Abstract
Height, evolution and structure of the nocturnal aerosol layers in the lower troposphere is reported by using a ground-based lidar over Chung-Li (24.58∘N,121.10°E), Taiwan, during the period from March 2002 to December 2008. Investigation shows that the aerosol layers mainly distributed at an altitude range between 0.2 and 3km. The mean height and depth of the aerosol layer are 0.57±0.11km and 0.63±0.14km, respectively. Seasonality is observed for the depth and height of the aerosol layer. The wind shear and temperature inversion is calculated from the radiosonde data. The statistical interpretation shows a correlation between lidar-derived aerosol layer height and wind shear and also with the temperature inversion. The depth and height of aerosol layer have a positive correlation with Bulk Richardson number. The seasonal features of tropospheric aerosols and their impact on the PM10 mass concentrations are also examined.
Published Version
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