气候变化领域集成服务门户(CCPortal): The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network

CCPortal

DOI	10.5194/acp-19-9797-2019
	The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network
	Crowell S.; Baker D.; Schuh A.; Basu S.; Jacobson A.R.; Chevallier F.; Liu J.; Deng F.; Feng L.; McKain K.; Chatterjee A.; Miller J.B.; Stephens B.B.; Eldering A.; Crisp D.; Schimel D.; Nassar R.; O'Dell C.W.; Oda T.; Sweeney C.; Palmer P.I.; Jones D.B.A.
发表日期	2019
ISSN	16807316
起始页码	9797
结束页码	9831
卷号	19 期号:15
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 3:70:5 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 No. 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. © Author(s) 2019.
语种	英语
scopus关键词	atmospheric chemistry; carbon dioxide; carbon sink; data assimilation; data inversion; ensemble forecasting; in situ measurement; satellite data; Africa
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144234
作者单位	University of Oklahoma, School of Meteorology, Norman, OK, United States; Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; NOAA Earth System Research Laboratory, Boulder, CO, United States; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91198, France; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Department of Physics, University of Toronto, Toronto, ON, Canada; School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom; National Centre for Earth Observation, University of Edinburgh, Edinburgh, United Kingdom; Universities Space Research Association, Columbia, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Climate Research Division, Environment and Clima...
推荐引用方式 GB/T 7714	Crowell S.,Baker D.,Schuh A.,et al. The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network[J],2019,19(15).
APA	Crowell S..,Baker D..,Schuh A..,Basu S..,Jacobson A.R..,...&Jones D.B.A..(2019).The 2015-2016 carbon cycle as seen from OCO-2 and the global in situ network.Atmospheric Chemistry and Physics,19(15).
MLA	Crowell S.,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).