Publication Abstracts
Macke et al. 1998
Macke, A., P.N. Francis, G.M. McFarquhar, and S. Kinne, 1998: The role of ice particle shapes and size distributions in the single scattering properties of cirrus clouds. J. Atmos. Sci., 55, 2874-2883, doi:10.1175/1520-0469(1998)055<2874:TROIPS>2.0.CO;2.
The roles of ice particle size distributions (SDs) and particle shapes in cirrus cloud solar radiative transfer are investigated by analyzing SDs obtained from optical array probe measurements (particle sizes larger than 20 to 40 µm) during intensive field observations of the International Cirrus Experiment ICE, the European Cloud and Radiation Experiment EUCREX, the First ISCCP Regional Experiment FIRE II, and the Central Equatorial Pacific Experiment, CEPEX. It is found that the cloud volume extinction coefficient is more strongly correlated with the total number density than with the effective particle size. Distribution-averaged mean single scattering properties are calculated for hexagonal columns, hexagonal plates, and polycrystals at a non-absorbing (0.5 µm), moderately absorbing (1.6 µm), and strongly absorbing (3.0 µm) wavelength. At 0.5 µm (1.6 µm) [3.0 µm], the spread in the resulting mean asymmetry parameters due to different SDs is smaller than (comparable to) [smaller than] the difference caused by applying different particle shapes to these distributions. From a broadband solar radiative transfer point of view it appears more important to use the correct particle shapes than to average over the correct size distributions.
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BibTeX Citation
@article{ma07000g,
author={Macke, A. and Francis, P. N. and McFarquhar, G. M. and Kinne, S.},
title={The role of ice particle shapes and size distributions in the single scattering properties of cirrus clouds},
year={1998},
journal={Journal of the Atmospheric Sciences},
volume={55},
pages={2874--2883},
doi={10.1175/1520-0469(1998)055%3C2874%3ATROIPS%3E2.0.CO;2},
}
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RIS Citation
TY - JOUR ID - ma07000g AU - Macke, A. AU - Francis, P. N. AU - McFarquhar, G. M. AU - Kinne, S. PY - 1998 TI - The role of ice particle shapes and size distributions in the single scattering properties of cirrus clouds JA - J. Atmos. Sci. JO - Journal of the Atmospheric Sciences VL - 55 SP - 2874 EP - 2883 DO - 10.1175/1520-0469(1998)055%3C2874%3ATROIPS%3E2.0.CO;2 ER -
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