| 项目编号: | 1405054
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| 项目名称: | Collaborative Research: GEM: Modulation of Plasma Waves by Thermal Plasma Density Variation in the Inner Magnetosphere |
| 作者: | Wen Li
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| 承担单位: | University of California-Los Angeles
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| 批准年: | 2013
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| 开始日期: | 2014-10-01
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| 结束日期: | 2017-02-28
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| 资助金额: | USD84270
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| 资助来源: | US-NSF
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| 项目类别: | Continuing grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | modulation
; gem
; thermal plasma density variation
; magnetosphere
; inner magnetosphere
; gem focus group
; density variation
; community-initiated research program
; plasma wave
; plasma wave intensity
; storm-time inner magnetosphere-ionosphere convection
; research training
; hotray wave ray-tracing computer code
; magnetosonic wave
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| 英文摘要: | The Geospace Environment Modeling (GEM) Program is a broad-based, community-initiated research program on the physics of the Earth's magnetosphere and the coupling of the magnetosphere to the atmosphere and to the solar wind. The work of GEM is accomplished in a series of campaigns and focus groups that solve specific problems leading to the construction of a global Geospace General Circulation Model (GGCM) with predictive capability. This project will contribute essential results to this goal pertaining to understanding the role of plasma waves in energizing and transporting particles and plasma in the near-Earth space environment. In addition, the project supports the research of an early-career tenure-track faculty member and contributes to the research training of another early-career female scientist and a graduate student.
This investigation utilizes both spacecraft observations from THEMIS and Van Allen Probes and the HOTRAY wave ray-tracing computer code to study the modulation of plasma wave intensity by thermal plasma density variations in the inner magnetosphere. The specific science questions to be addressed include: (1) How do thermal plasma density variations cause modulation in the intensity of chorus, hiss and magnetosonic waves? and (2) How do the waves excited by these density variations affect radiation belt and ring current? The investigation is relevant to the GEM Focus Groups on "Storm-Time Inner Magnetosphere-Ionosphere Convection", and "Scientific Magnetic Mapping & Techniques". |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95413
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Wen Li. Collaborative Research: GEM: Modulation of Plasma Waves by Thermal Plasma Density Variation in the Inner Magnetosphere. 2013-01-01.
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