High performance simulation of environmental tracers in heterogeneous domains.
作者： William P Gardner , Glenn Hammond , Peter Lichtner , None
DOI: 10.1111/GWAT.12148
关键词: Age distribution 、 Travel time 、 Age limit 、 TRACER 、 Groundwater 、 Hydrology 、 Environmental science 、 High performance simulation 、 Flow (psychology) 、 Soil science 、 Mean age
摘要: In this study, we use PFLOTRAN, a highly scalable, parallel, flow, and reactive transport code to simulate the concentrations of 3H, 3He, CFC-11, CFC-12, CFC-113, SF6, 39Ar, mean groundwater age in heterogeneous fields on grids with an excess 10 million nodes. We utilize computational platform concentration multiple tracers high-resolution, 2D 3D domains, calculate tracer-derived ages. Tracer-derived ages show systematic biases toward younger when distribution contains water older than maximum tracer age. The deviation from true increases increasing heterogeneity system. However, effect is diminished as travel time gets closer limit. Age distributions domains differ significantly domains. simulations decreased age, less variance for identical statistics. High-performance computing allows investigation systematics high-resolution providing understanding utilizing environmental information systems.
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