Basic Ionization, Airglow and Auroral Processes

基本电离、气辉和极光过程

• 批准号: 0430506
• 负责人: Alexander Dalgarno
• 金额: $ 42万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-12-01 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0430506&HistoricalAwards=false
• 关键词: Basic; Ionization; Airglow; Auroral; Processes

Numerical simulations of chemical processes are performed to improve the ability to extract physical parameters like density and temperature from airglow and radar observations of the upper atmosphere. These simulations are based upon quantum mechanical principles and include physically realistic elastic and inelastic collision characterizations, as well as physically realistic descriptions of reactant velocity distributions. The derived cross-sections and quenching rates improve upon extant values that continue to defy accurate laboratory determinations, and are applicable to a broad range of research in planetary and cometary atmospheres, laser design, and plasma physics simulations. Particular emphasis is placed on Oxygen (O), Hydrogen (H), metastable O(1D), and He (Helium) reactions germane to terrestrial aeronomy.

对化学过程进行了数值模拟，以提高从大气层上部的气辉和雷达观测中提取密度和温度等物理参数的能力。 这些模拟是基于量子力学原理，包括物理上现实的弹性和非弹性碰撞表征，以及反应物的速度分布的物理上现实的描述。 导出的横截面和淬火率改善现存的值，继续违抗准确的实验室测定，并适用于广泛的研究行星和彗星的大气，激光设计和等离子体物理模拟。 特别强调的是氧（O），氢（H），亚稳态O（1D），和He（氦）反应密切相关的陆地高层大气。