Quantitative analysis of spatiotemporal coverage and uncertainty decomposition in OCO-2/3 XCO2 across China
文献类型：期刊论文
| 作者 | Zhang, Lili1; Cheng, Tianhai1; Yue, Tianxiang2; Li, Shenshen1; Wilson, John Peter3 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2024-09-15 |
| 卷号 | 333页码:21 |
| 关键词 | OCO-2/3 Quantitative assessment Spatiotemporal coverage XCO2 uncertainty decomposition Regional scale |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2024.120636 |
| 英文摘要 | The Orbiting Carbon Observatory 2/3 (OCO-2/3) employs a full-physics inversion algorithm and estimates the column-averaged dry air mole fraction of carbon dioxide (XCO2). This research focuses on the spatiotemporal coverage and associated uncertainties of OCO-2/3's XCO2 measurements within the Chinese region. We undertook an extensive statistical examination of the daily, weekly, 16-day, and monthly spatiotemporal coverage of XCO2 across China, employing data from both OCO-2 and OCO-3 and their amalgamated datasets. Additionally, we used a posterior error analysis method to rigorously evaluate the uncertainties induced by various input parameters in the XCO2 inversion model across different regions in China. Our findings reveal that OCO-2's spatial coverage spans 2.3-53.8% in China at a spatial resolution of 1 degrees x 1 degrees, and OCO-3's spatial coverage spans 3.3 and 47.4% across these time scales in China. Notably, the combined coverage rates of both satellites are significantly higher, ranging from 5.4 to 72.6%. Our analysis also reveals a gradual decrease in XCO2 coverage and inversion rates from north to south and west to east across China. A significant portion of the uncertainties in OCO-2/3 XCO2 measurements, over 90%, were attributed to primary error sources such as instrument, aerosol, and CO2 prior profile. Aerosol-induced errors show regional variations, with higher levels observed in Southeast China. Compared to TCCON data, the accuracy of XCO2 measurements in the two Chinese sites was lower than the global average. Our research identifies the spatiotemporal distribution and uncertainty decomposition of carbon satellites at a regional scale in China, providing an essential reference for future research. |
| WOS关键词 | NEAR-INFRARED SENSOR ; RETRIEVAL ALGORITHM ; CO2 ; VALIDATION ; SPECTROMETER ; PERFORMANCE ; OBJECTIVES ; SCIAMACHY |
| 资助项目 | National Key Research and Development Program of China[2023YFB3907701] |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001257058300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206308]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Zhang, Lili |
| 作者单位 | 1.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Univ Southern Calif, Spatial Sci Inst, Los Angeles, CA 90089 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Lili,Cheng, Tianhai,Yue, Tianxiang,et al. Quantitative analysis of spatiotemporal coverage and uncertainty decomposition in OCO-2/3 XCO2 across China[J]. ATMOSPHERIC ENVIRONMENT,2024,333:21. |
| APA | Zhang, Lili,Cheng, Tianhai,Yue, Tianxiang,Li, Shenshen,&Wilson, John Peter.(2024).Quantitative analysis of spatiotemporal coverage and uncertainty decomposition in OCO-2/3 XCO2 across China.ATMOSPHERIC ENVIRONMENT,333,21. |
| MLA | Zhang, Lili,et al."Quantitative analysis of spatiotemporal coverage and uncertainty decomposition in OCO-2/3 XCO2 across China".ATMOSPHERIC ENVIRONMENT 333(2024):21. |
入库方式： OAI收割
来源：地理科学与资源研究所
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