Ionospheric Storm Transition Region Properties

电离层风暴过渡区域属性

• 批准号: 0939816
• 负责人: Seebany Datta-Barua
• 金额: $ 24万
• 依托单位: ATMOSPHERIC & SPACE TECHNOLOGY RESEARCH ASSOCIATES, L.L.C.
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0939816&HistoricalAwards=false
• 关键词: Ionospheric; Storm; Transition; Region; Properties

This project will investigate plasma structuring on an intermediate spatial scale along the edges of mid-latitude ionosphere disturbances known as storm enhanced density (SED) using data-assimilative models. Although this topic has received attention only recently (relative to high- and low-latitude phenomena), improved understanding of SED generation and development is important for improving space-based communication and navigation capabilities. The project will use numerical models (IDA4D and EMPIRE) in order to study the spatial structuring of SEDs along with their physical drivers. Auxiliary data sets -- such as field-aligned plasma velocities measured by the Millstone Hill incoherent scatter radar, DMSP satellite data, estimated drift speeds from the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) model, and total electron content measurements from GPS -- will also be used for cross-comparison with the model results.

该项目将利用数据同化模型，调查沿称为风暴增强密度的中纬度电离层扰动边缘的中间空间尺度沿着的等离子体结构。 虽然这一专题只是最近才受到注意（相对于高纬度和低纬度现象而言），但加深对系统电子化的产生和发展的了解对于提高天基通信和导航能力十分重要。 该项目将使用数值模型（IDA 4D和EMPIRE），以便研究SEDs的空间结构及其物理驱动因素沿着。 辅助数据集-如Millstone Hill非相干散射雷达测量的场向等离子体速度、DMSP卫星数据、电离层电动力学同化测绘模型估算的漂移速度以及全球定位系统的总电子含量测量值-也将用于与模型结果进行交叉比较。