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: 0840729
• 负责人: Calvin Robert Clauer
• 金额: $ 10.97万
• 依托单位: Virginia Polytechnic Institute and State University
• 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=0840729&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.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该项目的总体目标是增加对极地电离层共轭性质的理解，这在一定程度上有助于理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，包括目前部署在北极和南极的地面全球定位系统接收器、全球定位系统卫星掩星接收器、全天成像仪、辐射计和磁力计，以估计电离层电子密度的三维时间历程，并估计这些极地地区的极风。此外，还将在南极部署更多的全球定位系统仪器，以增加该区域全球定位系统接收器的数量并改善其空间分布。本次调查的重要方面是：（1）在北极和南极地区利用大量仪器，提供最大数量的电离层测量，（2）在南极偏远地区修改和部署商用现成全球定位系统接收器，以改善全球定位系统测量的空间分布，（3）开发一种新的估计算法，用于估计极地风，（4）共轭极电离层中三维电子密度时程和电导的估计。与此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。