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Title: Bias corrections of GOSAT SWIR XCO 2 and XCH 4 with TCCON data and their evaluation using aircraft measurement data

We describe a method for removing systematic biases of column-averaged dry air mole fractions of CO 2 (XCO 2) and CH 4 (XCH 4) 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 XCO 2 and XCH 4 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 XCO 2/XCH 4 and the aircraft data. Finally, we present spatial distributions and temporal variations of the derived GOSAT biases.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [4] ;  [5] ;  [5] ;  [6] ;  [7] ;  [7] ;  [8] ;  [9] ;  [10] ;  [10] ;  [11] ;  [11] more »;  [12] ;  [12] ;  [13] ;  [13] ;  [14] ;  [15] ;  [15] ;  [16] ;  [16] ;  [17] ;  [10] ;  [18] ;  [18] ;  [19] ;  [2] ;  [20] ;  [20] ;  [20] ;  [21] ;  [21] ;  [21] ;  [22] ;  [23] ;  [24] ;  [25] ;  [26] « less
  1. National Institute for Environmental Studies (NIES), Tsukuba (Japan); Akita Prefectural Univ., Akita (Japan)
  2. National Institute for Environmental Studies (NIES), Tsukuba (Japan)
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States); Univ. of Toronto, Toronto, ON (Canada)
  4. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  5. Univ. of Wollongong, NSW (Australia)
  6. Univ. of Wollongong, NSW (Australia); Univ. of Bremen, Bremen (Germany)
  7. Univ. of Bremen, Bremen (Germany)
  8. National Institute of Water and Atmospheric Research, Lauder (New Zealand)
  9. National Institute of Water and Atmospheric Research, Lauder (New Zealand); Lab. de Meteorologie Dynamique, Palaiseau (France)
  10. Karlsruhe Institute of Technology, Karlsruhe (Germany)
  11. Karlsruhe Institute of Technology, Garmisch-Partenkirchen (Germany)
  12. Finnish Meteorological Institute (FMI), Sodankyla (Finland)
  13. Japan Aerospace Exploration Agency (JAXA), Tsukuba (Japan)
  14. Belgian Institute for Space Aeronomy (IASB-BIRA), Brussels (Belgium)
  15. Max Planck Institute for Biogeochemistry (MPI-BGC), Jena (Germany)
  16. Ivy Tech Community College of Indiana, Indianapolis, IN (United States)
  17. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  18. NASA Ames Research Center, Moffett Field, CA (United States)
  19. NASA Ames Research Center, Moffett Field, CA (United States); Bey Area Environmental Research Institute, Petaluma, CA (United States)
  20. Meteorological Research Institute (MRI), Tsukuba (Japan)
  21. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States)
  22. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  23. Japan Meteorological Agency, Tokyo (Japan)
  24. Harvard Univ., Cambridge, MA (United States)
  25. Jet Propulsion Lab., Pasadena, CA (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
  26. National Institute for Environmental Studies (NIES), Tsukuba (Japan); Japan Aerospace Exploration Agency (JAXA), Tsukuba (Japan); NASA Ames Research Center, Moffett Field, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Atmospheric Measurement Techniques (Online)
Additional Journal Information:
Journal Name: Atmospheric Measurement Techniques (Online); Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 1867-8548
Publisher:
European Geosciences Union
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES
OSTI Identifier:
1379543