GEM: Quantitative Estimates of Plasmaspheric Losses and Implications for Solar Wind-Magnetosphere Coupling
GEM:等离子体层损失的定量估计及其对太阳风磁层耦合的影响
基本信息
- 批准号:0902846
- 负责人:
- 金额:$ 28.79万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing 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:
- 关键词:
项目摘要
This is a 3-year project to determine the effects and implications of plasmaspheric material being eroded from the plasmasphere and subsequently being convected to the dayside reconnection site. Specifically, the project seeks to answer the following science questions: (1) how plasmaspheric losses are partitioned during magnetic storms between downward flow into the ionosphere and transport to the dayside boundary layers and (2) whether transport of plasmaspheric material to the dayside magnetopause slows magnetic reconnection as manifested in a possible systematic reduction in the polar cap potential at these times. Global images of the plasmasphere from the EUV instrument onboard the IMAGE spacecraft; cold plasma density and flow data from geosynchronous spacecraft; density and total flux tube content derived from ground-based measurements of whistlers and cross polar cap potential measured by the SuperDARN radar will be combined to address these questions.The project will have significant broader impacts in a number of ways. It will support the research career of a female scientist, who will act as the science PI on the project. Undergraduate students will participate in the research project through an established REU program. Finally, magnetic reconnection is a universal process and observational verification that reconnection is reduced in the presence of cold plasma would be a result that would have implications for numerous other plasma- and astrophysical studies.
这是一个为期3年的项目,以确定等离子体层材料被侵蚀的等离子体层,随后被对流到向阳面重连网站的影响和影响。具体而言,该项目寻求回答以下科学问题:(1)磁暴期间等离子体层损失如何在向下流入电离层和向向阳面边界层的传输之间分配,以及(2)等离子体层物质向向阳面磁层顶的传输是否减缓了磁重联,这表现在这些时候极帽电位可能系统性降低。 将综合利用IMAGE航天器上的极紫外线仪器提供的等离子体云的全球图像、地球同步航天器提供的冷等离子体密度和流动数据、对哨声进行地面测量得出的密度和总通量管内容以及由SuperDARN雷达测量的跨极冠电位,以解决这些问题。 它将支持一名女科学家的研究事业,她将担任该项目的科学PI。 本科生将通过一个既定的REU计划参与研究项目。 最后,磁重联是一个普遍的过程,在冷等离子体存在下重联减少的观测验证将是一个对许多其他等离子体和天体物理学研究有影响的结果。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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John Gill其他文献
Clinical relevance of HLA-DQ eplet mismatch and maintenance immunosuppression with risk of allosensitization after kidney transplant failure
HLA-DQ elet 错配和维持免疫抑制与肾移植失败后异体致敏风险的临床相关性
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:3.7
- 作者:
J. Tran;Ibrahim Alrajhi;Doris T. Chang;Karen R. Sherwood;P. Keown;J. Gill;M. Kadatz;John Gill;James H. Lan - 通讯作者:
James H. Lan
UvA-DARE ( Digital Academic Repository ) Clinical implications of immune recovery during antiretroviral treatment for HIV infection
UvA-DARE(数字学术知识库)艾滋病毒感染抗逆转录病毒治疗期间免疫恢复的临床意义
- DOI:
- 发表时间:
2012 - 期刊:
- 影响因子:0
- 作者:
L. Gras;A. Kesselring;James Griffin;Ard Ivan Sighem;Christopher Fraser;A. Ghani;Frank Miedema;P. Reiss;Joep M.A. Lange;F. Wolf;F. Wit;C. Smit;S. Geerlings;J. Mulder;Gerrit Schrei;Herman G. Sprenger;G. V. Twillert;A. Verbon;A. Kesselring;F. Wit;M. V. D. Valk;Clemens Richter;Dorine de Vries;J. Arends;K. Brinkman;Caroline Sabin;Jens D. Lundgren;John Gill;J. Gatell;Andri Rauch;J. Montaner - 通讯作者:
J. Montaner
The Impact of Transfer Patients on the Local Cascade of HIV Care Continuum
转移患者对当地艾滋病毒护理连续体的影响
- DOI:
10.1097/qai.0000000000000430 - 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
H. Krentz;J. Macdonald;John Gill - 通讯作者:
John Gill
Do Juvenile White Perch Morone americana Grow Better in Freshwater Habitats of the Blackwater River Drainage (Chesapeake Bay, MD, USA)?
- DOI:
10.1007/s12237-012-9512-0 - 发表时间:
2012-05-15 - 期刊:
- 影响因子:2.300
- 作者:
Joshua James Newhard;Joseph William Love;John Gill - 通讯作者:
John Gill
Viral load kinetics and the clinical consequences of cytomegalovirus in kidney transplantation
肾移植中巨细胞病毒的病毒载量动力学和临床后果
- DOI:
10.3389/fimmu.2023.1302627 - 发表时间:
2024 - 期刊:
- 影响因子:7.3
- 作者:
Sabina Dobrer;Karen R. Sherwood;Ishan Hirji;James H. Lan;John Gill;Nancy Matic;P. Keown - 通讯作者:
P. Keown
John Gill的其他文献
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{{ truncateString('John Gill', 18)}}的其他基金
Collaborative Research: Applying the AGO Network to Energy Transfer in the Radiation Belts and Remote Sensing of Auroral Plasma Processes
合作研究:将AGO网络应用于辐射带能量传输和极光等离子体过程遥感
- 批准号:
1141791 - 财政年份:2012
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
ELF/VLF Studies of Whistler-mode Waves, Lightning Discharges, and Gamma-ray Events from Palmer, Antarctica
南极洲帕尔默的惠斯勒模式波、闪电放电和伽马射线事件的 ELF/VLF 研究
- 批准号:
1043442 - 财政年份:2011
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
Collaborative Research: PENGUIn - A High-Latitude Window to Geospace Dynamics
合作研究:PENGUIn——地球空间动力学的高纬度窗口
- 批准号:
0840058 - 财政年份:2009
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
CEDAR: Mechanisms and Effects of Terrestrial Gamma-ray Flashes
CEDAR:地面伽马射线闪光的机制和影响
- 批准号:
0836326 - 财政年份:2009
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
A VLF Beacon Transmitter at South Pole
南极的 VLF 信标发射机
- 批准号:
0636928 - 财政年份:2007
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
ELF/VLF Observations of Lightning Discharges, Whistler-mode waves and Electron Precipitation at Palmer Station, Antarctica.
南极洲帕尔默站闪电放电、惠斯勒模式波和电子降水的 ELF/VLF 观测。
- 批准号:
0538627 - 财政年份:2006
- 资助金额:
$ 28.79万 - 项目类别:
Continuing Grant
ELF/VLF Observations in the Southern Pacific Ocean
南太平洋 ELF/VLF 观测
- 批准号:
0538242 - 财政年份:2006
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
Collaborative Research: Very Low Frequency (VLF) Remote Sensing of the Lower Ionosphere and Electron Precipitation from the Radiation Belts
合作研究:低电离层的甚低频(VLF)遥感和辐射带的电子沉淀
- 批准号:
0551174 - 财政年份:2006
- 资助金额:
$ 28.79万 - 项目类别:
Continuing Grant
CEDAR: Mechanisms and Effects of Terrestrial Gamma-Ray Flashes
CEDAR:地面伽马射线闪光的机制和影响
- 批准号:
0535461 - 财政年份:2006
- 资助金额:
$ 28.79万 - 项目类别:
Continuing Grant
Probalistic Computation and Computational Complexity
概率计算和计算复杂性
- 批准号:
7707555 - 财政年份:1977
- 资助金额:
$ 28.79万 - 项目类别:
Standard Grant
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