Basic Ionization, Airglow and Auroral Processes

基本电离、气辉和极光过程

• 批准号: 0312513
• 负责人: Alexander Dalgarno
• 金额: $ 13.87万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0312513&HistoricalAwards=false
• 关键词: Basic; Ionization; Airglow; Auroral; Processes

The investigators will calculate the velocity distribution of oxygen atoms in the ground and metastable states as functions of altitude in the terrestrial atmosphere. In previous work, the investigators have developed a set of computer codes that will enable them to compute the equilibrium velocity distributions of energetic atoms as a function of altitude in the atmosphere. These will be used to determine the transfer of energy in collisions of energetic atoms that take proper account of the dependence of the energy transfer cross sections on the scattering angle. They will also study the transmission of ultraviolet radiation through the atmosphere with a focus on the temperature dependence of the absorption cross sections. This is a continuation of theoretical studies of energetic atoms and their effects on the chemistry and evolution of the atmosphere.

研究人员将计算氧原子在地面和亚稳态的速度分布，作为地球大气中高度的函数。 在以前的工作中，研究人员开发了一套计算机代码，使他们能够计算高能原子的平衡速度分布作为大气中高度的函数。 这些将被用来确定能量转移的高能原子的碰撞，适当考虑的能量转移截面的散射角的依赖性。 他们还将研究紫外线辐射通过大气层的传输，重点是吸收截面的温度依赖性。 这是高能原子及其对大气化学和演化的影响的理论研究的继续。