CLIMATE FORCING BY STRATOSPHERIC AEROSOLS

被引：201

作者：

LACIS, A

HANSEN, J

SATO, M

机构：

[1] Nasa, Goddard Space Flight Center, Goddard Institute for Space Studies, New York

来源：

GEOPHYSICAL RESEARCH LETTERS | 1992年 / 19卷 / 15期

关键词：

D O I：

10.1029/92GL01620

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We illustrate how climate forcing by stratospheric aerosols depends on aerosol properties. The climate forcing is a function of aerosol size distribution, but the size dependence can be described well by a single parameter: the area-weighted mean radius, r(eff). If r(eff) is greater than about 2-mu-m, the global average greenhouse effect of the aerosols exceeds the albedo effect, causing a surface heating. The aerosol climate forcing is less sensitive to other characteristics of the size distribution, the aerosol composition, and the altitude of the aerosols. Thus stratospheric aerosol forcing can be defined accurately from measurements of aerosol extinction over a broad wavelength range.

引用

页码：1607 / 1610

页数：4

共 24 条

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