Measurement of the effect of Amazon smoke on inhibition of cloud formation

被引：528
作者：
Koren, I [1 ]
Kaufman, YJ
Remer, LA
Martins, JV
机构：
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[2] CNR, Washington, DC 20001 USA
[3] Univ Maryland, Joint Ctr Earth Syst Technol, Baltimore, MD 21250 USA
来源：
SCIENCE | 2004年 / 303卷 / 5662期
关键词：
D O I：
10.1126/science.1089424
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Urban air pollution and smoke from. res have been modeled to reduce cloud formation by absorbing sunlight, thereby cooling the surface and heating the atmosphere. Satellite data over the Amazon region during the biomass burning season showed that scattered cumulus cloud cover was reduced from 38% in clean conditions to 0% for heavy smoke ( optical depth of 1.3). This response to the smoke radiative effect reverses the regional smoke instantaneous forcing of climate from - 28 watts per square meter in cloud-free conditions to +8 watts per square meter once the reduction of cloud cover is accounted for.
引用
收藏
页码：1342 / 1345
页数：4
相关论文
共 34 条
[1]   Reduction of tropical cloudiness by soot [J].
Ackerman, AS ;
Toon, OB ;
Stevens, DE ;
Heymsfield, AJ ;
Ramanathan, V ;
Welton, EJ .
SCIENCE, 2000, 288 (5468) :1042-1047
[2]   AEROSOLS, CLOUD MICROPHYSICS, AND FRACTIONAL CLOUDINESS [J].
ALBRECHT, BA .
SCIENCE, 1989, 245 (4923) :1227-1230
[3]   The paradoxical increase of Mediterranean extreme daily rainfall in spite of decrease in total values [J].
Alpert, P ;
Ben-Gai, T ;
Baharad, A ;
Benjamini, Y ;
Yekutieli, D ;
Colacino, M ;
Diodato, L ;
Ramis, C ;
Homar, V ;
Romero, R ;
Michaelides, S ;
Manes, A .
GEOPHYSICAL RESEARCH LETTERS, 2002, 29 (11) :31-1
[4]  
CHOU MD, 1991, J CLIMATE, V4, P424, DOI 10.1175/1520-0442(1991)004<0424:IRPINC>2.0.CO
[5]  
2
[6]  
CHOU MD, 1992, J ATMOS SCI, V49, P762, DOI 10.1175/1520-0469(1992)049<0762:ASRMFU>2.0.CO
[7]  
2
[8]   Impact of atmospheric aerosol light scattering and absorption on terrestrial net primary productivity [J].
Cohan, DS ;
Xu, J ;
Greenwald, R ;
Bergin, MH ;
Chameides, WL .
GLOBAL BIOGEOCHEMICAL CYCLES, 2002, 16 (04)
[9]  
Dubovik O, 2002, J ATMOS SCI, V59, P590, DOI 10.1175/1520-0469(2002)059<0590:VOAAOP>2.0.CO
[10]  
2
1234