Sondrestrom ISR/POLAR UVI Global Conductance Model

Sondrestrom ISR/POLAR UVI 全局电导模型

• 批准号: 0001899
• 负责人: Richard Doe
• 金额: $ 29.8万
• 依托单位: SRI International
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0001899&HistoricalAwards=false
• 关键词: Sondrestrom; ISR; POLAR; UVI; Global

The investigators will create a solar wind parameterized global auroral conductance model based on a series of multi-year, multi-season, collaborative experiments between the POLAR satellite ultraviolet imager and the Sondrestrom incoherent scatter radar. Auroral conductance is a critically underdetermined parameter that is central to a broader understanding of the structure of magnetospherically imposed currents, convection potential, and energy deposition in the high latitude ionosphere. The aim is to merge incoherent scatter radar conductance measurements with conductance estimates from ultraviolet images in a single model that takes advantage of the complementary information available from the two techniques. Modern electrodynamics models of the global ionosphere require an accurate specification of auroral energy deposition and the associated electrical conductance at high latitudes. This study addresses the weakness of current conductance models by creating a model tied to properties of the solar wind. The final output of the study will be solar wind parameterized global conductance maps at the best possible spatial resolution.

研究人员将基于POLAR卫星紫外成像仪和Sondrestrom非相干散射雷达之间的一系列多年、多季节的合作实验，创建一个太阳风参数化的全球极光电导模型。极光电导是一个严重未确定的参数，它对于更广泛地理解磁层施加的电流、对流势和高纬度电离层的能量沉积结构至关重要。目的是将非相干散射雷达电导测量值与来自紫外线图像的电导估计合并在一个模型中，该模型利用了两种技术提供的互补信息。全球电离层的现代电动力学模型需要精确说明极光能量沉积和高纬度地区相关的电导率。这项研究通过创建一个与太阳风特性相关的模型来解决当前电导模型的弱点。研究的最终结果将是太阳风参数化的全球电导图，其空间分辨率尽可能高。