Global distribution of upper tropospheric formic acid from the ACE-FTS
Global distribution of upper tropospheric formic acid from the ACE-FTS
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DOI：
10.5194/acp-9-8039-2009
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发表时间：
2009-10
影响因子：
6.3
通讯作者：
G. G. Abad-G.;P. Bernath;C. Boone;S. McLeod;G. Manney;G. Toon
中科院分区：
文献类型：
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作者：
G. G. Abad-G.;P. Bernath;C. Boone;S. McLeod;G. Manney;G. Toon
我们提出了第一个近全球上层对流层分布的甲酸（HCOOH）从空间使用太阳掩星测量傅里叶变换光谱仪（FTS）上的大气化学实验（ACE）卫星。利用Vander Auwera等人（2007）和Perrin和Vander Auwera（2007）最近发表的一组新的甲酸光谱线参数，我们反演了2004年2月至2007年9月ACE-FTS观测的5 km至对流层顶之间的HCOOH浓度。我们观察到一个显着的季节性依赖HCOOH浓度相关的植被生长和生物量燃烧。我们估计的排放比率为0.0051±0.0015的HCOOH相对于CO的热带南美洲火灾使用选定的一组数据为2004年9月。结果从球载MkIV傅里叶变换光谱仪也提出并与ACE测量进行比较。
We present the first near global upper tropospheric distribution of formic acid (HCOOH) observed from space using solar occultation measurements from the Fourier transform spectrometer (FTS) on board the Atmospheric Chemistry Experiment (ACE) satellite. Using a new set of spectroscopic line parameters recently published for formic acid by Vander Auwera et al. (2007) and Perrin and Vander Auwera (2007), we have retrieved the concentrations of HCOOH between 5 km and the tropopause for ACE-FTS observations from February 2004 to September 2007. We observe a significant seasonal dependence for the HCOOH concentrations related to vegetation growth and biomass burning. We estimate an emission ratio of 0.0051±0.0015 for HCOOH relative to CO for tropical South American fires using a selected set of data for September 2004. Results from the balloon-borne MkIV Fourier transform spectrometer are also presented and compared with the ACE measurements.