Atmospheric Measurement Techniques (Oct 2012)

Level 1 algorithms for TANSO on GOSAT: processing and on-orbit calibrations

  • A. Kuze,
  • H. Suto,
  • K. Shiomi,
  • T. Urabe,
  • M. Nakajima,
  • J. Yoshida,
  • T. Kawashima,
  • Y. Yamamoto,
  • F. Kataoka,
  • H. Buijs

DOI
https://doi.org/10.5194/amt-5-2447-2012
Journal volume & issue
Vol. 5, no. 10
pp. 2447 – 2467

Abstract

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The Thermal And Near infrared Sensor for carbon Observation Fourier-Transform Spectrometer (TANSO-FTS) onboard the Greenhouse gases Observing SATellite (GOSAT) (nicknamed "Ibuki") has been providing global space-borne observations of carbon dioxide (CO<sub>2</sub>) and methane (CH<sub>4</sub>) since 2009. In this paper, we first describe the version V150.151 operational Level 1 algorithms that produce radiance spectra from the acquired interferograms. Second, we will describe the on-orbit characteristics and calibration of TANSO-FTS. Overall function and performance such as signal to noise ratio and spectral resolution are within design objectives. Correction methods of small on-orbit degradations and anomalies, which have been found since launch, are described. Lastly, calibration of TANSO Cloud and Aerosol Imager (TANSO-CAI) are summarized.