The travel times of solutes at the Cape Cod Tracer Experiment: Data analysis, modeling, and structural parameters inference
The travel times of solutes at the Cape Cod Tracer Experiment: Data analysis, modeling, and structural parameters inference
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科德角示踪剂实验中溶质的传播时间：数据分析、建模和结构参数推断
DOI：
10.1029/96wr00016
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发表时间：
1997
影响因子：
5.4
通讯作者：
S. Ezzedine
中科院分区：
文献类型：
--
作者：
Y. Rubin;S. Ezzedine
本文提出了一种基于在含水层中不同采样点测得的浓度峰值到达时间来分析和解释溶质在非均质含水层中的走时的方法。该方法允许从大尺度含水层非均质性的影响中分离孔隙尺度弥散的影响。科德角现场实验的数据进行分析，我们发现，从旅行时间推断的水文地质参数的值匹配得很好，从直接解释的核心获得的值。走时的空间相关性的分析也允许推断的空间协方差的测井电导率和相关长度的各向异性比。在不同的旅行距离的飞机上进行的旅行时间的单独分析表明，测井电导率的方差随旅行距离的增加。
A method for analyzing and interpreting travel times of solutes in heterogeneous aquifers is presented based on the peak concentration arrival times as measured at various samplers in the aquifer. The method allows separation of the effects of pore‐scale dispersion from the effects of the large‐scale aquifer heterogeneity. An analysis of data from the Cape Cod field experiment is presented, and we found that the values of the hydrogeological parameters inferred from the travel times match very well the values obtained from direct interpretation of cores. Analysis of the spatial correlations of the travel times also allows inference of spatial covariances of the log conductivity and the anisotropy ratio of the correlation lengths. Separate analyses of the travel times carried over planes at different travel distances show that the variance of the log conductivity increases with travel distance.