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The first satellite measurements of HFC-125 by the ACE-FTS: Long-term trends and distribution in the Earth’s upper troposphere and lower stratosphere
Journal of Quantitative Spectroscopy and Radiative Transfer ( IF 2.3 ) Pub Date : 2024-10-16 , DOI: 10.1016/j.jqsrt.2024.109218
R. Dodangodage, P.F. Bernath, C. Boone, J.J. Harrison, M. Lecours, M. Schmidt, S.A. Montzka, I. Vimont, M. Crotwell

HFC-125 (CF3CHF2, pentafluoroethane) volume mixing ratios (VMRs) have been determined for the first time using infrared absorption spectra from the Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) from 2004 to 2024. These VMRs provide global altitude-latitude VMR distributions. A VMR time series for HFC-125 has also been calculated and compared to values from in situ discrete flask measurements conducted by the National Oceanic and Atmospheric Administration Earth System Research Laboratory. The abundance of HFC-125 is currently experiencing exponential growth. ACE data shows a growth rate of 3.47 ± 0.05 ppt/year in the past six years.

中文翻译:


ACE-FTS 对 HFC-125 的首次卫星测量:地球对流层上部和平流层下部的长期趋势和分布



HFC-125(CF3CHF2,五氟乙烷)体积混合比 (VMR) 首次使用 2004 年至 2024 年大气化学实验傅里叶变换光谱仪 (ACE-FTS) 的红外吸收光谱确定。这些 VMR 提供全球海拔-纬度 VMR 分布。还计算了 HFC-125 的 VMR 时间序列,并与美国国家海洋和大气管理局地球系统研究实验室进行的原位离散烧瓶测量的值进行了比较。HFC-125 的丰度目前正在呈指数级增长。ACE 数据显示,过去六年的增长率为 3.47 ± 0.05 ppt/年。
更新日期:2024-10-16
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