FTIR studies on lifetime prolongation of stratospheric ice particles due to NAT coating

被引：33

作者：

Biermann, UM ^{[1
]}

Crowley, JN ^{[1
]}

Huthwelker, T ^{[1
]}

Moortgat, GK ^{[1
]}

Crutzen, PJ ^{[1
]}

Peter, T ^{[1
]}

机构：

[1] Max Planck Inst Chem, D-55020 Mainz, Germany

来源：

GEOPHYSICAL RESEARCH LETTERS | 1998年 / 25卷 / 21期

关键词：

D O I：

10.1029/1998GL900040

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Fourier Transform Infra-Red (FTIR) analysis of thin ice films was performed in order to investigate the influence of Nitric Acid Trihydrate (NAT) coating on the life time of stratospheric ice particles in air subsaturated with respect to ice. Two sorts of experiments were performed in which NAT was either condensed from the gas phase onto preexisting ice films or was incorporated into growing ice films, which subsequently were subject to slow evaporation under controlled vapor pressure conditions. Neither a thermodynamically efficient sealing of the ice nor a significant kinetic slowing of its evaporation was observed. A possible alternative mechanism leading to a more efficient NAT coating is proposed.

引用

页码：3939 / 3942

页数：4

共 16 条

[1]

[Anonymous], 1978, Microphysics of Clouds and Precipitation, DOI 10.1007/978-94-009-9905-3

[2] THE LIFETIME OF LEEWAVE-INDUCED ICE PARTICLES IN THE ARCTIC STRATOSPHERE .1. BALLOONBORNE OBSERVATIONS [J].