Uptake of nitric acid on ice representative of cirrus clouds at tropospheric temperatures

被引：0
|
作者：
Tolbert, M [1 ]
Hudson, P [1 ]
Shilling, J [1 ]
Toon, OB [1 ]
机构：
[1] Univ Colorado, CIRES, Boulder, CO 80309 USA
来源：
FOURTH CONFERENCE ON ATMOSPHERIC CHEMISTRY: URBAN, REGIONAL AND GLOBAL SCALE IMPACTS OF AIR POLLUTANTS | 2002年
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中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The uptake of nitric acid by thin ice films was studied using a Knudsen cell flow reactor and FTIR-reflection absorption spectroscopy (FTIR-RAS). Equilibrium coverages and initial uptake efficiencies for HNO3 on ice were determined over the temperature range T = 209 - 220 K as a function of nitric acid partial pressure. The coverage and uptake efficiency data can be used to predict the expected HNO3 coverage on cirrus cloud particles under a variety of conditions.
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页码：238 / 239
页数：2
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