Collaborative Research: Imaging, Estimation, and Analysis of Density Distributions in the Conjugate Polar Ionospheres

合作研究：共轭极地电离层密度分布的成像、估计和分析

• 批准号: 0840650
• 负责人: Gary Bust
• 金额: $ 15.24万
• 依托单位: ATMOSPHERIC & SPACE TECHNOLOGY RESEARCH ASSOCIATES, L.L.C.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-15 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0840650&HistoricalAwards=false
• 关键词: Collaborative; Research; Imaging; Estimation; Analysis

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The overall goal of this project is to increase understanding of the conjugate nature of the polar ionospheres, which in part helps understanding the multi-scale global solar wind, magnetosphere, and ionosphere system. The project utilizes numerous types of ionospheric remote sensing instrumentation, including: terrestrial GPS receivers, GPS satellite occultation receivers, all-sky imagers, riometers, and magnetometers currently deployed in the Arctic and Antarctic to estimate the 3-D time histories of the ionospheric electron density and also to estimate the polar wind in these polar regions. Furthermore, additional GPS instrumentation will be deployed in Antarctica to increase the number and improve the spatial distribution of GPS receivers in this region. Import aspects of this investigation are: (1) utilization of a large array of instrumentation in the Arctic and Antarctic regions to provide the maximum number of measurements of the ionosphere, (2) the modification and deployment of commercial-off-the-shelf GPS receivers in remote Antarctic locations to improve spatial distribution of GPS measurements, (3) development of a new estimation algorithm for estimating the polar wind, and (4) estimation of 3-D electron density time histories and conductances in conjugate polar ionospheres. The fieldwork and analysis efforts associated with this project are highly suitable for involvement and research training of graduate and undergraduate students.

该奖项根据 2009 年美国复苏和再投资法案（公法 111-5）提供资金。该项目的总体目标是增进对极地电离层共轭性质的了解，这在一定程度上有助于了解多尺度的全球太阳风、磁层和电离层系统。该项目利用多种类型的电离层遥感仪器，包括：地面GPS接收器、GPS卫星掩星接收器、全天空成像仪、测距仪和目前部署在北极和南极的磁力计，以估计电离层电子密度的3D时间历史，并估计这些极地地区的极风。此外，还将在南极洲部署更多的GPS仪器，以增加该地区GPS接收器的数量并改善其空间分布。这项调查的重要方面是：(1) 在北极和南极地区利用大量仪器来提供最大数量的电离层测量，(2) 在偏远的南极地区修改和部署商用现成 GPS 接收器，以改善 GPS 测量的空间分布，(3) 开发一种用于估计极地风的新估计算法，以及 (4) 估计共轭极性电离层中的 3-D 电子密度时程和电导。与该项目相关的实地考察和分析工作非常适合研究生和本科生的参与和研究培训。