NSWP: Space Weather--An Examination of Short Term Forecasting of Equatorial Spread-F Using a Longitudinal Chain of Wind Measuring Fabry-Perot Interferometers

NSWP：空间天气——使用纵向链测风法布里-珀罗干涉仪对赤道传播-F 进行短期预报的检验

• 批准号: 0518855
• 负责人: Rick Niciejewski
• 金额: $ 37.12万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0518855&HistoricalAwards=false
• 关键词: NSWP; Space; Weather; Examination; Short

The role of neutral winds in triggering and subsequently forecasting equatorial spread-F is determined using a longitudinal chain of three Fabry-Perot interferometers located at Carmen Alto, Peru, Cachoeira Paulista, Brazil, and Ascension Island in the South Atlantic. Simultaneous measurements of zonal winds just below the F-region ionospheric peak are made using well-established Fabry-Perot interferometer instrumentation sampling the Doppler profile of the OI (630nm) nightglow emission. Peru and Brazil instrumentation is completed and installed in the first research year, and Ascension Island is instrumented in research year three. The measurements determine the climatology of the nighttime F-region neutral winds near the magnetic equator. Zonal wind gradients in a sixty-degree swath of longitude are correlated to the onset and expansion of equatorial spread-F, and concomitant radio scintillations. Neutral winds are a key parameter to include in a focused effort by the National Space Weather Program to forecast equatorial scintillations. The wind measurements coincide with the presence of the C/NOFS satellite, dedicated to the forecast effort.

中性风在触发和随后预测赤道扩展F的作用是确定使用位于卡门阿尔托，秘鲁，卡舒埃拉保利斯塔，巴西和Ascension在南大西洋的三个法布里-珀罗干涉仪的纵向链。同时测量的纬向风低于F-区域电离层峰值使用完善的法布里-珀罗干涉仪仪器采样的OI（630 nm）夜光发射的多普勒轮廓。秘鲁和巴西的仪器在第一个研究年完成并安装，Ascension岛的仪器在第三个研究年安装。这些测量确定了夜间F区磁赤道附近中性风的气候学。经度60度范围内的纬向风梯度与赤道扩展F的开始和扩展以及伴随的射电暖化有关。中性风是国家空间气象计划重点预测赤道气旋的一个关键参数。风的测量与C/NOFS卫星的存在相吻合，该卫星致力于预报工作。