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Proceedings Paper

Development of GOSAT ground data system at NIES and the data processing strategy
Author(s): Hiroshi Watanabe; Hironari Ishihara; Keiichiro Ninomiya; Kaduo Hiraki; Tsuneo Matsunaga; Tatsuya Yokota
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Paper Abstract

GOSAT Project is a joint project of MOE (Ministry of the Environment), JAXA (Japan Aerospace Exploration Agency) and NIES (National Institute for Environmental Studies). Data acquired by TANSO-FTS (Fourier Transform Spectrometer) and TANSO-CAI (Cloud and Aerosol Imager) on GOSAT will be collected at Tsukuba Space Center at JAXA. The level 1A and 1B data of FTS (interferogram and spectra, respectively) and the level 1A of CAI (uncorrected data) will be generated at JAXA and will be transferred to GOSAT Data Handling facility (DHF) at NIES for further processing. Radiometric and geometric correction will be applied to CAI L1A data to generate CAI L1B data. From CAI L1B data, cloud coverage and aerosol information (CAI Level 2 data) will be estimated. The FTS data that is recognized to have "low cloud coverage" by CAI will be processed to generate column amount of carbon dioxide CO2 and methane CH4 (FTS Level 2 data). Level 3 data will be "global map column amount" of green house gases averaged in time and space. Level 4 data will be global distribution of carbon source/sink model and re-calculated forward model estimated by inverse model. Major data flow will be also described. The Critical Design Review of the DHF was completed in the end of July of 2007 to prepare the scheduled launch of GOSAT in December 2008. The data products can be searched and will be open to the public through GOSAT DHF after the data validation process.

Paper Details

Date Published: 17 October 2007
PDF: 8 pages
Proc. SPIE 6744, Sensors, Systems, and Next-Generation Satellites XI, 67440H (17 October 2007); doi: 10.1117/12.740705
Show Author Affiliations
Hiroshi Watanabe, National Institute for Environmental Studies (Japan)
Hironari Ishihara, National Institute for Environmental Studies (Japan)
Keiichiro Ninomiya, National Institute for Environmental Studies (Japan)
Kaduo Hiraki, National Institute for Environmental Studies (Japan)
Tsuneo Matsunaga, National Institute for Environmental Studies (Japan)
Tatsuya Yokota, National Institute for Environmental Studies (Japan)

Published in SPIE Proceedings Vol. 6744:
Sensors, Systems, and Next-Generation Satellites XI
Shahid Habib; Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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