Abstract
AbstractWe have performed a statistical data analysis on relationship between simultaneous Na density data and cosmic noise absorption (CNA) data, which is an indicator for energetic particle precipitation, obtained at Syowa, Antarctic in 2000–2002. It is found that the Na densities around the topside of Na layers (above $$\sim 95 \,\hbox {km}$$
∼
95
km
height) tended to be smaller when the CNA was larger. The amounts of Na density responses, i.e., Na density decrease or Na loss, were increasing with magnetic local time (MLT) from dusk hours to dawn hours, and those of CNA responses, i.e., CNA increase, were also increasing with MLT. Thus, there were clear negative correlations between the Na density and CNA variations. These results indicate that the Na loss around the topside of Na layer would be induced by the energetic particle precipitation, and its effect would be more severe in dawn hours.
Funder
Japan Society for the Promotion of Science
Inamori Foundation
JGC-S Scholarship Foundation
Research Grants from Casio Science Promotion Foundation
Publisher
Springer Science and Business Media LLC
Subject
Space and Planetary Science,Geology
Reference21 articles.
1. Chu X, Papen GC (2005) Resonance fluorescence lidar for measurements of the middle and upper atmosphere. In: Fujii T, Fukuchi T (eds) Laser remote sensing. CRC Press, Florida, Boca Raton
2. Gu YY, Qian J, Papen GC, Swenson GR, Espy PJ (1995) Concurrent observations of auroral activity and a large sporadic sodium layer event during ANLC-93. Geophys Res Lett 22:2805–2808. https://doi.org/10.1029/95GL02874
3. Heinselman CJ, Thayer JP, Watkins BJ (1998) A high-latitude observation of sporadic sodium and sporadic E-layer formation. Geophys Res Lett 25:3059–3062. https://doi.org/10.1029/98GL02215
4. Heinselman CJ (2000) Auroral effects on the gas phase chemistry of meteoric sodium. J Geophys Res 105:12181–12192. https://doi.org/10.1029/2000JD900085
5. Hosokawa K, Ogawa Y (2015) Ionospheric variation during pulsating aurora. J Geophys Res 120:5943–5957. https://doi.org/10.1002/2015JA021401
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