DOI: 10.1029/2017JD028166
Scopus记录号: 2-s2.0-85046456616
论文题名: Inverse Estimation of an Annual Cycle of California's Nitrous Oxide Emissions
作者: Jeong S. ; Newman S. ; Zhang J. ; Andrews A.E. ; Bianco L. ; Dlugokencky E. ; Bagley J. ; Cui X. ; Priest C. ; Campos-Pineda M. ; Fischer M.L.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 9 起始页码: 4758
结束页码: 4771
语种: 英语
Scopus关键词: annual cycle
; anthropogenic effect
; anthropogenic source
; emission
; emission control
; estimation method
; greenhouse gas
; nitrous oxide
; ozone depletion
; seasonal variation
; California
; United States
英文摘要: Nitrous oxide (N2O) is a potent long-lived greenhouse gas (GHG) and the strongest current emissions of global anthropogenic stratospheric ozone depletion weighted by its ozone depletion potential. In California, N2O is the third largest contributor to the state's anthropogenic GHG emission inventory, though no study has quantified its statewide annual emissions through top-down inverse modeling. Here we present the first annual (2013–2014) statewide top-down estimates of anthropogenic N2O emissions. Utilizing continuous N2O observations from six sites across California in a hierarchical Bayesian inversion, we estimate that annual anthropogenic emissions are 1.5–2.5 times (at 95% confidence) the state inventory (41 Gg N2O in 2014). Without mitigation, this estimate represents 4–7% of total GHG emissions assuming that other reported GHG emissions are reasonably correct. This suggests that control of N2O could be an important component in meeting California's emission reduction goals of 40% and 80% below 1990 levels of the total GHG emissions (in CO2 equivalent) by 2030 and 2050, respectively. Our seasonality analysis suggests that emissions are similar across seasons within posterior uncertainties. Future work is needed to provide source attribution for subregions and further characterization of seasonal variability. ©2018. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113899
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Lawrence Berkeley National Laboratory, Berkeley, CA, United States; California Institute of Technology, Pasadena, CA, United States; Now at Bay Area Air Quality Management District, San Francisco, CA, United States; Department of Chemistry and Air Pollution Research Center, University of California, Riverside, CA, United States; Earth System Research Laboratory, NOAA, Boulder, CO, United States; Cooperative Institute for Research In Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Jeong S.,Newman S.,Zhang J.,et al. Inverse Estimation of an Annual Cycle of California's Nitrous Oxide Emissions[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(9)