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スペクトル取得型光学オゾンゾンデ観測による成層圏オゾン, 二酸化窒素高度分布導出
https://doi.org/10.20637/JAXA-RR-19-002/0001
https://doi.org/10.20637/JAXA-RR-19-002/0001aac5e61b-e816-4819-a073-b5026d214032
名前 / ファイル | ライセンス | アクション |
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AA1930015001.pdf (1.6 MB)
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Item type | テクニカルレポート / Technical Report_02(1) | |||||
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公開日 | 2020-02-13 | |||||
タイトル | ||||||
タイトル | スペクトル取得型光学オゾンゾンデ観測による成層圏オゾン, 二酸化窒素高度分布導出 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | optical ozone sensor | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | NO2 stratospheric profile | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||
資源タイプ | technical report | |||||
ID登録 | ||||||
ID登録 | 10.20637/JAXA-RR-19-002/0001 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Profile retrieval of the stratospheric ozone and nitrogen dioxide with spectrometer type balloon-borne optical ozone sensor | |||||
著者 |
村田, 功
× 村田, 功× 野口, 克行× Murata, Isao× Noguchi, Katsuyuki |
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著者所属 | ||||||
東北大学 | ||||||
著者所属 | ||||||
奈良女子大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
Nara Women's University | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構研究開発報告: 大気球研究報告 en : JAXA Research and Development Report 巻 JAXA-RR-19-002, p. 1-8, 発行日 2020-02-13 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | オゾン(O3)のほかに二酸化窒素(NO2)等も観測可能な小型回折格子型分光計を用いたスペクトル取得型光学オゾンゾンデを開発し、2016 年9 月5 日に大樹町(北緯42.50度, 東経143.44度)で観測を行った。この装置では約280-500 nm の範囲を波長分解能0.7 nm で測定する。分光器は温度安定化のため保冷剤で5度C前後に保ち、NO2吸収量を確保するため日出時に下部成層圏(高度15 km付近)に到達するよう放球しこれに対応して水平方向からの光を取り込めるよう球面鏡を入射口の直上に設置した。O3、NO2 のカラム量及び高度分布の導出には差分吸光分光(DOAS)観測用に開発されたプログラムを応用し、460-490nm のスペクトルからO3については高度17.5-44.5 kmのスラントカラム量1.08 x 10(exp 20) [molecule / cm2]が誤差3.6%で得られた。同じくNO2についてはスラントカラム量4.9 x 10(exp 16) [molecule / cm2]が誤差9.9%で得られた。高度分布については、質のよいスペクトルを選別した上で高度3 km 毎に平均することで、O3, NO2ともに成層圏高度分布を導出することができた。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We have developed a balloon-borne optical ozone sensor and have observed the vertical distribution of upper stratospheric ozone since 1994 using a thin-film high-altitude balloon at Sanriku and Taiki, Japan. Recently, we developed a new sensor with small spectrometer to measure also other species such as NO2 and the measurement was carried out at Taiki (42.50 deg N, 143.44 deg E), Japan on September 5, 2016. The solar absorption spectra between 280 and 500 nm were measured at 0.7 nm resolution every two seconds. The spectrometer was put between two cold insulators with freezing point of 5C to keep the temperature stable. The balloon was launched before the sunrise to reach lower stratosphere (around 15 km in altitude) at sunrise and observe enough absorption of NO2. A spherical mirror and a Teflon diffuser were set in front of the optical fiber inlet to measure the solar spectra even when the solar zenith angle (SZA) is large (SZA less than 90). We utilized a program originally developed for the Differential Optical Absorption Spectroscopy (DOAS) method to retrieve the O3 and NO2 number densities from 460 - 490 nm. Slant columns between 17.5 - 44.5 km were successfully derived as 1.08 x 10(exp 20) [molecule / cm2] for O3 with error of 3.6% and 4.9 x 10(exp 16) [molecule / cm2] for NO2 with error of 9.9%. Vertical profiles of O3 and NO2 were also derived from the difference of the slant columns with altitude after the data selection from raw spectra to eliminate noisy spectra and averaged for 3 km altitude range. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSNONLINE | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2433-2216 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA1930015001 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-RR-19-002 |