1)to deal with the solar radiometer data for each region for nearly three years.From which the weather was fine,the more complete data were analyzed and plotted.Finally,the data of Hefei and Delingha area were selected as the main basis for the analysis of aerosol optical thickness.(2)The effective data of solar photometer in Hefei 11,13,14,Delhiha 12,13,and 14 years were divided according to the four seasons,and the average value of aerosol thickness in each band was calculated.The Angstrom formula is fitted to obtain the results,and the average wavelength index and turbidity coefficient of the four seasons are obtained.(3)The aerosol optical thickness AOD and Angstrom index daily and monthly changes in Hefei and Delingha areas were given respectively.(4)Records of changes in optical thickness of aerosol in dusty weather in Delingha.November 2 to 4 November 2012 Delhiha occurred a dust weather process,of which No.2 due to the weather is too harsh equipment off,No.3 all day data,No.4 recorded after the end of the dust process aerosol optics thickness.And the change process of particle spectrum in dust weather was obtained by using inversion algorithm.(5)The diurnal variation of the aerosol thickness of Hefei aerosol was analyzed,and the diurnal variation of the optical thickness of aerosol in several typical weather was obtained.