Geoengineering by cloud seeding: influence on sea ice and climate system

被引：85

作者：

Rasch, Philip J. ^{[1
]}

Latham, John ^{[2
,3
]}

Chen, Chih-Chieh ^{[2
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Natl Ctr Atmospher Res, Boulder, CO 80303 USA

[3] Univ Manchester, SEAES, Manchester M60 1QD, Lancs, England

来源：

ENVIRONMENTAL RESEARCH LETTERS | 2009年 / 4卷 / 04期

关键词：

geo-engineering; climate change; global warming; cloud seeding; aerosol indirect effect; COMMUNITY ATMOSPHERE MODEL; MICROPHYSICS SCHEME; STRATIFORM CLOUDS; AEROSOL; STRATOCUMULUS; CONDENSATION; CIRCULATION; TRANSPORT; IMPACTS; ALBEDO;

D O I：

10.1088/1748-9326/4/4/045112

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

General circulation model computations using a fully coupled ocean-atmosphere model indicate that increasing cloud reflectivity by seeding maritime boundary layer clouds with particles made from seawater may compensate for some of the effects on climate of increasing greenhouse gas concentrations. The chosen seeding strategy (one of many possible scenarios) can restore global averages of temperature, precipitation and sea ice to present day values, but not simultaneously. The response varies nonlinearly with the extent of seeding, and geoengineering generates local changes to important climatic features. The global tradeoffs of restoring ice cover, and cooling the planet, must be assessed alongside the local changes to climate features.

引用

页数：8

共 38 条

[1] The impact of humidity above stratiform clouds on indirect aerosol climate forcing [J].