日本地球惑星科学連合2014年大会

講演情報

インターナショナルセッション(ポスター発表)

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM08_2PO1] Space Weather and Space Climate

2014年5月2日(金) 16:15 〜 17:30 3階ポスター会場 (3F)

コンビーナ:*片岡 龍峰(国立極地研究所)、海老原 祐輔(京都大学生存圏研究所)、草野 完也(名古屋大学太陽地球環境研究所)、清水 敏文(宇宙航空研究開発機構宇宙科学研究所)、三好 由純(名古屋大学太陽地球環境研究所)、浅井 歩(京都大学宇宙総合学研究ユニット)、佐藤 達彦(日本原子力研究開発機構)、陣 英克(情報通信研究機構)、伊藤 公紀(横浜国立大学大学院工学研究院)、宮原 ひろ子(武蔵野美術大学造形学部)

16:15 〜 17:30

[PEM08-P01] 航空機運航における宇宙天気情報

*阿久津 烈1浅田 和秋1 (1.日本乗員組合連絡会議)

Effects of exposure to cosmic-ray during aircraft operation are divided into exposure of aircrew and operational impact.

International Commision on Radiological Protection (ICRP) issued a recommendation to include occupational exposure of aircrew with a jet operated exposure from natural radiation source in 1990. Radiation Council consists of the Ministry of Education, Culture, Sports, Science and Technology, the Ministry of Health, Labour and Welfare, the Ministry of Land, Infrastructure, Transport and Tourism establised Guidelines for management of aircrew exposure to cosmic radiation in 2006. In response to
this, airlines keep record of assessed doses on each aircrew using Japanese Internet System for Calculation of Aviation Route Doses (JISCARD-EX) developed by National Institute of Radiological Sciences (NIRS).

Impacts of space weather on aircraft operations can be classified into communications and navigations.

For communicaton, it includes difficulties on HF radio due to Dellinger Phenomenon while flying out of range of VHF coverages
as international flight. And also includes difficulties on SATCOM voice communication and Controller Pilot Data Link Communication (CPDLC) in oceanic region.

Modern navigation by Global Navigation Satellite System (GNSS) is becoming mainstream. GNSS are used all phase of aircraft operation during on the ground, depareture, en-route, and approach. Future of operations aim high category precision approach using automatic approach and landing by GNSS even extremely low visibility until stop on runway. Cosmic-ray re-write
the data in memory known as soft error on electronic equipment onboard aircrafts.

Use of SpaceWeather forecast, how to provide the information to aircrew and how to make decisions are urgent consideration.

For these problems International Airways VolcanoWatch Operations Group (IAWOPSG) which one of operations group of International Civil Aviation Organization (ICAO) is making draft Concept of Operations (ConOps) for international space weather information in support of international air navigation. Adoption of ConOps is targeted for ICAO/WMO divisional meeting in 2014.