Development of a simple and small sampling system for stratospheric air

开发简单小型的平流层空气采样系统

• 批准号: 07554017
• 负责人: NAKAZAWA Takakiyo
• 金额: $ 7.55万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07554017/
• 关键词: stratosphere; trace gas; balloon; ozone depletion; climate change

For atmospheric environmental problems such as the depletion of stratospheric ozone and the global warming, it is indispensable to clarify variations of relevant trace gases in the stratosphere. However, our knowledge of this issue is still insufficient, due primarily to difficulties in their measurements. In this study, we developed a small and simple sampling system to collect stratospheric air.For designing our sampler, we launched a small balloon system and then recovered it at Syowa Station, Antarctica. Considering the results of this preliminary experiment, we decided to employ a GPS receiver for tracking the sampler, a Rawinsonde for backup and a radio beacon transmitter for searching the gondola after landing.The sampler developed in this study consists mainly of a sample container, a control circuit unit, batteries, a GPS receiver and a transmitter, and all parts were assembled in an aluminum frame with aluminum honeycomb for a shock absorber. The sampler was equipped with a t … More urn-over mechanism of the gondola to avoid contamination of sample air due to gases from the gondola. Total weight of the sampler was about 11 kg. The sample container with a volume of 15l was made of stainless steel, and its inner wall was electrically polished. Electromagnetic and manual valves, made of stainless steel, were attached in series to the container.A balloon system for the sampler was comprised mainly of a specially-designed 4.5 kg rubber balloon, a cross-type parachute, a gondola, a balloon burst sensor, a main rope cutter and a Rawinsonde. The distance between the balloon and the gondola was set to about 10 m, and a total weight of the system was approximately 17 kg. A new gas handling unit was also prepared to simplify the injection of He gas into the rubber balloon.The sampler developed was launched at Syowa Station in January 1997 and recovered after collecting stratospheric air at 20 km. In 1997, to improve the performance of the sampler, we also developed a method for making the inner wall of the container clearer and a new-type open/close valve which is actuated using gunpowder. Less

对于大气环境问题，例如平流层臭氧的消耗和全球变暖，必须阐明平流层中相关痕量气体的变化是必不可少的。但是，我们对这个问题的了解仍然不足，这是由于其测量难度的主要困难。在这项研究中，我们开发了一个小型且简单的采样系统来收集平流层空气。设计采样器，我们启动了一个小气球系统，然后在南极洲的Syowa Station恢复了它。考虑到该初步实验的结果，我们决定使用GPS接收器来跟踪采样器，一个用于备份的Rawinsonde和登录后的无线电信标发射器，用于搜索吊船。该研究中开发的采样器主要由样品容器组成，由一个样品容器组成，由一个控制电路，gps，一个a室和一个蜂蜜组成的蜂蜜组成和所有部分组成的蜂蜜组成部分，并且所有部分组成了一个蜂蜜，并且所有部分组成了一个蜂蜜，这些部分是组成的，所有部分组成了一个蜂蜜，这些部分是一个蜂蜜组成的部分，这些部分是一个蜂蜜组成的部分，这些部分是一个蜂蜜组成的部分，这些部分是一个蜂蜜的组成部分，并且所有部分组成了一个蜂蜜。减震器。采样器的样品容器具有15L的体积，由不锈钢制成，其内壁是电抛光的。由不锈钢制成的电子和手动阀串联连接到容器上。采样器的气球系统主要由专门设计的4.5千克橡胶气球，跨型降落伞，吊甲，吊船，一个气球突发传感器，主绳索切割器和Rawinsonde组成。气球和缆车之间的距离设置为约10 m，系统的总重量约为17 kg。还准备了一个新的气体处理单元，以简化将HE气体注入到橡胶气球中。开发的采样器于1997年1月在Syowa站发射，并在20公里收集平流层空气后恢复。 1997年，为了提高采样器的性能，我们还开发了一种方法，使容器的内壁更清晰，并使用火药激活的新型开放/关闭阀。较少的

项目成果

Sugawara et al.: "Vertical profile of the carbon isotopic ratio of stratospheric methone over Japan" Geophys.Rce.Lett.24. 2989-2992 (1997)

Sukawara 等人：“日本平流层甲烷碳同位素比的垂直剖面”Geophys.Rce.Lett.24。

H.Honda: "A newly developed grab sampling system for collecting stratospheric air over Antarctica" Antarctic Record. 40. 156-168 (1996)

H.Honda：“一种新开发的抓取采样系统，用于收集南极洲上空的平流层空气”《南极记录》。

Handa et al.: "Crogenic air Sampling system for measuvements of the concentrations of stractosphiric trace gases and their esotopic vatius over Antalotica" J.Geomagn,Geoelectr.48. 1145-1155 (1996)

Handa 等人：“Crogenic 空气采样系统，用于测量 Antalotica 上平流微量气体及其内位 vatius 的浓度”J.Geomagn，Geolectr.48。

Sugawara et al.: "Vertical profile of the carbon isotopic ratio of stratospheric methane over Japan" Geopys.Res.Lett. 24. 2989-2992 (1997)

Sukawara 等人：“日本平流层甲烷碳同位素比的垂直剖面”Geopys.Res.Lett。

Handa et al.: "A newly developed grad sampling system for collecting stratosphencair over Antaroting" Antarctic Record. 40. 156-168 (1996)

Handa 等人：“一种新开发的梯度采样系统，用于收集 Antaroting 上空的平流层”南极记录。