ENHANCEMENTS IN BIOLOGICALLY EFFECTIVE ULTRAVIOLET-RADIATION FOLLOWING VOLCANIC-ERUPTIONS

被引：34
|
作者：
VOGELMANN, AM [1 ]
ACKERMAN, TP [1 ]
TURCO, RP [1 ]
机构：
[1] UNIV CALIF LOS ANGELES,DEPT ATMOSPHER SCI,LOS ANGELES,CA 90024
来源：
NATURE | 1992年 / 359卷 / 6390期
关键词：
D O I：
10.1038/359047a0
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：
AEROSOLS injected into the stratosphere by large volcanic eruptions may induce ozone destruction through processes including heterogeneous chemical reactions. The effect of ozone reductions on surface ultraviolet irradiation is not obvious, however, because aerosols also increase the reflection of sunlight. Here we use a radiative transfer model to estimate the changes in biologically effective ultraviolet radiation (UV-BE) at the Earth's surface produced by the El Chichon (1982) and Mount Pinatubo (1991) eruptions. We find that in both cases surface UV-BE intensity can increase because the effect of ozone depletion outweighs the increased scattering.
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页码：47 / 49
页数：3
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