DOI: 10.1029/2012JD017774
论文题名: 16-year simulation of arctic black carbon: Transport, source contribution, and sensitivity analysis on deposition
作者: Sharma S. ; Ishizawa M. ; Chan D. ; Lavoué D. ; Andrews E. ; Eleftheriadis K. ; Maksyutov S.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 2 起始页码: 943
结束页码: 964
语种: 英语
Scopus关键词: Atmospheric movements
; Deposition
; Sensitivity analysis
; Transport properties
; Uncertainty analysis
; Aerosol black carbon
; Atmospheric transport model
; Dry and wet depositions
; Environmental studies
; Model performance
; Model uncertainties
; Radiative impacts
; Source contributions
; Computer simulation
; aerosol
; arctic environment
; atmospheric deposition
; atmospheric modeling
; atmospheric transport
; biomass burning
; black carbon
; fossil fuel
; parameterization
; radiative forcing
; regional climate
; sensitivity analysis
; trend analysis
; Alaska
; Alert
; Arctic
; Barrow
; Canada
; Ellesmere Island
; Nunavut
; Queen Elizabeth Islands
; Spitsbergen
; Svalbard
; Svalbard and Jan Mayen
; United States
; Zeppelin Station
英文摘要: Arctic regional climate is influenced by the radiative impact of aerosol black carbon (BC) both in the atmosphere and deposited on the snow and ice covered surfaces. The NIES (National Institute for Environmental Studies) global atmospheric transport model was used, with BC emissions from mid-latitude fossil fuel and biomass burning source regions, to simulate BC concentrations with 16 year period. The model-simulated BC agreed well with the BC observations, including the trends and seasonality, at three Arctic sites: Alert (Nunavut, Canada), Barrow (Alaska, USA), and Zepplin, Ny-Ålesund (Svalbard, Norway). The equivalent black carbon (EBC, absorption inferred BC) observations at the three Arctic locations showed an overall decline of 40% from 1990 to 2009; with most change occurring during early 1990s. Model simulations confirmed declining influence on near surface BC contribution by 70% , and atmospheric BC burden by one half from the Former Soviet Union (FSU) BC source region over 16 years. In contrast, the BC contribution from the East Asia (EA) region has little influence at the surface but atmospheric Arctic BC burden increased by 3 folds. Modelled dry deposition is dominant in the Arctic during wintertime, while wet deposition prevails at all latitudes during summer. Sensitivity analyses on the dry and wet deposition schemes indicate that parameterizations need to be refined to improve on the model performance. There are limitations in the model due to simplified parameterizations and remaining model uncertainties, which requires further exploration of source region contributions, especially from growing EA source region to Arctic BC levels in the future is warranted. © 2012. American Geophysical Union. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64032
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Climate Research Division, S and T Branch, Environment Canada, 4905 Dufferin Street, Toronto, ON, M3H5T4, Canada; DL Modelling and Research, Brampton, ON, Canada; CIRES, University of Colorado, Boulder, CO, United States; ERL, Demokritos National Center of Scientific Research, Institute of Nuclear Technology and Radiation Protection, Attiki, Greece; Center for Global Environmental Research National Institute for Environmental Studies 16-2 Onogawa, Tsukuba, Ibaraki, Japan
Recommended Citation:
Sharma S.,Ishizawa M.,Chan D.,et al. 16-year simulation of arctic black carbon: Transport, source contribution, and sensitivity analysis on deposition[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(2)