Development of Auroral Radiative Transfer Models

极光辐射传输模型的发展

• 批准号: 8712027
• 负责人: G. Randall Gladstone
• 金额: --
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1987-11-19
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8712027&HistoricalAwards=false
• 关键词: Development; Auroral; Radiative; Transfer; Models

The primary objective of the proposed research is to develop the capability to model the trapping and radiative transport of auroral ultraviolet resonance line emissions measured by spacecraft and rockets. Since auroral emissions vary strongly with horizontal position, this requires the development of a two- dimensional radiative transfer code to model the transport of EUV resonance line photons under distinctly non-plane-parallel conditions. This radiative transfer program will utilize a matrix-method solution, with the two-dimensional problems by using Fourier transforms. To provide input for the radiative transfer program, we also require auroral electron transport codes with variable energy grids to handel the high energy electrons found in auroras. After the successful development and testing of these programs, they will be applied to data from a variety of experiments (e.g., the Viking UV Imager, the STP78-1 EUV spectrometer, and nightside auroral rocket data). The results will provide valuable information about the energy and flux of the precipitating electrons, on both local and global scales. In addition, the programs will be made general enough to apply to auroras occurring in the atmospheres of other planets, such as Jupiter. The principal investigator has a sound record of previous research in the field of radiative transport, and the probability of success of this endeavor is high.

这项研究的主要目的是开发 模拟捕获和辐射传输的能力 极光紫外线共振线辐射测量 航天器和火箭。 由于极光发射变化很大 在水平位置，这需要开发两个- 三维辐射传输代码来模拟EUV的传输 明显非平面平行条件下的共振线光子 条件 该辐射传输计划将利用 矩阵方法的解决方案，与二维问题， 使用傅立叶变换。 为辐射提供输入 传输程序，我们还需要极光电子传输 具有可变能量网格的代码来处理高能量 极光中发现的电子 在研制成功后， 这些程序的测试，他们将被应用到数据从一个 各种实验（例如，维京海盗紫外成像仪，STP 78 - 1 EUV光谱仪和夜侧极光火箭数据）。 的 结果将提供有关能源和 沉淀电子的通量，在本地和全球 鳞片 此外，这些方案将具有足够的通用性， 适用于其他行星大气层中发生的极光， 比如木星。 首席研究员有良好的记录， 辐射传输领域的研究，以及 这一努力的成功率很高。