| 项目编号: | 1613067
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| 项目名称: | Risk Retirement for WAMS: The Water and Ash MM-wave Spectrometer |
| 作者: | Christopher Groppi
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| 承担单位: | Arizona State University
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| 批准年: | 2016
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| 开始日期: | 2016-02-15
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| 结束日期: | 2017-01-31
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| 资助金额: | 72577
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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 - Earth Sciences
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| 英文关键词: | wams instrument
; so-called wams
; volcanic ash plume dynamics
; water vapor temperature
; proof-of-concept microwave radar system
; ash concentration
; understanding volcanic ash plume dynamics
; water vapor radiometer
; ash mm-wave spectrometer
; path-integrated water vapor
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| 英文摘要: | 1613067
Groppi
This award, made in response to a EArly-Concept Grants for Exploratory Research (EAGER) proposal submission, provides funds to allow for the acquisition of key electronic components necessary to develop a proof-of-concept microwave radar system ultimately intended to study volcano plumes. The so-called WAMS (Water and Ash MM-Wave Spectrometer), would be a two-antenna, active-passive system. The low frequency system would function as a water vapor radiometer, using the 22 GHz emission line, while the high frequency system would estimate water vapor temperature (via radiometry at 183 and 232 GHZ), and also function as a radar to study the ash. The investigators at Arizona State University have experience in the design and construction of similar instruments for radio astronomy.
A successfully developed WAMS instrument with a dual antenna active-passive radar capability for imaging volcanic plumes offers the potential to measure path-integrated water vapor in a volcanic plume concurrently with measurement of ash concentration in near real time and thus might contribute to fundamental advances in our knowledge of basic volcanic conduit processes leading to eruption. This support will allow for development of a prototype instrument that will be laboratory tested by an ASU graduate student. The potential of a realized WAMS instrument to yield a better understanding of volcanic ash plume dynamics and evolution (e.g., particle aggregation dynamics and transport) may have benefits for mitigating air traffic hazards from volcanic activity. Coupled with the student training in electronics testing that will be fostered by this award, these two aspects support NSFs mission of promoting the progress of science and advancing the national welfare.
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Broader Impacts
The EAGER project would directly engage a graduate student in laboratory testing of the prototype WAMS instrument. The potential of WAMS for better understanding volcanic ash plume dynamics and evolution (e.g. particle aggregation dynamics and transport) may have benefits for mitigating air traffic hazards from volcanic activity.
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| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/92878
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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: | |
Christopher Groppi. Risk Retirement for WAMS: The Water and Ash MM-wave Spectrometer. 2016-01-01.
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