A new theory of heterogeneous ice nucleation for application in cloud and climate models

被引：57

作者：

Khvorostyanov, VI ^{[1
]}

Curry, JA

机构：

[1] Univ Utah, Dept Meteorol, Salt Lake City, UT 84112 USA

[2] Univ Colorado, Dept Aerosp Engn Sci, Program Atmospher Sci, Boulder, CO 80309 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2000年 / 27卷 / 24期

关键词：

D O I：

10.1029/1999GL011211

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A new formulation is presented of the thermodynamical theory of heterogeneous ice crystal nucleation in clouds by freezing. This theory unifies and explains the empirical ice nuclei dependence on temperature and supersaturation, predicts crystal formation via condensation-freezing at a subsaturation over water. The theory also explains observations of high nucleation rates and crystal concentrations at warm (-5 > -12 degreesC) temperatures when the splintering mechanism may be not effective. This theory can be applied to parameterizations for use in cloud and climate models.

引用

页码：4081 / 4084

页数：4

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