Auroral Thermosphere with Nitrogen-Ion (N2+) Lidar and Advanced Modular Incoherent Scatter Radar (AMISR)

带有氮离子 (N2) 激光雷达和高级模块化非相干散射雷达 (AMISR) 的极光热层

• 批准号: 0514103
• 负责人: Richard Collins
• 金额: --
• 依托单位: University of Alaska Fairbanks Campus
• 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: 2006-01-15 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0514103&HistoricalAwards=false
• 关键词: Auroral; Thermosphere; Nitrogen; Ion; N2+

The Arctic thermosphere and E-region ionosphere is sampled with three instruments, a novel nitrogen-ion (N2+) resonant lidar, the Advanced Modular Incoherent Scatter radar (AMISR), and a meridian scanning photometer at Poker Flat Alaska. The measurements are assimilated and modeled with the United States Air Force multispecies ionospheric chemistry model to produce a closed set of E-region continuity equations from which the number densities of [O2+], [NO+], and [NO] are determined in addition to the first range-resolved profile of N2+ density from 80-300 kilometer that is determined directly from the lidar measurements. These N2+ ion data provide more accurate E-region ionization rate estimates than can be extracted from the incoherent scatter radar (ISR) bulk ion information alone, and the NO data are used to investigate the life cycle of auroral NO. The research uses new instrument technology to achieve unprecedented sampling of two-dimensional ion morphology in the auroral E-region (using the electronic beam steering of AMISR), and unprecedented measurements of the N2+ altitude profile using an N2+ resonance at 391 nanometer.

用三种仪器，一种新的氮离子（N2+）共振激光雷，晚期模块化不一致的散射雷达（AMISR）和一个子午线扫描光度计，在扑克平面阿拉斯加采样了三种仪器（N2+）谐振激光雷（N2+）谐振激光雷，并在扑克平坦的阿拉斯加采样。 将测量值在美国空军多彼此电离层化学模型中被吸收并建模，以产生一组封闭的电子区域连续性方程，除[o2+]，[no+]和[no]的数量密度是从80-300 kiloine的第一个范围分辨率分配得出的，从80-300 kiloine的第一个范围分辨出来，从80-300 kiloine均从80-300 kiloine中确定了直接测量liDar的n2+密度。 这些N2+离子数据提供了比单独从不连贯的散射雷达（ISR）散装离子信息中提取的更准确的电子区域电离率估计值，并且无数据用于研究Auroral no的生命周期。 该研究使用新的仪器技术来实现极光电子区域中二维离子形态的前所未有的采样（使用AMISR的电子束转向），并使用N2+谐振的N2+高度分布的前所未有的测量值。