IN-SITU OBSERVATIONS OF AEROSOL AND CHLORINE MONOXIDE AFTER THE 1991 ERUPTION OF MOUNT-PINATUBO - EFFECT OF REACTIONS ON SULFATE AEROSOL

被引:74
作者
WILSON, JC
JONSSON, HH
BROCK, CA
TOOHEY, DW
AVALLONE, LM
BAUMGARDNER, D
DYE, JE
POOLE, LR
WOODS, DC
DECOURSEY, RJ
OSBORN, M
PITTS, MC
KELLY, KK
CHAN, KR
FERRY, GV
LOEWENSTEIN, M
PODOLSKE, JR
WEAVER, A
机构
[1] UNIV CALIF IRVINE,DEPT GEOSCI,IRVINE,CA 92717
[2] HARVARD UNIV,DEPT CHEM,CAMBRIDGE,MA 02138
[3] NATL CTR ATMOSPHER RES,BOULDER,CO 80307
[4] NASA,LANGLEY RES CTR,HAMPTON,VA 23681
[5] SCI APPLICAT INT CORP,HAMPTON,VA 23666
[6] NOAA,AERON LAB,BOULDER,CO 80303
[7] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035
关键词
D O I
10.1126/science.261.5125.1140
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
Highly resolved aerosol size distributions measured from high-altitude aircraft can be used to describe the effect of the 1991 eruption of Mount Pinatubo on the stratospheric aerosol. In some air masses, aerosol mass mixing ratios increased by factors exceeding 100 and aerosol surface area concentrations increased by factors of 30 or more. Increases in aerosol surface area concentration were accompanied by increases in chlorine monoxide at mid-latitudes when confounding factors were controlled. This observation supports the assertion that reactions occurring on the aerosol can increase the fraction of stratospheric chlorine that occurs in ozone-destroying forms.
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页码:1140 / 1143
页数:4
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