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情况

IF 2.3 3区物理与天体物理 Q2 OPTICS Journal of Quantitative Spectroscopy & Radiative Transfer 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

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引用次数: 0

摘要

利用大气化学实验傅立叶变换光谱仪（ACE-FTS）2004 年至 2024 年的红外吸收光谱，首次测定了 HFC-125（CF3CHF2，五氟乙烷）的体积混合比（VMRs）。这些 VMR 提供了全球高度-纬度 VMR 分布。此外，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现场离散烧瓶测量值进行了比较。HFC-125 的丰度目前正呈指数增长。ACE 数据显示，过去六年的增长率为 3.47 ± 0.05 ppt/年。

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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

HFC-125 (CF

_{3}

CHF

_{2}

, 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.

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来源期刊

Journal of Quantitative Spectroscopy & Radiative Transfer 物理-光谱学

CiteScore

5.30

自引率

21.70%

发文量

273

审稿时长

58 days

期刊介绍： Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer: - Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas. - Spectral lineshape studies including models and computational algorithms. - Atmospheric spectroscopy. - Theoretical and experimental aspects of light scattering. - Application of light scattering in particle characterization and remote sensing. - Application of light scattering in biological sciences and medicine. - Radiative transfer in absorbing, emitting, and scattering media. - Radiative transfer in stochastic media.