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Using PFISR measurements and gravity wave dissipative theory to determine the neutral, background thermospheric winds

机译:使用PFISR测量和重力波耗散理论确定中性背景热球风

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摘要

Understanding the propagation and dissipation of an atmospheric gravity wave (GW) in the thermosphere requires an accurate dissipative GW dispersion relation, the GW's horizontal wavelength and period, and the background neutral winds and temperatures. Conversely, if the GW's horizontal wavelength, period, and vertically-varying vertical wavelengths are known instead along with the background temperatures, then the background, horizontal neutral winds along the GW propagation direction can be calculated using GW dissipative theory. Recent daytime observations using the Advanced Modular Incoherent Scatter Radar (AMISR) located in Poker Flat, Alaska, the Poker Flat Incoherent Scatter Radar (PFISR), have obtained these latter parameters. Using PFISR data for a GW on December 13, 2006, we calculate the average, background, horizontal neutral winds at z similar to 160-240 km.
机译:了解大气重力波(GW)在热层中的传播和耗散需要精确的耗散GW色散关系,GW的水平波长和周期以及背景中性风和温度。相反,如果已知GW的水平波长,周期和垂直变化的垂直波长以及背景温度,则可以使用GW耗散理论计算沿GW传播方向的背景水平中性风。最近使用位于阿拉斯加州Poker Flat的Advanced Modular Incoherent Scatter Radar(AMISR),Poker Flat Incoherent Scatter Radar(PFISR)进行的日间观测已获得了这些参数。使用2006年12月13日的GW的PFISR数据,我们计算出z处近似160-240 km的平均,背景,水平中性风。

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