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Comparison of atmospheric aerosol properties inferred from direct and remote-sensing techniques

Maheskumar, RS and Devara, PCS and Ernest Raj, P and Pandithurai, G and Dani, KK and Momin, GA (2001) Comparison of atmospheric aerosol properties inferred from direct and remote-sensing techniques. Atmospheric Environment, 35 (16). pp. 2895-2905.

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Continuous monitoring of atmospheric aerosol properties is very much essential in view of their wide variability in space and time. Both active as well as passive remote-sensing techniques are available apart from direct (in situ) methods to carry out such measurements. An attempt has been made in this paper to inter-compare aerosol features derived from the lidar (active sensor), multi-channel solar radiometer (passive sensor) and Andersen sampler (direct technique). The ground-level concentrations derived from the bistatic argon-ion lidar has been compared with those derived from the Andersen sampler. The results are found to be in fair agreement. The number-size distribution of aerosols retrieved from the multi-channel solar radiometer has been compared with the mass-size distribution derived from the Andersen sampler. The size spectra showed bi-modal distribution with accumulation mode around 0.08μm and the coarse mode around 4.0μm during the study period. Thus, the study reveals a good correspondence between the properties of aerosol particulates measured with different measurement techniques.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Uncontrolled Keywords: Argon; Environmental engineering; Particle size analysis; Radiometers, Direct (in situ) methods, Atmospheric aerosols, aerosol property; monitoring; remote sensing, aerosol; article; atmosphere; environmental monitoring; intermethod comparison; priority journal; radiation detector; remote sensing; sampler; technique
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 14 Mar 2015 04:33
Last Modified: 14 Mar 2015 04:33

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