Bias corrections of GOSAT SWIR XCO<SUB>2</SUB> and XCH<SUB>4</SUB> with TCCON data and their evaluation using aircraft measurement data - Archive ouverte HAL Access content directly
Journal Articles Atmospheric Measurement Techniques Year : 2016

Bias corrections of GOSAT SWIR XCO2 and XCH4 with TCCON data and their evaluation using aircraft measurement data

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Makoto Inoue
  • Function : Author
Isamu Morino
  • Function : Author
Osamu Uchino
  • Function : Author
Takahiro Nakatsuru
  • Function : Author
Yukio Yoshida
  • Function : Author
Tatsuya Yokota
  • Function : Author
Debra Wunch
  • Function : Author
Paul O. Wennberg
  • Function : Author
Coleen M. Roehl
  • Function : Author
David W. T. Griffith
  • Function : Author
Voltaire A. Velazco
  • Function : Author
Nicholas M. Deutscher
  • Function : Author
Thorsten Warneke
  • Function : Author
Justus Notholt
  • Function : Author
John Robinson
  • Function : Author
Frank Hase
  • Function : Author
Thomas Blumenstock
  • Function : Author
Markus Rettinger
  • Function : Author
Ralf Sussmann
  • Function : Author
Esko Kyrö
  • Function : Author
Rigel Kivi
  • Function : Author
Kei Shiomi
  • Function : Author
Shuji Kawakami
  • Function : Author
Martine de Mazière
  • Function : Author
Sabrina G. Arnold
  • Function : Author
Dietrich G. Feist
  • Function : Author
Erica A. Barrow
  • Function : Author
James Barney
  • Function : Author
Manvendra Dubey
  • Function : Author
Matthias Schneider
  • Function : Author
Laura T. Iraci
  • Function : Author
James R. Podolske
  • Function : Author
Patrick W. Hillyard
  • Function : Author
Toshinobu Machida
  • Function : Author
Yousuke Sawa
  • Function : Author
Kazuhiro Tsuboi
  • Function : Author
Hidekazu Matsueda
  • Function : Author
Colm Sweeney
  • Function : Author
Pieter P. Tans
  • Function : Author
Arlyn E. Andrews
  • Function : Author
Sebastien C. Biraud
  • Function : Author
Yukio Fukuyama
  • Function : Author
Jasna V. Pittman
  • Function : Author
Eric A. Kort
  • Function : Author
Tomoaki Tanaka
  • Function : Author

Abstract

We describe a method for removing systematic biases of column-averaged dry air mole fractions of CO2 (XCO2) and CH4 (XCH4) derived from short-wavelength infrared (SWIR) spectra of the Greenhouse gases Observing SATellite (GOSAT). We conduct correlation analyses between the GOSAT biases and simultaneously retrieved auxiliary parameters. We use these correlations to bias correct the GOSAT data, removing these spurious correlations. Data from the Total Carbon Column Observing Network (TCCON) were used as reference values for this regression analysis. To evaluate the effectiveness of this correction method, the uncorrected/corrected GOSAT data were compared to independent XCO2 and XCH4 data derived from aircraft measurements taken for the Comprehensive Observation Network for TRace gases by AIrLiner (CONTRAIL) project, the National Oceanic and Atmospheric Administration (NOAA), the US Department of Energy (DOE), the National Institute for Environmental Studies (NIES), the Japan Meteorological Agency (JMA), the HIAPER Pole-to-Pole observations (HIPPO) program, and the GOSAT validation aircraft observation campaign over Japan. These comparisons demonstrate that the empirically derived bias correction improves the agreement between GOSAT XCO2/XCH4 and the aircraft data. Finally, we present spatial distributions and temporal variations of the derived GOSAT biases.
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Dates and versions

insu-03727107 , version 1 (20-07-2022)

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Attribution - CC BY 4.0

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Makoto Inoue, Isamu Morino, Osamu Uchino, Takahiro Nakatsuru, Yukio Yoshida, et al.. Bias corrections of GOSAT SWIR XCO2 and XCH4 with TCCON data and their evaluation using aircraft measurement data. Atmospheric Measurement Techniques, 2016, 9, pp.3491-3512. ⟨10.5194/amt-9-3491-2016⟩. ⟨insu-03727107⟩
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