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Influence of Convection and Aerosol Pollution on Ice Cloud Particle Effective RadiusSatellite observations show that ice cloud effective radius (r(sub e)) increases with ice water content (IWC) but decreases with aerosol optical thickness (AOT). Using least-squares fitting to the observed data, we obtain an analytical formula to describe the variations of r(sub e) with IWC and AOT for several regions with distinct characteristics of r(sub e) -IWC-AOT relationships. As IWC directly relates to convective strength and AOT represents aerosol loading, our empirical formula provides a means to quantify the relative roles of dynamics and aerosols in controlling r(sub e) in different geographical regions, and to establish a framework for parameterization of aerosol effects on r(sub e) in climate models.
Document ID
20120013064
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.5194/acp-11-457-2011
Authors
Jiang, J. H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Su, H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Zhai, C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Massie, S. T. (National Center for Atmospheric Research Boulder, CO, United States)
Schoeberl, M. R. (Science and Technology Corp. Washington, DC, United States)
Colarco, P. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Platnick, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gu, Y. (California Univ. Los Angeles, CA, United States)
Liou, K.-N. (California Univ. Los Angeles, CA, United States)
Date Acquired
August 26, 2013
Publication Date
January 17, 2011
Publication Information
Publication: Journal of Atmospheric Chemistry and Physics
Volume: 11
Subject Category
Meteorology And Climatology
Report/Patent Number
GSFC.JA.6385.2012
Distribution Limits
Public
Copyright
Public Use Permitted.

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