DOI: 10.1002/jgrd.50677
论文题名: Quantifying the uncertainties of advection and boundary layer dynamics on the diurnal carbon dioxide budget
作者: Pino D. ; Kaikkonen J.-P. ; Vilà-Guerau De Arellano J.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 16 起始页码: 9376
结束页码: 9392
语种: 英语
Scopus关键词: Advection
; Boundary layers
; Mixing
; Surface measurement
; Analytical expressions
; Boundary layer depth
; Boundary layer dynamics
; Boundary layer process
; Convective boundary layers
; Mixing ratios
; Numerical experiments
; Surface flux
; Carbon dioxide
; advection
; carbon dioxide
; convective boundary layer
; diurnal variation
; flux measurement
; mixing ratio
; uncertainty analysis
; Cabauw
; Netherlands
; Utrecht [Netherlands]
英文摘要: We investigate the uncertainties in the carbon dioxide (CO2 ) mixing ratio and inferred surface flux associated with boundary layer processes and advection by using mixed-layer theory. By extending the previous analysis presented by Pino et al. (2012), new analytical expressions are derived to quantify the uncertainty of CO2 mixing ratio or surface flux associated to, among others, boundary layer depth, early morning CO2 mixing ratio at the mixed layer or at the free atmosphere; or CO2 advection. We identify and calculate two sorts of uncertainties associated to the CO2 mixing ratio and surface flux: instantaneous and past (due to advection). The numerical experiments are guided and constrained by meteorological and CO2 observations taken at the Cabauw 213 m tower. We select 2 days (25 September 2003 and 12 March 2004) with a well-defined convective boundary layer but different CO2 advection contributions. Our sensitivity analysis shows that uncertainty of the CO2 advection in the boundary layer due to instantaneous uncertainties represents at 1600 LT on 12 March 2004 a contribution of 2 ppm and 0.072 mg m-2 s -1 in the uncertainty of the CO2 mixing ratio and inferred surface flux, respectively. Taking into account that the monthly averaged minimum CO2 surface flux for March 2004 was -0.55 mg m-2 s-1, the error on the surface flux is on the order of 10%. By including CO2 advection in the analytical expressions, we demonstrate that the uncertainty of the CO2 mixing ratio or surface flux also depends on the past uncertainties of the boundary layer depth. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63409
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: Department of Applied Physics, Universitat Politècnica de Catalunya - BarcelonaTech, Institute of Space Studies of Catalonia (IEEC-UPC), Esteve Terrades 5, 08860 Castelldefels Barcelona, Spain; Department of Applied Physics, Aalto University School of Science, Espoo, Finland; Meteorology and Air Quality Section, Wageningen University, Wageningen, Netherlands
Recommended Citation:
Pino D.,Kaikkonen J.-P.,Vilà-Guerau De Arellano J.. Quantifying the uncertainties of advection and boundary layer dynamics on the diurnal carbon dioxide budget[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(16)