Global and regional CO2 and CH4 flux distributions derived from the inversion analyses of GOSAT series data and their temporal variations

Tsuneo Matsunaga; Makoto Saito; Tazu Saeki; Hiroshi Takagi; Kazutaka Murakami; Shamil Maksyutov; Yosuke Niwa; Hiroshi Tanimoto; Hisashi Yashiro; Yosuke Yamashita

doi:10.1117/12.2680378

19 October 2023 Global and regional CO₂ and CH₄ flux distributions derived from the inversion analyses of GOSAT series data and their temporal variations

Tsuneo Matsunaga, Makoto Saito, Tazu Saeki, Hiroshi Takagi, Kazutaka Murakami, Shamil Maksyutov, Yosuke Niwa, Hiroshi Tanimoto, Hisashi Yashiro, Yosuke Yamashita

Author Affiliations +

Proceedings Volume 12729, Sensors, Systems, and Next-Generation Satellites XXVII; 127290F (2023) https://doi.org/10.1117/12.2680378
Event: SPIE Remote Sensing, 2023, Amsterdam, Netherlands

Abstract

Global carbon dioxide (CO₂) and methane (CH₄) flux distributions were derived by the inverse model analyses of CO₂ and CH₄ column-average concentration data from Greenhouse gases Observing SATellite (GOSAT) launched in 2009 and its successor (GOSAT-2) launched in 2018. GOSAT Level 4A CO₂ and CH₄ flux products are freely available from GOSAT Data Archive Service. Monthly net CO2 and CH₄ flux values are calculated for 42 land regions and 22 ocean regions for CO₂ and one ocean region for CH₄ using the inversion system with NIES TM atmospheric transport model. The preliminary version of GOSAT-2 Level 4A CO₂ product is being evaluated and will be released to the public in FY2023. GOSAT-2 Level 4A CH₄ product will be generated after the release of CO₂ product. GOSAT-2 Level 4A CO₂ product is generated using the inversion system named NICAM-based Inverse Simulation for Monitoring CO₂ (NISMON- CO₂) with about 2.5-degree grids and monthly time interval. The spatial distributions of small CO₂ sources and sinks will be shown by this product. GOSAT-GW, the third satellite in GOSAT Series to be launched in FY2024, will map CO₂ and CH₄ column concentrations with two spatial observation modes, Wide mode with 910 km swath and 10 km resolution, and Focus Mode with 90 km swath and 3 km or better resolution. Such image data will be used in the inversion analysis to obtain global and regional CO₂ and CH₄ net flux with higher spatial and temporal resolution than GOSAT and GOSAT-2.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tsuneo Matsunaga, Makoto Saito, Tazu Saeki, Hiroshi Takagi, Kazutaka Murakami, Shamil Maksyutov, Yosuke Niwa, Hiroshi Tanimoto, Hisashi Yashiro, and Yosuke Yamashita "Global and regional CO₂ and CH₄ flux distributions derived from the inversion analyses of GOSAT series data and their temporal variations", Proc. SPIE 12729, Sensors, Systems, and Next-Generation Satellites XXVII, 127290F (19 October 2023); https://doi.org/10.1117/12.2680378

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available