Collaborative Research: Inner-Magnetospheric Array for Geospace Science: iMAGS

合作研究:用于地球空间科学的内磁层阵列:iMAGS

基本信息

项目摘要

This project will combine efforts from three previous projects involving observations of Earth's magnetic field. It will collect data from the AMBER, MEASURE and SAMBA magnetometer arrays and process the data in a uniform manner. The data will be used in several different research projects. One of the major projects will be to improve our understanding of the structure and dynamics of the plasmasphere, including the mass density within the plasmasphere and the location of the plasmapause. The other major research project is to understand how ultra-low frequency (ULF) waves propagate from high to low latitudes and how these waves affect the structure of the equatorial electrojet. Such wave activity may play an important role in the formation of plasma bubbles in the electrojet which then cause strong radio-wave scintillations. Radio-wave scintillations are an important space weather phenomenon that can affect radio communications and GPS location services. In addition to the fundamental research to be carried out by the members of the project, the data from the instruments will be made available to other scientific researchers through a simple web portal. The project will also include education and public outreach activities that involve middle and high school teachers and students. Teachers and students will use the data to enhance public understanding of Earth's space environment.There are two main scientific goals of this program. The first goal is to understand the structure and dynamics of the plasmasphere. To examine that topic the project will make use of resonant oscillations of ULF waves in the plasmasphere. The resonant waves allow one to determine the mass loading along the magnetic field lines that pass through the locations of the magnetometers. The field-line resonance data can also be used to identify the location of the plasmapause (or more accurately, the location of the plasmasphere boundary layer). The PBL can commonly be located on the dayside because ULF wave activity is a common phenomenon on the dayside. In order to locate the PBL on the nightside, the project will utilize TEC (total electron content) data from GPS measurements. The second major scientific goal of the project is to investigate the dynamics of the equatorial electrojet, including the affects of ULF waves and the formation of large plasma irregularities that lead to radio scintillation effects. Radio scintillations at low and equatorial latitudes can have significant effects on radio communications and GPS location accuracy. Indeed, when strong radio scintillation occurs, GPS receives may fail to work at all. This project will examine the longitudinal variability of density irregularities and scintillation. It will also determine how often and under what solar wind conditions ULF waves can propagate from high latitudes to low and equatorial latitudes.
这个项目将联合收割机的努力,从三个以前的项目涉及地球磁场的观测。它将收集来自AMBER、MEASURE和桑巴舞磁力计阵列的数据,并以统一的方式处理这些数据。这些数据将用于几个不同的研究项目。其中一个主要项目将是提高我们对等离子体层的结构和动力学的理解,包括等离子体层内的质量密度和等离子体层顶的位置。另一个主要研究项目是了解超低频(ULF)波如何从高纬度传播到低纬度,以及这些波如何影响赤道电射流的结构。这种波活动可能在电射流中等离子体气泡的形成中起重要作用,这些气泡然后引起强烈的无线电波振荡。无线电波闪烁是一种重要的空间气象现象,可影响无线电通信和全球定位系统定位服务。除了项目成员开展的基础研究外,还将通过一个简单的门户网站向其他科学研究人员提供仪器数据。该项目还将包括涉及初中和高中教师和学生的教育和公共宣传活动。教师和学生将利用这些数据来提高公众对地球空间环境的认识。第一个目标是了解等离子体的结构和动力学。为了研究这一课题,该项目将利用等离子体振荡器中ULF波的共振振荡。谐振波允许人们确定沿着沿着穿过磁力计的位置的磁场线的质量负载。场线共振数据还可用于识别等离子体层顶的位置(或更准确地,等离子体层顶边界层的位置)。由于ULF波活动在向阳面是一种普遍现象,因此边界层通常位于向阳面。为了确定夜面边界层的位置,该项目将利用全球定位系统测量的TEC(总电子含量)数据。该项目的第二个主要科学目标是研究赤道电射流的动力学,包括超低频波的影响和导致无线电闪烁效应的大型等离子体不规则性的形成。低纬度和赤道纬度的无线电振荡会对无线电通信和全球定位系统定位的准确性产生重大影响。事实上,当发生强烈的无线电闪烁时,GPS接收机可能根本无法工作。本项目将研究密度不规则性和闪烁的纵向变化。它还将确定ULF波从高纬度传播到低纬度和赤道纬度的频率和太阳风条件。

项目成果

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Mark Moldwin其他文献

The Need for Near-Earth Multi-Spacecraft Heliospheric Measurements and an Explorer Mission to Investigate Interplanetary Structures and Transients in the Near-Earth Heliosphere
  • DOI:
    10.1007/s11214-024-01108-8
  • 发表时间:
    2024-09-20
  • 期刊:
  • 影响因子:
    7.400
  • 作者:
    Noé Lugaz;Christina O. Lee;Nada Al-Haddad;Robert J. Lillis;Lan K. Jian;David W. Curtis;Antoinette B. Galvin;Phyllis L. Whittlesey;Ali Rahmati;Eftyhia Zesta;Mark Moldwin;Errol J. Summerlin;Davin E. Larson;Sasha Courtade;Richard French;Richard Hunter;Federico Covitti;Daniel Cosgrove;J. D. Prall;Robert C. Allen;Bin Zhuang;Réka M. Winslow;Camilla Scolini;Benjamin J. Lynch;Rachael J. Filwett;Erika Palmerio;Charles J. Farrugia;Charles W. Smith;Christian Möstl;Eva Weiler;Miho Janvier;Florian Regnault;Roberto Livi;Teresa Nieves-Chinchilla
  • 通讯作者:
    Teresa Nieves-Chinchilla

Mark Moldwin的其他文献

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{{ truncateString('Mark Moldwin', 18)}}的其他基金

Collaborative Research: Ground-Based Studies of High-Latitude Magnetospheric and Ionospheric Dynamics Using the Magnetometer Array for Cusp and Cleft Studies (MACCS)
合作研究:使用磁力计阵列进行尖点和裂口研究(MACCS)的高纬度磁层和电离层动力学地面研究
  • 批准号:
    2013433
  • 财政年份:
    2020
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Continuing Grant
Collaborative Research: A New Ground-magnetometer for inner Magnetospheric Array Geospace Studies (iMAGS)
合作研究:用于内部磁层阵列地理空间研究的新型地面磁力计(iMAGS)
  • 批准号:
    1848724
  • 财政年份:
    2019
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Standard Grant
Collaborative Research: Studies of Magnetospheric and Ionospheric Dynamics Using the Magnetometer Array for Cusp and Cleft Studies (MACCS)
合作研究:使用磁力计阵列进行尖点和裂口研究(MACCS)的磁层和电离层动力学研究
  • 批准号:
    1654044
  • 财政年份:
    2017
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Continuing Grant
I-Corps: Indoor Magnetic Beacon Localization
I-Corps:室内磁信标定位
  • 批准号:
    1550671
  • 财政年份:
    2015
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Standard Grant
IRES: The University of Michigan and South African National Space Agency (SANSA) Space Weather International Research Experiences for Students Program
IRES:密歇根大学和南非国家航天局 (SANSA) 空间天气国际学生研究体验项目
  • 批准号:
    1459911
  • 财政年份:
    2015
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Standard Grant
Collaborative Research: Studies of Magnetosphere-Ionosphere Coupling and Space Weather Using the Magnetometer Array for Cusp and Cleft Studies (MACCS)
合作研究:利用磁力计阵列进行尖点和裂隙研究(MACCS)的磁层-电离层耦合和空间天气研究
  • 批准号:
    1265651
  • 财政年份:
    2014
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Continuing Grant
The International Heliophysical Year (IHY) Africa 2009 Workshop; Livingstone, Zambia; June 8-12, 2009
2009 年国际太阳物理年(IHY)非洲研讨会;
  • 批准号:
    0850374
  • 财政年份:
    2009
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Standard Grant
Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education (MEASURE-II): A Ground-Based Plasmasphere Monitor Array
东大西洋沿岸用于本科生研究和教育的磁力计 (MEASURE-II):地面等离子体层监测阵列
  • 批准号:
    0348398
  • 财政年份:
    2003
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Continuing Grant
National High School Space Weather Network
国家高中空间天气网络
  • 批准号:
    0216567
  • 财政年份:
    2002
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Standard Grant
Accessible Space Physics: Developing a National High School Magnetometer Array (AFGE)
无障碍空间物理:开发国家高中磁力计阵列 (AFGE)
  • 批准号:
    0196002
  • 财政年份:
    2000
  • 资助金额:
    $ 41.26万
  • 项目类别:
    Standard Grant

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