Mountaintop and radar measurements of anthropogenic aerosol effects on snow growth and snowfall rate

被引:143
作者
Borys, RD [1 ]
Lowenthal, DH
Cohn, SA
Brown, WOJ
机构
[1] Desert Res Inst, Storm Peak Lab, Div Atmospher Sci, Reno, NV 89512 USA
[2] Natl Ctr Atmospher Res, Atmospher Technol Div, Boulder, CO 80307 USA
关键词
D O I
10.1029/2002GL016855
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A field campaign designed to investigate the second indirect aerosol effect (reduction of precipitation by anthropogenic aerosols which produce more numerous and smaller cloud droplets) was conducted during winter in the northern Rocky Mountains of Colorado. Combining remote sensing and in-situ mountain-top measurements it was possible to show higher concentrations of anthropogenic aerosols (similar to1 mug m(-3)) altered the microphysics of the lower orographic feeder cloud to the extent that the snow particle rime growth process was inhibited, or completely shut off, resulting in lower snow water equivalent precipitation rates.
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页数:4
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