ACE-FTS observations of acetonitrile in the lower stratosphere
ACE-FTS observations of acetonitrile in the lower stratosphere
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DOI:
10.5194/acp-13-7405-2013
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发表时间:
2013-08
影响因子:
6.3
通讯作者:
J. Harrison;P. Bernath
中科院分区:
文献类型:
--
作者:
J. Harrison;P. Bernath
Abstract. This work reports the first infrared satellite remote-sensing measurements of acetonitrile (CH 3 CN) in the Earth's atmosphere using solar occultation measurements made by the Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) between 2004 and 2011. The retrieval scheme uses new quantitative laboratory spectroscopic measurements of acetonitrile (Harrison and Bernath, 2012). Although individual ACE-FTS profile measurements are dominated by measurement noise, median profiles in 10° latitude bins show a steady decline in volume mixing ratio from ~150 ppt (parts per trillion) at 11.5 km to