| 项目编号: | 1655693
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| 项目名称: | Experiments in X-band Phased-Array Weather Radar Polarimetry |
| 作者: | Stephen Frasier
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| 承担单位: | University of Massachusetts Amherst
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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: | 287371
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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: | phased-array
; phased-array radar
; current weather radar
; radar system
; raytheon low power radar
; gap-filling radar
; mechanically-scanned radar
; observational experiment
; weather polarimetry
; phased-array technology
; phased-array weather radar antenna
; valuable training experience
; severe weather
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| 英文摘要: | Phased-array radar is a mature technology that has recently been applied to remote sensing of clouds and precipitation. These radar systems have several advantages over current weather radars, however there are biases introduced when dealing with polarimetric variables that help to discriminate between precipitation types. This award will allow researchers to conduct experiments with the goal of providing a clearer picture of the capabilities and limitations of phased-array technology for weather polarimetry. The broader societal impacts of the award are related to improving technology that could eventually be used to study and forecast severe weather. Students would be directly involved in the project, giving them valuable training experience. The radar testbed will be made available to other researchers and it could potentially be used as a gap-filling radar for the local region.
Phased-array radar has a long history of use for point measurements, but making polarimetric measurements using phased-array is more complicated than for a traditional antenna design. The PI will perform engineering and observational experiments with the Raytheon Low Power Radar (LPR) to study the polarization performance, biases, and other measurement uncertainties particular to phased-array weather radar antennas, as well as to explore new capabilities including rapid scanning, polarization correction, and alternate polarization bases. The LPR would be co-located with a mechanically-scanned radar for comparison purposes. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89928
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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: | |
Stephen Frasier. Experiments in X-band Phased-Array Weather Radar Polarimetry. 2017-01-01.
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