DOI: 10.1002/2016GL067828
论文题名: A method for independent validation of surface fluxes from atmospheric inversion: Application to CO2
作者: Liu J. ; Bowman K.
刊名: Geophysical Research Letters
ISSN: 0094-9160
EISSN: 1944-8891
出版年: 2016
卷: 43, 期: 7 起始页码: 3502
结束页码: 3508
语种: 英语
英文关键词: atmospheric inversion
; CO2 flux inversion
; independent validation
Scopus关键词: Atmospheric movements
; Carbon
; Errors
; NASA
; Atmospheric inversions
; Atmospheric transport
; Flux measurements
; Independent validation
; Inversion problems
; Observing system simulation experiments
; Spatio-temporal scale
; Trace gas concentrations
; Carbon dioxide
英文摘要: Validating fluxes from an atmospheric inversion is a challenging problem because there are often no direct flux measurements at comparable spatiotemporal scales whereas there are often relevant independent observables, e.g., trace gas concentrations. In this paper, we propose a method that validates posterior fluxes by projecting the errors between posterior and prior observable model states and independent data to the spatiotemporal differences between posterior and prior fluxes with an atmospheric transport adjoint model. We prove theoretically the conditions for which observed error reductions lead to error reductions in fluxes. We apply this approach to the atmospheric CO2 inversion problem using the NASA Carbon Monitoring System Flux project with an Observing System Simulation Experiment. We show that the posterior fluxes are more accurate than the prior over the region that significantly contributes to the reduction of CO2 errors, which is consistent with the theory. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962663057&doi=10.1002%2f2016GL067828&partnerID=40&md5=bd4641c7a6f460ac42b190a22af63709
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10123
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Jet Propulsion Laboratory, Caltech, La Cañada Flintridge, CA, United States
Recommended Citation:
Liu J.,Bowman K.. A method for independent validation of surface fluxes from atmospheric inversion: Application to CO2[J]. Geophysical Research Letters,2016-01-01,43(7).