OZONE LOSS INSIDE THE NORTHERN POLAR VORTEX DURING THE 1991-1992 WINTER

被引:99
作者
PROFFITT, MH
AIKIN, K
MARGITAN, JJ
LOEWENSTEIN, M
PODOLSKE, JR
WEAVER, A
CHAN, KR
FAST, H
ELKINS, JW
机构
[1] UNIV COLORADO,NOAA,COOPERAT INST RES ENVIRONM SCI,BOULDER,CO 80309
[2] JET PROP LAB,PASADENA,CA 91109
[3] ATMOSPHER ENVIRONM SERV,DOWNSVIEW M3H 5T4,ON,CANADA
[4] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035
[5] NOAA,CLIMATE MONITORING & DIAGNOST LAB,BOULDER,CO 80303
关键词
D O I
10.1126/science.261.5125.1150
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
Measurements made in the outer ring of the northern polar vortex from October 1991 through March 1992 reveal an altitude-dependent change in ozone, with a decrease at the bottom of the vortex and a substantial increase at the highest altitudes accessible to measurement. The increase is the result of ozone-rich air entering the vortex, and the decrease reflects ozone loss accumulated after the descent of the air through high concentrations of reactive chlorine. The depleted air that is released out of the bottom of the vortex is sufficient to significantly reduce column ozone at mid-latitudes.
引用
收藏
页码:1150 / 1154
页数:5
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