INFRARED-ABSORPTION BY VOLCANIC STRATOSPHERIC AEROSOLS OBSERVED BY ISAMS

被引：46

作者：

GRAINGER, RG ^{[1
]}

LAMBERT, A ^{[1
]}

TAYLOR, FW ^{[1
]}

REMEDIOS, JJ ^{[1
]}

RODGERS, CD ^{[1
]}

CORNEY, M ^{[1
]}

KERRIDGE, BJ ^{[1
]}

机构：

[1] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

GEOPHYSICAL RESEARCH LETTERS | 1993年 / 20卷 / 12期

关键词：

D O I：

10.1029/93GL00823

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Improved Stratospheric and Mesospheric Sounder (ISAMS) aboard the Upper Atmosphere Research Satellite (UARS) senses in 14 wideband channels in the infrared. The absorption by the Mt. Pinatubo aerosol cloud for nine of the channels was averaged over heights from 20 km to 30 km for a 60-degrees latitude band centred on the Equator. The absorption spectrum for sulphuric acid-water aerosols was calculated for wavelengths from 4 mum to 17 mum and investigated as a function of the particle size distribution and the particle composition. The infrared spectrum is shown to be more sensitive to changes in particle composition than to drop size; the ISAMS results are consistent with drops composed of a 59% to 77% solution of sulphuric acid in water.

引用

页码：1283 / 1286

页数：4

共 19 条

[1] GLOBAL TRACKING OF THE SO2 CLOUDS FROM THE JUNE, 1991 MOUNT-PINATUBO ERUPTIONS [J].