Radiative Transfer Studies of Aeronomical Interest

航空利益的辐射传输研究

• 批准号: 9630017
• 负责人: G. Randall Gladstone
• 金额: $ 16.06万
• 依托单位: Southwest Research Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9630017&HistoricalAwards=false
• 关键词: Radiative; Transfer; Studies; Aeronomical; Interest

This grant will support the adaptation of recent advances in astrophysical radiative transfer studies to address several outstanding problems in aeronomy. Specifically, the PI will study: (1) multidimensional radiative transfer, including optically thick resonance lines in the aurora, geocorona, and twilight, as well as the problem of atomic oxygen measurements using resonance lamps; (2) molecular band simulation with correct accounting for non-LTE effects; and (3) optimization of large 1-D problems requiring the solution of several hundreds to perhaps thousands of individual 1-D problems. Using the Accelerated Lambda Iteration (ALI) method, the PI will approximate the full scattering integral to explore rapid, accurate solutions to difficult radiative transfer problems in astrophysics. These methods will lead to the development of codes to address problems on aeronomical interest.

这笔赠款将支持适应天体物理辐射传输研究的最新进展，以解决空气动力学中的几个突出问题。具体而言，光电局将研究：(1)多维辐射传输，包括极光、地冕和黄昏的光学厚度共振线，以及利用谐振灯进行原子氧测量的问题；(2)正确考虑非LTE效应的分子能带模拟；(3)大型1-D问题的优化，需要解决数百至数千个单独的1-D问题。利用加速Lambda迭代(ALI)方法，PI将近似全散射积分，以探索快速、准确地解决天体物理中的困难的辐射传递问题。这些方法将导致代码的发展，以解决有关航空兴趣的问题。