Theoretical Studies of Spectroscopic Line Mixing in Remote Sensing Applications with Theoretical Support to Improve the Accuracy of the HITRAN H2O Database

遥感应用中谱线混合的理论研究为提高 HITRAN H2O 数据库精度提供理论支持

• 批准号: 1501297
• 负责人: Qiancheng Ma
• 金额: $ 26.75万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-15 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1501297&HistoricalAwards=false
• 关键词: Theoretical; Studies; Spectroscopic; Line; Mixing

The HITRAN (high-resolution transmission) molecular absorption database currently contains some 7.4 million spectral lines of some 47 different molecular species (https://www.cfa.harvard.edu/hitran/ ) As such, along with appropriate computer codes, it can be used to accurately calculate the spectroscopic properties (transmission and emission) of light in the terrestrial (and other planetary) atmospheres. The HITRAN database is widely used by thousands of scientists and engineers, tackling a large range of scientific problems and interests. This project has two stated objectives namely : (1) continuing studying theoretical and computational treatment of line mixing for molecules that are important in remote sensing and spectroscopy, and , (2) providing theoretical support for improving the accuracy of the HITRAN database, in particular calculation of H2O lineshapes. The first objective is based on prior NSF support to develop a formalism capable of studying line mixing from interactions between a molecular absorber and molecular perturbers. The second objective represents continuing effort to improve the accuracy of spectroscopic parameters of H2O lineshapes in spectral databases, specifically HITRAN, and related compilations.

Hitran（高分辨率传播）分子吸收数据库目前包含约740万个不同分子物种（https：//www.cfa.harvard.edu/hitran/），因此，与适当的计算机代码相同，可以准确地计算出光谱（和其他计算机）的pransirials and Empertial（emsistiral of Emissiral of Spectroscic Properies（emissife and Emiscy of）（Empertroscop）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）（Emsistry）的次数。气氛。 Hitran数据库被成千上万的科学家和工程师广泛使用，解决了许多科学问题和兴趣。 该项目有两个陈述的目标：（1）继续研究在遥感和光谱中很重要的分子的线路混合的理论和计算处理，以及（2）提供理论支持以提高HITRAN数据库的准确性，特别是H2O LinesHapes的计算。 第一个目标是基于先前的NSF支持，以开发出一种形式主义，该形式主义能够研究分子吸收剂和分子垂直器之间的相互作用的线混合。第二个目标代表了提高光谱数据库中H2O线形光谱参数的准确性的持续努力，特别是Hitran和相关的汇编。

项目成果

The relaxation matrix for symmetric tops with inversion symmetry. II. Line mixing effects in the ν 1 band of NH 3

具有反演对称性的对称顶的松弛矩阵。

• DOI: 10.1063/1.4952996
• 发表时间: 2016
• 期刊: The Journal of Chemical Physics
• 作者: Boulet, C.;Ma, Q.
• 通讯作者: Ma, Q.

The relaxation matrix for symmetric tops with inversion symmetry. I. Effects of line coupling on self-broadened ν 1 and pure rotational bands of NH 3

具有反演对称性的对称顶的松弛矩阵。

• DOI: 10.1063/1.4952995
• 发表时间: 2016
• 期刊: The Journal of Chemical Physics
• 作者: Ma, Q.;Boulet, C.
• 通讯作者: Boulet, C.