Comparison of Atmospheric Carbon Dioxide Concentrations Based on GOSAT, OCO-2 Observations and Ground-Based TCCON Data
文献类型：期刊论文
| 作者 | Zheng, Jinhui1,2; Zhang, Huifang1,2; Zhang, Shuai1,2 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 15期号:21页码:23 |
| 关键词 | carbon dioxide GOSAT OCO-2 TCCON XCO2 climate change |
| DOI | 10.3390/rs15215172 |
| 通讯作者 | Zhang, Shuai(zhangshuai@igsnrr.ac.cn) |
| 英文摘要 | Carbon dioxide (CO2) is one of the most significant greenhouse gases, and its concentration and distribution in the atmosphere have always been a research hotspot. To study the temporal and spatial characteristics of atmospheric CO2 globally, it is crucial to evaluate the consistency of observation data from different carbon observation satellites. This study utilizes data from the Total Carbon Column Observing Network (TCCON) to verify the column-averaged dry air mole fractions of atmospheric CO2 (XCO2) retrieved by satellites from October 2014 to May 2016, specifically comparing the XCO2 distributions from the Greenhouse Gases Observing Satellite (GOSAT) and Orbiting Carbon Observatory 2 (OCO-2). Our analysis indicates a strong correlation between the TCCON and both the GOSAT (correlation coefficient of 0.85) and OCO-2 (correlation coefficient of 0.91). Cross-validation further reveals that the measurements of the GOSAT and OCO-2 are highly consistent, with an average deviation and standard deviation of 0.92 +/- 1.16 ppm and a correlation coefficient of 0.92. These differences remain stable over time, indicating that the calibration in the data set is reliable. Moreover, monthly averaged time-series and seasonal climatology comparisons were also performed separately over the six continents, i.e., Asia, North America, Europe, Africa, South America, and Oceania. The investigation of monthly XCO2 values across continents highlights greater consistency in Asia, North America, and Oceania (standard deviation from 0.15 to 0.27 ppm) as compared to Europe, South America, and Africa (standard deviation from 0.45 to 0.84 ppm). A seasonal analysis exhibited a high level of consistency in spring (correlation coefficient of 0.97), but lower agreement in summer (correlation coefficient of 0.78), potentially due to cloud cover and aerosol interference. Although some differences exist among the datasets, the overall findings demonstrate a strong correlation between the satellite measurements of XCO2. These results emphasize the importance of continued monitoring and calibration efforts to ensure the accurate assessment and understanding of atmospheric CO2 levels. |
| WOS关键词 | ANTHROPOGENIC CO2 EMISSIONS ; RETRIEVAL ALGORITHM ; GEOS-CHEM ; PART 1 ; XCO2 ; OBSERVATORY-2 ; VALIDATION ; SATELLITE ; EAST ; CH4 |
| 资助项目 | National Natural Science Foundation of China[41890854] ; Innovation Project of LREIS[KPI005] ; Chinese Academy of Sciences Class A Strategic Pilot Science and Technology Project[XDA23100202] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001106438800001 |
| 资助机构 | National Natural Science Foundation of China ; Innovation Project of LREIS ; Chinese Academy of Sciences Class A Strategic Pilot Science and Technology Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200191]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Shuai |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Jinhui,Zhang, Huifang,Zhang, Shuai. Comparison of Atmospheric Carbon Dioxide Concentrations Based on GOSAT, OCO-2 Observations and Ground-Based TCCON Data[J]. REMOTE SENSING,2023,15(21):23. |
| APA | Zheng, Jinhui,Zhang, Huifang,&Zhang, Shuai.(2023).Comparison of Atmospheric Carbon Dioxide Concentrations Based on GOSAT, OCO-2 Observations and Ground-Based TCCON Data.REMOTE SENSING,15(21),23. |
| MLA | Zheng, Jinhui,et al."Comparison of Atmospheric Carbon Dioxide Concentrations Based on GOSAT, OCO-2 Observations and Ground-Based TCCON Data".REMOTE SENSING 15.21(2023):23. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。