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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:06 |
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Conference: Bucharest University Faculty of Physics 2010 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Optical properties of the different cloud types
Authors:
M. Georgescu, N. Barbu and Ioana Ungureanu
Affiliation:
University of Bucharest, Faculty of Physics, P.O.BOX MG-11, Bucharest, Romania
E-mail
mugurpipo@yahoo.com
Keywords:
clouds, radiative forcing, albedo
Abstract:
The Earth’s cloudiness is associated with a large spectrum of cloud types, ranging from low-level boundary-layer clouds to deep convective clouds and anvils. The study of clouds, how they are generated and their characteristics, play a key role in the understanding of Earth’s radiation budget. Optical properties of the both particulate atmospheric constituents, especially aerosol particles and clouds, affect local radiative forcing, the radiation balance of the earth, and thus the climate. Present work assesses the cloud albedo and associated indirect forcing for two different types of clouds, stratus and cumulus, clean and polluted. The study shows that cloud radiative properties and indirect forcing are sensitive to cloud microphysical properties such as droplet concentrations and effective radius and macrophysical aspects as the geometrical thickness. Thus, one note the dependence of on the both geometrical thickness and the type of clouds.
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