Saharan dust storms and indirect aerosol effects on clouds: CRYSTAL-FACE results

被引:284
作者
Sassen, K
DeMott, PJ
Prospero, JM
Poellot, MR
机构
[1] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA
[2] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA
[3] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA
[4] Univ N Dakota, Dept Atmospher Sci, Grand Forks, ND 58201 USA
关键词
D O I
10.1029/2003GL017371
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A recent field experiment in southern Florida using aircraft and polarization lidar shows that mineral dust particles transported from Saharan Africa are effective ice nuclei, apparently capable of glaciating a mildly supercooled (-5.2degrees to -8.8degreesC) altocumulus cloud. These results are similar to those from Asian dust storm particles observed over the western US, suggesting that in the northern hemisphere major dust storms play a role in modulating climate through the indirect aerosol effect on cloud properties. If this is true of desert dusts in general, then even minor aeolian emissions could have an effect on regional weather and climate.
引用
收藏
页码:35 / 1
页数:4
相关论文
共 24 条
[1]  
[Anonymous], 2003, GEOPHYS RES LETT
[2]   TRACE-ELEMENTS IN THE ATMOSPHERE OVER THE NORTH-ATLANTIC [J].
ARIMOTO, R ;
DUCE, RA ;
RAY, BJ ;
ELLIS, WG ;
CULLEN, JD ;
MERRILL, JT .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1995, 100 (D1) :1199-1213
[3]  
HOBBS PV, 1985, J ATMOS SCI, V42, P2523, DOI 10.1175/1520-0469(1985)042<2523:IPCIC>2.0.CO
[4]  
2
[5]   Characterization of tropospheric aerosols over the oceans with the NOAA advanced very high resolution radiometer optical thickness operational product [J].
Husar, RB ;
Prospero, JM ;
Stowe, LL .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D14) :16889-16909
[6]  
*IPCC, 2001, CLIM CHANG SCI AN SO
[7]  
ISONO K, 1959, J METEOR SOC JAPAN, V37, P211, DOI DOI 10.2151/JMSJ1923.37.6_211
[8]   A satellite view of aerosols in the climate system [J].
Kaufman, YJ ;
Tanré, D ;
Boucher, O .
NATURE, 2002, 419 (6903) :215-223
[9]  
LIU P, 2002, GEOPHSY RES LETT, V29
[10]   Ground-based network observation of Asian dust events of April 1998 in east Asia [J].
Murayama, T ;
Sugimoto, N ;
Uno, I ;
Kinoshita, K ;
Aoki, K ;
Hagiwara, N ;
Liu, ZY ;
Matsui, I ;
Sakai, T ;
Shibata, T ;
Arao, K ;
Sohn, BJ ;
Won, JG ;
Yoon, SC ;
Li, T ;
Zhou, J ;
Hu, HL ;
Abo, M ;
Iokibe, K ;
Koga, R ;
Iwasaka, Y .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2001, 106 (D16) :18345-18359