| 项目编号: | 1443730
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| 项目名称: | Continental-Scale Studies of Mesospheric Dynamics using the Antarctic Gravity Wave Instrument Network (ANGWIN) |
| 作者: | Michael Taylor
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| 承担单位: | Utah State University
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| 批准年: | 2014
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| 开始日期: | 2015-09-15
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| 结束日期: | 2020-08-31
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| 资助金额: | USD750000
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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: | gravity wave
; upper atmosphere
; instrumentation
; wave
; similar wave
; climate dynamics
; advanced mesospheric temperature mappers
; continental-scale effect
; research
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| 英文摘要: | People are mostly aware of waves that are seen over water surfaces or felt from winds. Similar waves exist in abundance in the atmosphere, affecting many air layers and transporting enormous amount of energy and momentum over large distances; they also affect and sometimes trigger many weather related processes. These waves are called "gravity waves"; they are key drivers of the air general circulation and temperature distributions throughout the middle and upper atmosphere. Studying gravity waves, their sources, generation mechanism and propagation properties, and dynamic characteristics is a matter of high importance for many scientific disciplines including atmospheric science, meteorology, climatology, space weather, and others. Developments in our knowledge and modeling of weather prediction and climate dynamics are of a highest societal importance.
Although the most significant effects of these gravity waves are best noticeable in the middle- and low latitudes, their generation and initial drivers are better studied from the polar regions. This research continues continent-wide observations of gravity waves in the upper atmosphere over Antarctica through the multinational research effort named ANGWIN (ANtarctic Gravity Wave Instrument Network) that uses state-of-the-art wide field cameras and Advanced Mesospheric Temperature Mappers (AMTM) deployed at various Antarctic stations. The proposed research adds new imagers to the U.S. stations at Palmer and at McMurdo, augmenting already existing instrumentation strategically distributed around the Antarctic continent at stations Halley and Rothera (UK), Comandante Ferraz (Brazil), Syowa (Japan), Davis (Australia), and at the U.S. stations McMurdo and South Pole. This will create an unprecedented capability for the pan-Antarctic investigations of gravity waves dynamics and their effects on the upper atmosphere. The project will bring new knowledge and better understanding of the continental-scale effects on the general air circulation of the middle and upper atmosphere, quantifying characteristics of mesospheric gravity waves, their dominant sources, propagation, and dissipation over the Antarctic continent and surrounding Southern Ocean. This research is a cost-effective investment that will advance the state of knowledge of the Geospace domain as the arrangement of installed and planned instrumentation will form a powerful observing system with a high potential for advancing this science field. The coordinated analysis of obtained images and data will be performed by the U.S. and international collaborator; data and results will be shared via a series of open workshops, facilitating discussions and assuring progress in understanding of important atmospheric phenomena. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93197
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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: | |
Michael Taylor. Continental-Scale Studies of Mesospheric Dynamics using the Antarctic Gravity Wave Instrument Network (ANGWIN). 2014-01-01.
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