| 项目编号: | 1552045
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| 项目名称: | CEDAR: The First All-Sky Airglow Imaging Studies at Geomagnetic Conjugate Sites in Europe and Africa |
| 作者: | Jeffrey Baumgardner
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| 承担单位: | Trustees of Boston University
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| 批准年: | 2016
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| 开始日期: | 2016-10-01
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| 结束日期: | 2021-09-30
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| 资助金额: | 186484
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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: | project
; all-sky
; africaabstractthis project
; conjugate imager
; conjugate all-sky imager
; south africa
; sansa
; geomagnetic conjugacy
; south african national space agency
; all-sky upper-atmospheric imager
; european continent
; first all-sky airglow imaging study
; geomagneticconjugate sites
; geomagnetic coordinate system
|
| 英文摘要: | Proposal Number: AGS - 1552045
Principal Investigator: Jeffrey Baumgardner
Institution: Boston University
Proposal title: CEDAR: The First All-Sky Airglow Imaging Studies at Geomagnetic
Conjugate Sites in Europe and Africa
ABSTRACT
This project will significantly advance an existing collaboration between Boston University, the South African National Space Agency (SANSA), and the University of Padua in Italy to investigate hemispheric asymmetries in upper atmospheric phenomena using a unique configuration of magnetically conjugate all-sky imagers. The SANSA and Padua expertise are essential to the project because instrumentation will be physically located at these two sites. The imagers were previously developed by BU and installed under separate funding. The Padua imager is the first continuously operating all-sky upper-atmospheric imager on the European continent. With its conjugate imager at SANSA, the pair is positioned to shed new light on hemispheric asymmetries at altitudes where the atmosphere transitions into the space environment. The research team, one of the premiere groups in optical aeronomy, proposes to leverage the expertise of the international collaborators and the new type of data set to make important advances in understanding upper atmospheric dynamics. The project will provide an international research experience for a graduate student who will complete a doctoral thesis during the 5-year period of the project. The international collaborations with institutions in Italy and South Africa that will be supported by the project are both compelling and have strategic importance for developing observing capabilities aimed at addressing frontier issues in upper atmosphere - Geospace coupling. In support of this effort, the NSF Office of International Science and Engineering (OISE) is co-funding this project by supporting all requested international travel through the Global Venture Fund.
The target phenomena for this primarily observational investigation include: Stable Auroral Red (SAR) arcs, Medium Scale Traveling Ionospheric Disturbances (MSTIDs), ionospheric latitude gradients, and mesospheric waves - all dynamically important signatures of coupling between atmospheric and geospace regions. Exploring the longitudinal and hemispheric differences in these phenomena has the potential for increasing our understanding of the dynamics of the coupled ionosphere-thermosphere-magnetosphere system as it interacts with inputs from space and from the lower atmosphere. The focus on a new longitude sector is important for several reasons. Moving between longitude sectors introduces a changing offset between the geomagnetic coordinate system that organizes space weather inputs and the geographic coordinate system that organizes diurnal and seasonal changes in the atmosphere. In addition, upward propagating disturbances from the lower atmosphere due to weather systems or orography also change with location. Geomagnetic conjugacy has the important effect of selecting locations where the space weather disturbance inputs are similar for a given event but diurnal and seasonal conditions are not. The potential then exists to begin to separate out the effects attributable to the different types of inputs and their interconnections. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/90849
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Jeffrey Baumgardner. CEDAR: The First All-Sky Airglow Imaging Studies at Geomagnetic Conjugate Sites in Europe and Africa. 2016-01-01.
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