Toward accurate CO2 and CH4 observations from GOSAT

A. Butz; S. Guerlet; O. Hasekamp; D. Schepers; A. Galli; I. Aben; C. Frankenberg; J. M. Hartmann; H. Tran; A. Kuze; G. Keppel-Aleks; G. Toon; D. Wunch; P. Wennberg; N. Deutscher; D. Griffith; R. MacAtangay; J. Messerschmidt; J. Notholt; T. Warneke

doi:10.1029/2011GL047888

Toward accurate CO₂ and CH₄ observations from GOSAT

A. Butz
, S. Guerlet
, O. Hasekamp
, D. Schepers
, A. Galli
, I. Aben
, C. Frankenberg
, J. M. Hartmann
, H. Tran
, A. Kuze
, G. Keppel-Aleks
, G. Toon
, D. Wunch
, P. Wennberg
, N. Deutscher
, D. Griffith
, R. MacAtangay
, J. Messerschmidt
, J. Notholt
, T. Warneke

Universität Karlsruhe/Forschungszentrum Karlsruhe
SRON - Netherlands Institute for Space Research
Science Division
Lab. Interuniversitaire Systemes
Japan Aerospace Exploration Agency
California Institute of Technology Division of Engineering and Applied Science
Faculty of Science, Medicine and Health
University of Bremen

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The column-average dry air mole fractions of atmospheric carbon dioxide and methane (X_CO2 and X_CH4) are inferred from observations of backscattered sunlight conducted by the Greenhouse gases Observing SATellite (GOSAT). Comparing the first year of GOSAT retrievals over land with colocated ground-based observations of the Total Carbon Column Observing Network (TCCON), we find an average difference (bias) of-0.05% and-0.30% for X_CO2 and X_CH4 with a station-to-station variability (standard deviation of the bias) of 0.37% and 0.26% among the 6 considered TCCON sites. The root-mean square deviation of the bias-corrected satellite retrievals from colocated TCCON observations amounts to 2.8 ppm for X_CO2 and 0.015 ppm for X _CH4. Without any data averaging, the GOSAT records reproduce general source/sink patterns such as the seasonal cycle of X_CO2 suggesting the use of the satellite retrievals for constraining surface fluxes.

langue originale	Anglais
Numéro d'article	L14812
journal	Geophysical Research Letters
Volume	38
Numéro de publication	14
Les DOIs	https://doi.org/10.1029/2011GL047888
état	Publié - 1 juil. 2011
Modification externe	Oui

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10.1029/2011GL047888

Contient cette citation

Butz, A., Guerlet, S., Hasekamp, O., Schepers, D., Galli, A., Aben, I., Frankenberg, C., Hartmann, J. M., Tran, H., Kuze, A., Keppel-Aleks, G., Toon, G., Wunch, D., Wennberg, P., Deutscher, N., Griffith, D., MacAtangay, R., Messerschmidt, J., Notholt, J., & Warneke, T. (2011). Toward accurate CO₂ and CH₄ observations from GOSAT. Geophysical Research Letters, 38(14), Article L14812. https://doi.org/10.1029/2011GL047888

@article{b1e1f57b566448ee84d522cc52cc260c,

title = "Toward accurate CO2 and CH4 observations from GOSAT",

abstract = "The column-average dry air mole fractions of atmospheric carbon dioxide and methane (XCO2 and XCH4) are inferred from observations of backscattered sunlight conducted by the Greenhouse gases Observing SATellite (GOSAT). Comparing the first year of GOSAT retrievals over land with colocated ground-based observations of the Total Carbon Column Observing Network (TCCON), we find an average difference (bias) of-0.05\% and-0.30\% for XCO2 and XCH4 with a station-to-station variability (standard deviation of the bias) of 0.37\% and 0.26\% among the 6 considered TCCON sites. The root-mean square deviation of the bias-corrected satellite retrievals from colocated TCCON observations amounts to 2.8 ppm for XCO2 and 0.015 ppm for X CH4. Without any data averaging, the GOSAT records reproduce general source/sink patterns such as the seasonal cycle of XCO2 suggesting the use of the satellite retrievals for constraining surface fluxes.",

author = "A. Butz and S. Guerlet and O. Hasekamp and D. Schepers and A. Galli and I. Aben and C. Frankenberg and Hartmann, \{J. M.\} and H. Tran and A. Kuze and G. Keppel-Aleks and G. Toon and D. Wunch and P. Wennberg and N. Deutscher and D. Griffith and R. MacAtangay and J. Messerschmidt and J. Notholt and T. Warneke",

year = "2011",

month = jul,

day = "1",

doi = "10.1029/2011GL047888",

language = "English",

volume = "38",

journal = "Geophysical Research Letters",

issn = "0094-8276",

number = "14",

}

Butz, A, Guerlet, S, Hasekamp, O, Schepers, D, Galli, A, Aben, I, Frankenberg, C, Hartmann, JM , Tran, H, Kuze, A, Keppel-Aleks, G, Toon, G, Wunch, D, Wennberg, P, Deutscher, N, Griffith, D, MacAtangay, R, Messerschmidt, J, Notholt, J & Warneke, T 2011, 'Toward accurate CO₂ and CH₄ observations from GOSAT', Geophysical Research Letters, VOL. 38, Numéro 14, L14812. https://doi.org/10.1029/2011GL047888

TY - JOUR

T1 - Toward accurate CO2 and CH4 observations from GOSAT

AU - Butz, A.

AU - Guerlet, S.

AU - Hasekamp, O.

AU - Schepers, D.

AU - Galli, A.

AU - Aben, I.

AU - Frankenberg, C.

AU - Hartmann, J. M.

AU - Tran, H.

AU - Kuze, A.

AU - Keppel-Aleks, G.

AU - Toon, G.

AU - Wunch, D.

AU - Wennberg, P.

AU - Deutscher, N.

AU - Griffith, D.

AU - MacAtangay, R.

AU - Messerschmidt, J.

AU - Notholt, J.

AU - Warneke, T.

PY - 2011/7/1

Y1 - 2011/7/1

N2 - The column-average dry air mole fractions of atmospheric carbon dioxide and methane (XCO2 and XCH4) are inferred from observations of backscattered sunlight conducted by the Greenhouse gases Observing SATellite (GOSAT). Comparing the first year of GOSAT retrievals over land with colocated ground-based observations of the Total Carbon Column Observing Network (TCCON), we find an average difference (bias) of-0.05% and-0.30% for XCO2 and XCH4 with a station-to-station variability (standard deviation of the bias) of 0.37% and 0.26% among the 6 considered TCCON sites. The root-mean square deviation of the bias-corrected satellite retrievals from colocated TCCON observations amounts to 2.8 ppm for XCO2 and 0.015 ppm for X CH4. Without any data averaging, the GOSAT records reproduce general source/sink patterns such as the seasonal cycle of XCO2 suggesting the use of the satellite retrievals for constraining surface fluxes.

AB - The column-average dry air mole fractions of atmospheric carbon dioxide and methane (XCO2 and XCH4) are inferred from observations of backscattered sunlight conducted by the Greenhouse gases Observing SATellite (GOSAT). Comparing the first year of GOSAT retrievals over land with colocated ground-based observations of the Total Carbon Column Observing Network (TCCON), we find an average difference (bias) of-0.05% and-0.30% for XCO2 and XCH4 with a station-to-station variability (standard deviation of the bias) of 0.37% and 0.26% among the 6 considered TCCON sites. The root-mean square deviation of the bias-corrected satellite retrievals from colocated TCCON observations amounts to 2.8 ppm for XCO2 and 0.015 ppm for X CH4. Without any data averaging, the GOSAT records reproduce general source/sink patterns such as the seasonal cycle of XCO2 suggesting the use of the satellite retrievals for constraining surface fluxes.

U2 - 10.1029/2011GL047888

DO - 10.1029/2011GL047888

M3 - Article

AN - SCOPUS:79960736085

SN - 0094-8276

VL - 38

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 14

M1 - L14812

ER -

Toward accurate CO2 and CH4 observations from GOSAT

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Toward accurate CO₂ and CH₄ observations from GOSAT