A global inventory of stratospheric fluorine in 2004 based on Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) measurements
A global inventory of stratospheric fluorine in 2004 based on Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) measurements
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基于大气化学实验傅里叶变换光谱仪 (ACE-FTS) 测量的 2004 年全球平流层氟清单
DOI：
10.1029/2006jd007395
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发表时间：
2006
影响因子：
--
通讯作者：
P. Duchatelet
中科院分区：
文献类型：
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作者：
R. Nassar;P. Bernath;C. Boone;S. McLeod;R. Skelton;K. Walker;C. Rinsland;P. Duchatelet
[1]利用大气化学实验傅里叶变换光谱仪(ACE-FTS)对HF、COF2、COClF、CF4、CCl3F(CFC-11)、CCl2F2(CFC-12)、CHClF2(HCFC-22)、CCl2FCClF2(CFC-113)、CH3CClF2(HCFC-142b)、CH2FCF3(HFC-134a)和SF6的测量，测定了平流层中的总氟(FTOT)。在这项工作之前，还没有从星载测量中检索到HFC-134a(CH2FCF3)。对这些物种的测量得到了模型数据的补充，以扩大剖面的海拔范围，并得到了15种次要氟物种的估计。使用这些数据，在五个纬度区域(北纬60-82度、北纬30-60度、北纬30-30度、北纬30-60度和北纬60-82度)确定了不同的氟预算，如有可能，取2004年2月至2005年1月期间(含)的平均值。各纬度带平流层FTOT廓线接近线性，各纬度带平流层FTOT平均值为2.50-2.59 ppbv(1S精度0.04-0.07 ppbv，估计精度0.15 ppbv)。平均FTOT值最高出现在热带地区，这与平流层氟含量的增加和平流层平均环流形势是定性一致的。
[1] Total fluorine (FTOT) in the stratosphere has been determined using Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) measurements of HF, COF2, COClF, CF4, CCl3F (CFC-11), CCl2F2 (CFC-12), CHClF2 (HCFC-22), CCl2FCClF2 (CFC-113), CH3CClF2 (HCFC-142b), CH2FCF3 (HFC-134a), and SF6. The retrieval of HFC-134a (CH2FCF3) from spaceborne measurements had not been carried out prior to this work. Measurements of these species have been supplemented by data from models to extend the altitude range of the profiles and have also been complemented by estimates of 15 minor fluorine species. Using these data, separate fluorine budgets were determined in five latitude zones (60–82N, 30–60N, 30S–30N, 30–60S, and 60–82S) by averaging over the period of February 2004 to January 2005 inclusive, when possible. Stratospheric FTOT profiles in each latitude zone are nearly linear, with mean stratospheric FTOT values ranging from 2.50 to 2.59 ppbv (with a 1s precision of 0.04–0.07 ppbv and an estimated accuracy of 0.15 ppbv) for each zone. The highest mean FTOT value occurred in the tropics, which is qualitatively consistent with increasing levels of stratospheric fluorine and the mean stratospheric circulation pattern.