A Study of Cirrus Ice Particle Size Distribution Using TC4 Observations

被引：42

作者：

Tian, Lin ^{[2
]}

Heymsfield, Gerald M. ^{[1
]}

Heymsfield, Andrew J. ^{[3
]}

Bansemer, Aaron ^{[3
]}

Li, Lihua ^{[1
]}

Twohy, Cynthia H. ^{[4
]}

Srivastava, Ramesh C. ^{[2
,5
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[2] Univ Maryland Baltimore Cty, Goddard Earth Sci & Technol Ctr, Baltimore, MD 21228 USA

[3] Natl Ctr Atmospher Res, Boulder, CO 80307 USA

[4] Univ Oregon, Eugene, OR 97403 USA

[5] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA

来源：

JOURNAL OF THE ATMOSPHERIC SCIENCES | 2010年 / 67卷 / 01期

关键词：

RAINDROP SPECTRA; WATER-CONTENT; RADAR SYSTEM; CLOUD RADAR; PARAMETERIZATION; MIDLATITUDE; SNOW;

D O I：

10.1175/2009JAS3114.1

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

An analysis of two days of in situ observations of ice particle size spectra, in convectively generated cirrus, obtained during NASA's Tropical Composition, Cloud, and Climate Coupling (TC4) mission is presented. The observed spectra are examined for their fit to the exponential, gamma, and lognormal function distributions. Characteristic particle size and concentration density scales are determined using two (for the exponential) or three (for the gamma and lognormal functions) moments of the spectra. It is shown that transformed exponential, gamma, and lognormal distributions should collapse onto standard curves. An examination of the transformed spectra, and of deviations of the transformed spectra from the standard curves, shows that the lognormal function provides a better fit to the observed spectra.

引用

页码：195 / 216

页数：22