日本地球惑星科学連合2022年大会

講演情報

[E] 口頭発表

セッション記号 A (大気水圏科学) » A-CG 大気海洋・環境科学複合領域・一般

[A-CG38] 衛星による地球環境観測

2022年5月23日(月) 13:45 〜 15:15 104 (幕張メッセ国際会議場)

コンビーナ:沖 理子(宇宙航空研究開発機構)、コンビーナ:本多 嘉明(千葉大学環境リモートセンシング研究センター)、高薮 縁(東京大学 大気海洋研究所)、コンビーナ:松永 恒雄(国立環境研究所地球環境研究センター/衛星観測センター)、座長:松永 恒雄(国立環境研究所地球環境研究センター/衛星観測センター)

14:45 〜 15:00

[ACG38-17] The Operational Observation of Hyperspectral Imager Suite (HISUI) in 2020 - 2021 and Early Achievements

*Tsuneo Matsunaga1、Akira Iwasaki2、Tetsushi Tachikawa3、Jun Tanii3、Osamu Kashimura3、Koichiro Mouri3、Hitomi Inada3、Satoshi Tsuchida4、Ryosuke Nakamura4Hirokazu YAMAMOTO4、Koki Iwai4 (1.Center for Global Environmental Research and Satellite Observation Center, National Institute for Environmental Studies、2.The University of Tokyo、3.Japan Space Systems、4.National Institute of Advanced Industrial Science and Technology)

キーワード:geology, bathymetry, agriculture, waste, greenhouse gas

Hyperspectral Imager Suite (HISUI) is a spaceborne imaging spectrometer funded by Ministry of Economy, Trade, and Industry, Japan. It consists of a reflective telescope and two spectrometers which cover the visible and near infrared region (VNIR, 0.4 - 1.0 µm) and the shortwave infrared region (SWIR, 1.0 - 2.5 µm). Each spectrometer consists of a grating and a two-dimensional detector. SWIR spectrometer has a Stirling cooler for the SWIR detector. HISUI's spatial resolution and swath are 20 x 31 m / pixel and 20 km.

HISUI was delivered to International Space Station (ISS) by Space-X's CRS-19 mission in December 2019. HISUI Exposed Payload System (EPS) including the hyperspectral imager, the structure, the thermal control system, the electrical system, and Mission Data Processor (MDP), was attached to Japan Experiment Module Exposed Facility (JEM EF) of ISS. HISUI Mission Data Recorder (MDR-PM) was installed on JEM Pressurized Module (PM). HISUI will be operated until FY2023.

HISUI's initial checkout process and tests of ground data system were successfully completed by October 2020, and its nominal operation was started. HISUI data are currently being acquired based on data acquisition requests from HISUI Project and principal investigators of HISUI Research Announcement. The total area of acquired HISUI data by December 2021 exceeded 110 M km2 and the data are being used in various application studies.

HISUI's application studies include, plastic materials, agriculture, coastal bathymetry, metal and rare earth element resources, oil and gas resources, and anthropogenic emissions of carbon dioxide and methane. Several mapping results from HISUI were compared to other satellite, airborne, and ground-based data to evaluate HISUI performance.

In this presentation, HISUI's status and early achievements based on the data operationally acquired in 2020 - 2021 will be introduced.