The W2020 database of validated experimental transitions and accurate empirical energy levels of water isotopologues, introduced in the work of Furtenbacher et al. [J. Phys. Chem. Ref. Data 49, 033101 (2020)], is updated for H₂¹⁶O and newly populated with data for H₂¹⁷O and H₂¹⁸O. The H₂¹⁷O/H₂¹⁸O spectroscopic data utilized in this study are collected from 65/87 sources, with the sources arranged into 76/99 segments, and the data in these segments yield 27 045/66 166 (mostly measured) rovibrational transitions and 5278/6865 empirical energy levels with appropriate uncertainties. Treatment and validation of the collated transitions of H₂¹⁶O, H₂¹⁷O, and H₂¹⁸O utilized the latest, XML-based version of the MARVEL (Measured Active Rotational-Vibrational Energy Levels) protocol and code, called xMARVEL. The empirical rovibrational energy levels of H₂¹⁷O and H₂¹⁸O form a complete set through 3204 cm⁻¹ and 4031 cm⁻¹, respectively. Vibrational band origins are reported for 37 and 52 states of H₂¹⁷O and H₂¹⁸O, respectively. The spectroscopic data of this study extend and improve the data collated by an International Union of Pure and Applied Chemistry Task Group in 2010 [J. Tennyson et al., J. Quant. Spectrosc. Radiat. Transfer 110, 2160 (2010)] as well as those reported in the HITRAN2016 information system. Following a minor but significant update to the W2020-H₂¹⁶O dataset, the joint analysis of the rovibrational levels for the series H₂¹⁶O, H₂¹⁷O, and H₂¹⁸O facilitated development of a consistent set of labels among these three water isotopologues and the provision of accurate predictions of yet to be observed energy levels for the minor isotopologues using the combination of xMARVEL results and accurate variational nuclear-motion calculations. To this end, 9925/8409 pseudo-experimental levels have been derived for H₂¹⁷O/H₂¹⁸O, significantly improving the coverage of accurate lines for these two minor water isotopologues up to the visible region. The W2020 database now contains almost all of the transitions, apart from those of HD¹⁶O, required for a successful spectroscopic modeling of atmospheric water vapor.

中文翻译：

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W2020验证了水同位素同位素的惯性振动实验过渡和经验能级的数据库。二。H217O和H218O，以及对H216O的更新

Furtenbacher等人的工作中引入了W2020数据库，其中包括经过验证的水同位素同位素的实验转变和准确的经验能级。[J. 物理 化学 参考 数据49，033101（2020）]，将用于h更新₂ ¹⁶ O和与数据新填充用于h ₂ ¹⁷氧，氢₂ ¹⁸ O.为H ₂ ¹⁷ O / H ^ ₂ ¹⁸本研究中使用的O光谱数据是从65/87个源中收集的，这些源分为76/99个段，这些段中的数据产生27 045/66 166（主要是测得的）振动跃迁和5278/6865经验能级具有适当的不确定性。H ₂ ¹⁶ O，H ₂ ¹⁷ O和H ₂ ¹⁸ O的整理过渡的处理和验证使用了最新的基于XML的MARVEL（测得的有效旋转振动能级）协议和代码xMARVEL。H ₂ ¹⁷ O和H ₂ ¹⁸ O的经验振动能级在3204 cm ^-1和4031 cm处形成一个完整的集合^-1。据报道，H ₂ ¹⁷ O和H ₂ ¹⁸ O分别处于37和52状态的振动带起源。这项研究的光谱数据扩展和完善了国际纯粹与应用化学联合会工作组于2010年整理的数据[J. Tennyson等。，J。Quant。光谱。辐射。转移110，2160（2010）]以及那些在HITRAN2016信息系统的报道。在对W2020-H ₂ ¹⁶ O数据集进行了微小但重要的更新之后，对H ₂ ¹⁶ O，H ₂ ¹⁷ O和H ₂ ¹⁸系列的振动水平进行了联合分析。O结合xMARVEL结果和准确的变核运动计算，促进了这三种水同位素分子之间标签的一致开发，并为未成年人的同位素能级的准确预测提供了准确的预测。为此，已经获得了H ₂ ¹⁷ O / H ₂ ¹⁸ O的9925/8409假实验能级，从而显着提高了这两个次要水同位素的精确线的覆盖范围，直至可见区域。W2020数据库现在包含除成功进行大气水蒸气光谱建模所需的HD ¹⁶ O转换外的几乎所有转换。