GOSAT higher level products and the variation of retrieved XCO2 and XCH4

Hiroshi Watanabe; Akira Yuki; Fumie Kawazoe; Sayaka Kanekon; Masataka Ajiro; Tsuneo Matsunaga; Tatsuya Yokota

doi:10.1117/12.977374

9 November 2012 GOSAT higher level products and the variation of retrieved XCO₂ and XCH₄

Hiroshi Watanabe, Akira Yuki, Fumie Kawazoe, Sayaka Kanekon, Masataka Ajiro, Tsuneo Matsunaga, Tatsuya Yokota

Proceedings Volume 8528, Earth Observing Missions and Sensors: Development, Implementation, and Characterization II; 85280Y (2012) https://doi.org/10.1117/12.977374
Event: SPIE Asia-Pacific Remote Sensing, 2012, Kyoto, Japan

Abstract

During the 3.5-year operation of GOSAT (Greenhouse gases Observing SATellite), NIES GOSAT DHF (GOSAT Data Handling Facility of National Institute for Environmental Studies) has been producing some standard products from the data of TANSO-CAI (TANSO: Thermal And Near-infrared Sensor for carbon Observation; CAI: Cloud and Aerosol Imager) and TANSO-FTS (Fourier Transform Spectrometer). The standard data products of CAI Level 1B/1B+, FTS Level 2 SWIR (column amount of CO₂ and CH₄), FTS Level 2 TIR (profiles of CO₂ and CH₄ concentration), CAI Level 2 (cloud flag), FTS Level 3 (global map of XCO₂, XCH₄), and CAI Level 3 (global radiance and global reflectance) have been provided to general users. In addition, CAI Level 3 NDVI (Normalized Difference Vegetation Indices) and FTS Level 4A (flux of CO2) are released to GOSAT RA (Research Announcement) researchers and Model Group RA users, respectively. Since the FTS Level 2 SWIR data have been accumulated more than three years, global distribution and the timely changes of greenhouse gases are observed. In 2012, the version up of FTS Level 1B and FTS Level 2 SWIR has been carried out and the data quality of the new version has been significantly improved.

Citation Download Citation

Hiroshi Watanabe, Akira Yuki, Fumie Kawazoe, Sayaka Kanekon, Masataka Ajiro, Tsuneo Matsunaga, and Tatsuya Yokota "GOSAT higher level products and the variation of retrieved XCO₂ and XCH₄", Proc. SPIE 8528, Earth Observing Missions and Sensors: Development, Implementation, and Characterization II, 85280Y (9 November 2012); https://doi.org/10.1117/12.977374

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