Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-9797-2019 |
The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network | |
Crowell, Sean1; 39;Dell, ChristopherW.2 | |
2019-08-02 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:15页码:9797-9831 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France; Canada; Scotland |
英文摘要 | The Orbiting Carbon Observatory-2 has been on orbit since 2014, and its global coverage holds the potential to reveal new information about the carbon cycle through the use of top-down atmospheric inversion methods combined with column average CO2 retrievals. We employ a large ensemble of atmospheric inversions utilizing different transport models, data assimilation techniques, and prior flux distributions in order to quantify the satellite-informed fluxes from OCO-2 Version 7r land observations and their uncertainties at continental scales. Additionally, we use in situ measurements to provide a baseline against which to compare the satellite-constrained results. We find that within the ensemble spread, in situ observations, and satellite retrievals constrain a similar global total carbon sink of 3.7 +/- 0.5 PgC yr(-1), and 1.5 +/- 0.6 PgC yr(-1) for global land, for the 2015-2016 annual mean. This agreement breaks down in smaller regions, and we discuss the differences between the experiments. Of particular interest is the difference between the different assimilation constraints in the tropics, with the largest differences occurring in tropical Africa, which could be an indication of the global perturbation from the 2015-2016 El Nino. Evaluation of posterior concentrations using TCCON and aircraft observations gives some limited insight into the quality of the different assimilation constraints, but the lack of such data in the tropics inhibits our ability to make strong conclusions there. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000478696200005 |
WOS关键词 | FOURIER-TRANSFORM SPECTROMETER ; VARIATIONAL DATA ASSIMILATION ; ATMOSPHERIC CO2 ; SATELLITE-OBSERVATIONS ; TRANSPORT MODEL ; XCO2 RETRIEVALS ; FIRE EMISSIONS ; NORTH-AMERICA ; COLUMN CO2 ; SURFACE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185905 |
专题 | 地球科学 |
作者单位 | 1.Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA; 2.Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80523 USA; 3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 4.NOAA, Earth Syst Res Lab, Boulder, CO USA; 5.Univ Paris Saclay, CEA, CNRS, LSCE,IPSL,UVSQ, F-91198 Gif Sur Yvette, France; 6.CALTECH, Jet Prop Lab, Pasadena, CA USA; 7.Univ Toronto, Dept Phys, Toronto, ON, Canada; 8.Univ Edinburgh, Sch GeoSci, Edinburgh, Midlothian, Scotland; 9.Univ Edinburgh, Natl Ctr Earth Observat, Edinburgh, Midlothian, Scotland; 10.Univ Space Res Assoc, Columbia, MD USA; 11.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 12.Environm & Climate Change Canada, Climate Res Div, Toronto, ON, Canada; 13.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Crowell, Sean,39;Dell, ChristopherW.. The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(15):9797-9831. |
APA | Crowell, Sean,&39;Dell, ChristopherW..(2019).The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(15),9797-9831. |
MLA | Crowell, Sean,et al."The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.15(2019):9797-9831. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论