Continuing Theoretical Studies of Dynamical Processes in the Ionosphere

电离层动力学过程的持续理论研究

• 批准号: 0962544
• 负责人: Robert Schunk
• 金额: $ 30万
• 依托单位: Utah State University
• 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 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0962544&HistoricalAwards=false
• 关键词: Continuing; Theoretical; Studies; Dynamical; Processes

This project will investigate several research topics on the effects of plasma and neutral gas transport processes on the ionosphere and surrounding regions. The methodology is based on time-dependent, high-resolution, physics-based theoretical and assimilative models in addition to auxiliary data from ground-based radars and magnetometers, particularly the Poker Flat (PFISR) and Resolute Bay (RISR) incoherent scatter radars. The scientific problems under investigation pertain to the ionosphere, thermosphere, exosphere, plasmasphere, polar wind, and to coupling mechanisms relevant to these regions. A focused goal of the project is to better understand the effect of mesoscale plasma structures on global-scale flows using ensemble Kalman filtering of high-latitude ionospheric electrodynamical variables. Other specific topics include: the atmospheric response to the recent extreme solar cycle phase minimum and to sporadic space weather events; the generation and evolution of ionospheric disturbances; and the climatology of atmospheric waves.

该项目将研究等离子体和中性气体传输过程对电离层及周边区域影响的几个研究课题。 该方法基于时间相关、高分辨率、基于物理的理论和同化模型，以及来自地面雷达和磁力计的辅助数据，特别是 Poker Flat (PFISR) 和 Resolute Bay (RISR) 非相干散射雷达。 正在研究的科学问题涉及电离层、热层、外逸层、等离子体层、极地风以及与这些区域相关的耦合机制。 该项目的一个重点目标是利用高纬度电离层电动力学变量的集合卡尔曼滤波更好地了解中尺度等离子体结构对全球尺度流动的影响。 其他具体主题包括：大气对近期极端太阳活动周期最小值阶段和偶发空间天气事件的响应；电离层扰动的产生和演化；和大气波的气候学。