A SMALL STRATOSPHERIC GRAB-SAMPLER AND ITS GROUND SUPPORT SYSTEM FOR ANTARCTIC EXPERIMENTS

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概要

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• In order to measure the concentrations of various minor constituents and their isotopic ratios in the stratosphere over Antarctica, a simple grab sampling system was newly developed. The sampling system was designed to be launched by a small number of personnel under severe experimental conditions. Special attention was paid to minimize the contamination of sample air, as well as to allow easy handling of the system. The sampler consisted mainly of a 15l sample container with electromagnetic and manual valves, control electronics for executing the air sampling procedures and sending the position and status information of the sampler to the ground station, batteries and transmitter. All these parts were assembled in an aluminum frame gondola with a shock absorbing system for landing on sea ice. The sampler was equipped with a turn-over mechanism of the gondola to minimize contamination from materials in the gondola, as well as with a GPS receiver and a Rawinsonde for its tracking. Total weight of the sampler was about 11kg. The sampler was designed to launch using a 4.5-kg rubber balloon because of its easy handling and inflation operation compared with a plastic one. A cross parachute was used for its stable descending characteristics so that the shock absorber functioned properly at landing. To receive, display and store the position and status data of the sampling system at the ground station, a simple data acquisition system, with a portable receiver, a demodulator and a microcomputer, was also developed. A new gas handling system and procedures were prepared to simplify the injection of He gas into the balloon and the measurement of its lift. For recovery, two helicopters and conventional beacon searching systems were used; they were confirmed to work well in the recovery tests of the JARE 36th operations.

• 国立極地研究所の論文

著者

• Tanaka Yoichi

  Geosystems Inc.

• 張 紀久夫

  阪大基:福井工大工

• Morimoto S

  National Institute Of Polar Research Organization Of Information And Systems

• Hashida Gen

  National Institute Of Polar Research

• Nakazawa Takakiyo

  Center for Atmospheric and Oceanic Studies, Tohoku University

• Aoki Shuhji

  Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University

• Morimoto Shinji

  National Institute of Polar Research

• Nakazawa Takakiyo

  Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University

• Aoki Shuji

  Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University

• AOKI Shuhji

  National Institute of Polar Research

• Aoki Shuhji

  Center For Atmospheric And Oceanic Studies Faculty Of Science Tohoku University

• Yamanouchi Takashi

  National Institute For Polar Research

• Morimoto S

  National Inst. Polar Res. Tokyo Jpn

• 清水 明

  東大教養

• Aoki Shuhji

  Faculty Of Science Tohoku University

• 清水 明

  東大院総合文化・科技団

• Mae S

  National Institute Of Polar Research Research Organization Of Information And Systems

• HONDA Hideyuki

  The Institute of Space and Astronautical Science

• YAJIMA Nobuyuki

  The Institute of Space and Astronautical Science

• AKIYAMA Hiromitsu

  The Institute of Space and Astronautical Science

• Mae Shinji

  Department Of Applied Physics Hokkaido University

• Nakazawa Takakiyo

  Center For Atmospheric And Oceanic Studies Graduate School Of Sci. Tohoku Univ.

• Nakazawa Takakiyo

  Center For Atmospheric And Oceanic Studies Faculty Of Science

• Murayama Syohei

  National Institute For Resources And Environment

• 清水 明

  Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University

• Yajima Nobuyuki

  Graduate School Of Biostudies And Institute For Virus Research Kyoto University

• Nakazawa T

  Center For Atmospheric And Oceanic Studies Faculty Of Science

• Yamada T

  Geosystems Inc.

• Yamanouchi Takashi

  National Inst. Of Polar Res. And Dep. Of Polar Sci. The Graduate Univ. For Advanced Studies 10-3 Mid

• Yamanouchi Takashi

  National Institute Of Polar Research 10-3 Midoricho Tachikawa Tokyo Japan.

• Mae Shinji

  National Institute For Resources And Environment

• Morimoto Shinji

  National Institute For Resources And Environment

• Yamada Tomomi

  Geosystems Inc.

• SHIMIZU Akira

  Deparment of Physics, Rikkyo University

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