| 项目编号: | 1643119
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| 项目名称: | Resonance Properties of the Ross Ice Shelf, Antarctica, as a Factor in Regional Wave Interaction between Ocean and Atmosphere |
| 作者: | Nikolay Zabotin
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| 承担单位: | University of Colorado at Boulder
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| 批准年: | 2017
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| 开始日期: | 2017-07-01
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| 结束日期: | 2020-06-30
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| 资助金额: | 600000
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| 资助来源: | US-NSF
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| 项目类别: | Standard 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 - Polar
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| 英文关键词: | ross ice shelf
; ocean
; infragravity wave
; upper atmosphere/thermosphere
; resonance frequency
; wave activity
; southern ocean
; standing wave structure
; entire atmosphere
; wave coupling
; impressive gravity wave activity
; acoustic gravity wave
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| 英文摘要: | Recent theoretical and experimental studies indicated that over a wide range of altitudes and for periods from a few minutes to several hours a significant portion of the waves activity observed in the upper atmosphere/thermosphere is due to acoustic gravity waves radiated by infragravity waves generated in the ocean. Studying this impressive gravity wave activity over the Antarctic, where proximity of the Ross Ice Shelf makes it very special, is the goal of this project. The ocean's infragravity waves can excite the fundamental mode and low-order oscillations of the Ross Ice Shelf at its resonance frequencies, thus creating standing wave structures throughout the entire atmosphere. It is likely that this effect was recently detected using LIDAR observations at McMurdo. This project will support the training and education of a graduate student.
This award will allow scientists to study the wave coupling of the Southern Ocean (via the Ross Ice Shelf) to the upper atmosphere/thermosphere. This study will involve theoretical assessment of the coupling phenomena and comparing theory with data collected by a unique combination of instruments deployed in the Ross Ice Shelf area: the NSF-supported network of seismographs and microbarometers on the Ross Ice Shelf, the infrasound station near McMurdo, and the Dynasonde recently installed at the Korean Antarctic Station Jang Bogo. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89971
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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: | |
Nikolay Zabotin. Resonance Properties of the Ross Ice Shelf, Antarctica, as a Factor in Regional Wave Interaction between Ocean and Atmosphere. 2017-01-01.
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