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Multi-year investigations of aerosol layer using lidar measurements at Chung-Li, Taiwan

Chiang, CW and Das, SK and Lin, CY and Nee, JB and Sun, SH and Chiang, HW and Yu, MJ and Zhang, ST (2012) Multi-year investigations of aerosol layer using lidar measurements at Chung-Li, Taiwan. Journal of Atmospheric and Solar-Terrestrial Physics, 89. pp. 40-47.

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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.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: Bulk Richardson number; Ground-based lidars; Lidar measurements; Mass concentration; Positive correlations; Statistical interpretation; Temperature inversions; Tropospheric aerosols, Atmospheric temperature; Climatology; Lithium; Optical radar; Troposphere, Aerosols
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 10 Jun 2014 07:14
Last Modified: 10 Jun 2014 07:14
URI: http://moeseprints.incois.gov.in/id/eprint/405

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