MARFA:一种有效的逐行计算行星大气中分子吸收的工具

IF 1.9 3区 物理与天体物理 Q2 OPTICS
Mikhail Razumovskiy , Boris Fomin , Denis Astanin
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引用次数: 0

摘要

我们提出了MARFA(分子大气吸收与快速灵活分析)-一个开源的逐行工具,用于计算行星大气中的吸收系数和横截面,特别是在不确定的光谱数据和缺失连续函数的条件下。结合十网格插值技术,MARFA在计算大线截止点的远翼贡献时表现出良好的性能。该工具支持灵活的参数化,包括线形函数、机翼校正、用户定义的大气剖面,从而促进对稀疏数据集的快速灵敏度研究。光谱以约5⋅10−4 cm−1的高分辨率计算,针对具有hitran格式线数据的红外和可见光谱区域进行了优化,但可适用于具有可用线参数的其他数据集。输出要么以二进制查找表文件的形式表示,直接与辐射传输代码兼容,要么以人类可读的格式表示,用于数据分析和分发。MARFA工具以两种方式提供:通过MARFA可访问的web应用程序。用于培训和教育用途的应用程序,以及作为公共存储库中可用的开源代码,用于高级利用,开发和贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
MARFA: An effective line-by-line tool for calculating molecular absorption in planetary atmospheres
We present MARFA (Molecular atmospheric Absorption with Rapid and Flexible Analysis) – an open-source line-by-line tool for calculating absorption coefficients and cross-sections in planetary atmospheres, particularly under conditions of uncertain spectroscopic data and missing continuum functions. With incorporated eleven-grid interpolation technique MARFA shows good performance in computation of far-wing contributions for large line cut-offs. The tool supports flexible parameterization, including line shape functions, wing corrections, user-defined atmospheric profiles, thus, facilitating rapid sensitivity studies for sparse datasets. Spectra are calculated at a high-resolution of about 5104 cm−1, optimized for infrared and visible spectral regions where HITRAN-formatted line data is available, yet adaptable to other datasets with available line parameters. Output is represented either in a form of binary lookup tables files, directly compatible with radiative transfer codes or in a human-readable format for data analysis and distribution. The MARFA tool is provided in two ways: through a web application accessible at marfa.app for onboarding and educational usage, and as an open-source code available in a public repository for advanced utilization, development and contributions.
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来源期刊
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.
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