Comment on "Radiative forcings for 28 potential Archean greenhouse gases" by Byrne and Goldblatt (2014)
Comment on "Radiative forcings for 28 potential Archean greenhouse gases" by Byrne and Goldblatt (2014)
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Byrne 和 Goldblatt 对“28 种潜在太古宙温室气体的辐射强迫”的评论 (2014)
DOI：
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Sams
中科院分区：
文献类型：
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作者：
R. Kochanov;I. Gordon;L. Rothman;S. Sharpe;T. Johnson;R. Sams
抽象的。在伯恩和戈德布拉特最近的一篇文章《28种潜在太古代温室气体的辐射强迫》中，克里姆说。过去时。10,1779-1801(2014)，作者利用HITRAN2012光谱数据库评估了28个太古宙气体的辐射强迫。作为评估这些气体在选定光谱区域(50-1800 cm−1)的光谱状态的一部分，将由HITRAN逐线参数产生的截面与以中等分辨率记录的PNNL实验截面数据库的截面进行了比较。作者认为，对于NO2、HNO3、H_2O_2、HCOOH、C_2H_4、CH_3OH和CH_3Br，数据库之间存在很大或有时严重的不一致。在这项工作中，我们表明，对于这八种气体中的三种，两个数据库之间确实存在着适度的差异，并解释了差异的根源。对于其他五种气体，分歧与作者建议的规模相去甚远，同时我们解释了确实存在的一些差异。总而言之，HITRAN和PNNL数据库之间的协议非常好，尽管不是完美的。如果存在感兴趣的波段/波长的HITRAN数据，则差异通常不超过10%。看来，分子相关的错误组合已经影响了作者的结论。至少在一种情况下，他们似乎没有从PNNL中取出正确的文件(用N2O4(二聚体)+NO2代替单体)。最后，在BG中没有正确地计算来自HITRAN(没有PNNL对应的)的HO2的截面，而在HF的情况下，基于实验PNNL光谱中外来特征或噪声特征的混淆，给出了误导性的讨论。
Abstract. In the recent article by Byrne and Goldblatt, "Radiative forcing for 28 potential Archean greenhouse gases", Clim. Past. 10, 1779–1801 (2014), the authors employ the HITRAN2012 spectroscopic database to evaluate the radiative forcing of 28 Archean gases. As part of the evaluation of the status of the spectroscopy of these gases in the selected spectral region (50–1800 cm−1), the cross sections generated from the HITRAN line-by-line parameters were compared with those of the PNNL database of experimental cross sections recorded at moderate resolution. The authors claimed that for NO2, HNO3, H2CO, H2O2, HCOOH, C2H4, CH3OH and CH3Br there exist large or sometimes severe disagreements between the databases. In this work we show that for only three of these eight gases a modest discrepancy does exist between the two databases and we explain the origin of the differences. For the other five gases, the disagreements are not nearly at the scale suggested by the authors, while we explain some of the differences that do exist. In summary, the agreement between the HITRAN and PNNL databases is very good, although not perfect. Typically differences do not exceed 10 %, provided that HITRAN data exist for the bands/wavelengths of interest. It appears that a molecule-dependent combination of errors has affected the conclusions of the authors. In at least one case it appears that they did not take the correct file from PNNL (N2O4 (dimer)+ NO2 was used in place of the monomer). Finally, cross sections of HO2 from HITRAN (which do not have a PNNL counterpart) were not calculated correctly in BG, while in the case of HF misleading discussion was presented there based on the confusion by foreign or noise features in the experimental PNNL spectra.
DOI：
10.1016/j.jqsrt.2013.07.002
发表时间：
2013-11-01
影响因子：
2.3
作者：
Rothman, L. S.;Gordon, I. E.;Wagner, G.
通讯作者：
Wagner, G.