Monitoring the atmosphere aerosol optical characteristics using hyperspectral remote sensing in Hangzhou region
杭州地区大气气溶胶光学特性高光谱研究

The ground-based remote sensing is one of important approach on observation of aerosol optical depth.In this study,the aerosol optical characteristics of Hangzhou region had measured using ASDspectrometer.The spatial-temporal distribution and change of aerosol optical depth,turbidity coefficient,wavelength exponent and their interrelations were analyzed,and combined with the synchronous data of Sunphotometer CE-318 made an accuracy validation.Our results indicate that the aerosol optical depth is higher in winter than in summer of Hangzhou,as well as the diurnal variation of aerosol optical characteristics is distinct obviously.The spatial patterns of aerosol optical depth are various in different region of Hangzhou.The turbidity coefficient and wavelength exponent distribute mainly from 0.02 to 0.2 and 0.2 to 2.6 respectively.The results also show that the correlation between the aerosol optical depth and turbidity coefficient is positive,while the correlation between aerosol optical depth and wavelength exponent is negative.It is a useful approaches that using ASD Spectrometer to monitor aerosol optical characteristics.