Parameterizing the Leaching Surface by Combining Curve-Fitting for Solute Breakthrough and for Spatial Solute Distribution
作者: E. BloemM. GeeG. H. Rooij
作者单位: 1Soil Physics, Ecohydrology and Groundwater Management, Environmental Sciences Group, Wageningen University
2Soil and Environment Division, Bioforsk, Norwegian Institute for Agricultural and Environmental Research
3Biometris, Wageningen University
4Soil Physics Department, Helmholtz Centre for Environmental Research—UFZ
刊名: Transport in Porous Media, 2012, Vol.92 (3), pp.667-685
来源数据库: Springer Nature Journal
DOI: 10.1007/s11242-011-9927-2
关键词: Solute transportUnsaturated zoneGroundwater contaminationBreakthrough curveSpatio-temporal distributionLeaching surfaceBeta distributionCurve-fitting
原始语种摘要: Abstract(#br)Multi-compartment samplers (MCSs) measure unsaturated solute transport in space and time at a given depth. Sorting the breakthrough curves (BTCs) for individual compartments in descending order of total solute amount and plotting in 3D produces the leaching surface. The leaching surface is a useful tool to organize, present, and analyze MCS data. We present a novel method to quantitatively characterize leaching surfaces. We fitted a mean pore-water velocity and a dispersion coefficient to each BTC, and then approximated their values by functions of the rank order of the BTCs. By combining the parameters of these functions with those of the Beta distribution fitted to the spatial distribution of solutes, we described an entire leaching surface by four to eight parameters. This...
全文获取路径: Springer Nature  (合作)
影响因子:1.551 (2012)