Three dimensional lower thrmosphere wind observations

2015 Fiscal Year Final Research Report

• Project/Area Number: 25610145
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Space and upper atmospheric physics
• Research Institution: National Institute of Polar Research
• Principal Investigator: Tsutsumi Masaki 国立極地研究所, 研究教育系, 准教授 (80280535)
• Co-Investigator(Kenkyū-buntansha): TOMIKAWA Yoshihiro 国立極地研究所, 研究教育系, 准教授 (20435499)
• Co-Investigator(Renkei-kenkyūsha): NAKAMURA Takuji 国立極地研究所, 研究教育系, 教授 (40217857) ; SATO Kaoru 東京大学, 理学系研究科, 教授 (90251496) ; SATO Toru 京都大学, 情報学研究科, 教授 (60162450)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 南極昭和基地大気レーダー / 流星エコー観測 / 中間圏 / 多チャンネル観測

Outline of Final Research Achievements

A meteor wind observation technique has been developed using the large aperture atmospheric radar at Syowa, Antarctica (PANSY radar) in order to strengthen the existing turbulence echo based mesosphere observation. This meteor technique is characterized by the use of 55 receiving channels. The unprecedented number in the history of meteor echo observations is 10 times as many as that of conventional meteor radars. The selection method of 55 receiving antennas from the whole antenna array and also algorithm to detect very faint meteor echoes in real-time have been developed and successfully tested using PANSY radar. A feasibility study has also been made to conduct meteor observations as a by-product of the turbulence echo measurement.

Free Research Field

中層大気物理学