Title | ||
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Retrieval of Global Carbon Dioxide From TanSat Satellite and Comprehensive Validation With TCCON Measurements and Satellite Observations |
Abstract | ||
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To cope with global climate change and monitor global CO
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concentration distribution, the first Chinese carbon dioxide satellite (TanSat) has been successfully launched in December 2016. In this study, we implemented a CO
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retrieval scheme by calibrating the TanSat sun-glint (GL) mode spectra and adapting the Iterative Maximum
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Differential Optical Absorption Spectroscopy (IMAP-DOAS) algorithm for CO
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spectral retrieval. The global terrestrial CO
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total vertical column density (VCD) and column-averaged dry-air mole fractions of CO
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(
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) were simultaneously retrieved from TanSat GL spectral observations. Then, a comprehensive verification was performed between TanSat CO
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retrieval and other measurements including Total Carbon Column Observing Network (TCCON), the Japanese Greenhouse gases Observing SATellite (GOSAT), and the US Orbiting Carbon Observatory-2 (OCO-2). Further comparisons between our TanSat CO
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retrieval and ground-based FTIR measurements from TCCON indicated a good correlation with the mean bias of −0.78 ppm, the standard deviation at 1.75 ppm, and the Pearson correlation coefficient of 0.81. In addition, cross-satellite CO
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validations of TanSat with GOSAT and OCO-2 showed consistently spatiotemporal trends for both CO
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VCD and
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. In summary, we can conclude that the presented CO
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retrieval scheme has achieved global CO
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retrieval from TanSat GL mode spectra with high precision and accuracy, as suggested by the results of independent ground-based and satellite validations. |
Year | DOI | Venue |
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2022 | 10.1109/TGRS.2021.3066623 | IEEE Transactions on Geoscience and Remote Sensing |
Keywords | DocType | Volume |
CO₂,Iterative Maximum A Posteriori Differential Optical Absorption Spectroscopy (IMAP-DOAS),remote sensing,satellites,spectral analysis,TanSat,Xcₒ₂ | Journal | 60 |
ISSN | Citations | PageRank |
0196-2892 | 0 | 0.34 |
References | Authors | |
0 | 11 |
Name | Order | Citations | PageRank |
---|---|---|---|
Xinhua Hong | 1 | 0 | 0.34 |
Peng Zhang | 2 | 68 | 17.27 |
Yanmeng Bi | 3 | 0 | 1.01 |
Cheng Liu | 4 | 25 | 4.77 |
Youwen Sun | 5 | 0 | 0.68 |
Wei Wang | 6 | 202 | 58.31 |
Zeqing Chen | 7 | 0 | 0.34 |
Hao Yin | 8 | 0 | 0.34 |
Chengxin Zhang | 9 | 0 | 2.37 |
Yuan Tian | 10 | 0 | 0.34 |
Liu Jian-guo | 11 | 0 | 1.01 |