Japan Geoscience Union Meeting 2014

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Poster

Symbol P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM36_28PO1] Physics and Chemistry in the Atmosphere and Ionosphere

Mon. Apr 28, 2014 6:15 PM - 7:30 PM Poster (3F)

Convener:*Otsuka Yuichi(Solar-Terrestrial Environment Laboratory, Nagoya University), Takuya Tsugawa(National Institute of Information and Communications Technology), Seiji Kawamura Seiji(National Institute of Information and Communications Technology)

6:15 PM - 7:30 PM

[PEM36-P14] Atmospheric Neutral Analyzer for mass-resolved velocity distribution measurements: Verification of mass analyzer

*Manabu SHIMOYAMA1, Ayuko HAYASHI1, Fumihiro ITO1, Masafumi HIRAHARA1 (1.STEL, Nagoya University)

Keywords:neutral upper atomosphere, velocity distribution function, mass analysis

In order to understand the temporal and spatial variability of the ionosphere-thermosphere system, simultaneous measurements of the composition and density of the neutral atmosphere and the velocity distribution of individual species are essential. However, most conventional types of instruments for neutral atmosphere lack the simultaneous capability of measuring neutral atmospheric velocity and resolving neutral mass.We have designed the Atmospheric Neutral Analyzer (ANA) instrument to measure the detailed, mass-resolved 2-dimensional velocity distribution of neutral species, from which the corresponding density, mass composition, bulk velocity and temperature were derived. In this presentation, we will report the results from laboratory experiments for the performance verification on the prototype of mass analyzer along with the detailed and overall design determined by numerical simulation.