Advanced Modular Incoherent Scatter Radar (AMISR) Graduate Studies: Incoherent and Coherent Scatter Applications of the System

高级模块化非相干散射雷达 (AMISR) 研究生学习：系统的非相干和相干散射应用

• 批准号: 0538343
• 负责人: Michael Kelley
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0538343&HistoricalAwards=false
• 关键词: Advanced; Modular; Incoherent; Scatter; Radar

The investigators will study the equatorial electrojet and Polar Mesospheric Summer Echoes (PMSE) using the Advanced Modular Incoherent Scatter Radar (AMISR) systems at Jicamarca, Peru, and Poker Flat, Alaska. The graduate student to be supported under this award spent a year helping with the calibration and validation of the AMISR system at Jicamarca. After the installation and initial engineering tests of this prototype system, it was used to make observations of the equatorial electrojet. The equatorial electrojet is a sheet of current flowing in the ionosphere around the earth at the magnetic equator. The plasma instabilities in the equatorial electrojet are still not well understood even after forty years of study by rockets and radars. By measuring electrojet properties using radars at Jicamarca at two different frequencies, the investigators will obtain new information about the spatial and temporal behavior of the irregularities. After gaining this experience, the investigators will apply that knowledge to the observations of PMSE using the full AMISR system at Poker Flat, Alaska. Although PMSE have been observed by many radar systems, the opportunity to use AMISR, with its unprecedented steering ability, will shed new light on the processes in the mesosphere that give rise to these echoes. The graduate student to be supported is from an underrepresented minority group, and his involvement continues a strong tradition at Cornell in encouraging young scientists from diverse backgrounds.

研究人员将使用秘鲁Jicamarca和阿拉斯加扑克平坦的先进模块化不连贯的散射雷达（AMISR）系统研究赤道电震和极地层夏季回声（PMSE）。 根据该奖项获得支持的研究生花了一年的时间在Jicamarca对AMISR系统的校准和验证。 在此原型系统的安装和初始工程测试之后，它被用来观察赤道电流。 赤道电流是磁赤道围绕地球围绕电离层流动的电流板。 即使火箭和雷达进行了40年的研究，赤道电泽的血浆不稳定性仍未得到很好的了解。 通过在两个不同频率下使用jicamarca的雷达测量电泽的性能，研究人员将获得有关不规则性的空间和时间行为的新信息。 获得这一经验后，调查人员将使用阿拉斯加扑克平面的完整AMISR系统将这些知识应用于PMSE的观察结果。 尽管许多雷达系统都观察到了PMSE，但使用AMISR的机会及其前所未有的转向能力，将为中层中的过程提供新的启示，从而引起这些回声。 受到支持的研究生来自一个代表性不足的少数群体，他的参与延续了康奈尔大学的强烈传统，鼓励来自不同背景的年轻科学家。