Quality Optimization Method for Ambient CO2 Inversion of High Resolution Fourier Transform Infrared Spectrum
文献类型：期刊论文
| 作者 | Tian Yuan1; Sun You-wen1 ; Xie Pin-hua1,2; Liu Cheng2; Liu Wen-qing1,2; Liu Jian-guo1,2; Li Ang1; Hu Ren-zhi1; Wang Wei1; Zeng Yi1
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| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2017 |
| 卷号 | 37期号:1页码:48-53 |
| 关键词 | Fourier Transform Spectroscopy Optical Measurement Techniques Greenhouse Gas Carbon Dioxide Quality Optimization Method |
| DOI | 10.3964/j.issn.1000-0593(2017)01-0048-06 |
| 文献子类 | Article |
| 英文摘要 | CO2 retrievals with high quality facilitate resolving the sources and sinks of CO2 are helpful in predicting the trend in climate change and understanding the global carbon cycle. Based on a nonlinear least squares spectral fitting algorithm, we investigate the optimization method for CO2 products derived from ground-based high resolution Fourier transform infrared spectra. The CO2 vertical column densities (VCDs) are converted into column-averaged dry air mole fraction XCO2 by using the fitted O-2 VCDs, and thus the system errors (e.g. pointing errors, ILS errors, zero-level offset) are corrected greatly. The virtual daily variation which is related to air mass factor is corrected with an empirical model. The spectra screening rule proposed in this paper can greatly improve the XCO2 quality. The CO2 retrievals before and after the optimized method are compared using a typical CO2 daily time series. After using the optimized method, the fitting error is reduced by 60%, and the two-hours-averaged precision is similar to 0.071% (equals to similar to 0.28 ppm), which is perfectly in line with the TCCON (the total carbon column observing network) threshold, i.e., less than 0.1%. |
| WOS关键词 | ATMOSPHERIC CO2 ; GREENHOUSE GASES ; SPECTROMETRY ; CALIBRATION ; PROFILES ; MODEL ; GOSAT |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000392359300009 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/31727]  |
| 专题 | 合肥物质科学研究院_中科院安徽光学精密机械研究所 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Environm Opt & Technol, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Coll Environm Opt & Technol, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian Yuan,Sun You-wen,Xie Pin-hua,et al. Quality Optimization Method for Ambient CO2 Inversion of High Resolution Fourier Transform Infrared Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2017,37(1):48-53. |
| APA | Tian Yuan.,Sun You-wen.,Xie Pin-hua.,Liu Cheng.,Liu Wen-qing.,...&Zeng Yi.(2017).Quality Optimization Method for Ambient CO2 Inversion of High Resolution Fourier Transform Infrared Spectrum.SPECTROSCOPY AND SPECTRAL ANALYSIS,37(1),48-53. |
| MLA | Tian Yuan,et al."Quality Optimization Method for Ambient CO2 Inversion of High Resolution Fourier Transform Infrared Spectrum".SPECTROSCOPY AND SPECTRAL ANALYSIS 37.1(2017):48-53. |
入库方式： OAI收割
来源：合肥物质科学研究院
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