Intensities and self-broadening coefficients of the strongest water vapour lines in the 2.7 and 6.25 µm absorption bands
Intensities and self-broadening coefficients of the strongest water vapour lines in the 2.7 and 6.25 µm absorption bands
复制标题
2.7 和 6.25 µm 吸收带中最强水蒸气谱线的强度和自展宽系数
DOI：
10.1016/j.jqsrt.2016.02.001
复制
发表时间：
2016
影响因子：
2.3
通讯作者：
Ptashnik I
中科院分区：
文献类型：
--
作者：
Ptashnik I
给出了室温下1400-1840 cm−1和3440-3970 cm^-1谱区约460条最强水汽谱线的强度和自展宽系数，这些谱线是用5 mm光程长池进行独特测量得到的。将提取的谱线参数与HITRAN数据库VER中的谱线参数进行比较。2008年和2012年，以及最近的从头计算。反演的强度和半宽度与HITRAN-2012的结果基本一致。最大系统差不超过4%的强度(1600 cm^-1}带)和7%的自展宽系数(3600 cm-1带)。然而，对于许多行，检测到与HITRAN-2012数据的重大不一致，超过了检索的平均不确定性。此外，我们还将2005年报道的5300 cm~(-1)(1.9μm)波段的水汽谱线参数与HITRAN-2012的水汽谱线参数进行了比较，两者的强度和半宽平均相差4-5%。
Intensities and self-broadening coefficients are presented for about 460 of the strongest water vapour lines in the spectral regions 1400–1840 cm−1 and 3440–3970 cm^{-1} at room temperature, obtained from rather unique measurements using a 5-mm-path-length cell. The retrieved spectral line parameters are compared with those in the HITRAN database ver. 2008 and 2012 and with recent ab-initio calculations. Both the retrieved intensities and half-widths are on average in reasonable agreement with those in HITRAN-2012. Maximum systematic differences do not exceed 4% for intensities (1600 cm^{-1} band) and 7% for self-broadening coefficients (3600 cm^{-1} band). For many lines however significant disagreements were detected with the HITRAN-2012 data, exceeding the average uncertainty of the retrieval. In addition, water vapour line parameters for 5300 cm^{-1} (1.9 μm) band reported by us in 2005 were also compared with HITRAN-2012, and show average differences of 4–5% for both intensities and half-widths.