 |
| Titel |
Improvement of the retrieval algorithm for GOSAT SWIR XCO2 and XCH4 and their validation using TCCON data |
| VerfasserIn |
Y. Yoshida, N. Kikuchi, I. Morino, O. Uchino, S. Oshchepkov, A. Bril, T. Saeki, N. Schutgens, G. C. Toon, D. Wunch, C. M. Roehl, P. O. Wennberg, D. W. T. Griffith, N. M. Deutscher, T. Warneke, J. Notholt, J. Robinson, V. Sherlock, B. Connor, M. Rettinger, R. Sussmann, P. Ahonen, P. Heikkinen, E. Kyrö, J. Mendonca, K. Strong, F. Hase, S. Dohe, T. Yokota |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1867-1381
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 6, no. 6 ; Nr. 6, no. 6 (2013-06-07), S.1533-1547 |
| Datensatznummer |
250017910
|
| Publikation (Nr.) |
 copernicus.org/amt-6-1533-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| The column-averaged dry-air mole fractions of carbon dioxide and methane
(XCO2 and XCH4) have been retrieved from Greenhouse gases
Observing SATellite (GOSAT) Short-Wavelength InfraRed (SWIR) observations
and released as a SWIR L2 product from the National Institute for
Environmental Studies (NIES). XCO2 and XCH4 retrieved using the
version 01.xx retrieval algorithm showed large negative biases and standard
deviations (−8.85 and 4.75 ppm for XCO2 and −20.4 and 18.9 ppb
for XCH4, respectively) compared with data of the Total Carbon Column
Observing Network (TCCON). Multiple reasons for these error characteristics
(e.g., solar irradiance database, handling of aerosol scattering) are
identified and corrected in a revised version of the retrieval algorithm
(version 02.xx). The improved retrieval algorithm shows much smaller biases
and standard deviations (−1.48 and 2.09 ppm for XCO2 and −5.9
and 12.6 ppb for XCH4, respectively) than the version 01.xx. Also, the
number of post-screened measurements is increased, especially at northern
mid- and high-latitudinal areas. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|