Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR030044 |
Field-scale subsurface flow processes inferred from continuous gravity monitoring during a sprinkling experiment | |
M. Reich; M. Mikolaj; T. Blume; A. Gü; ntner | |
2021-09-16 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | Field scale subsurface flow processes are difficult to observe and monitor. We investigated the value of gravity time series to identify subsurface flow processes by carrying out a sprinkling experiment in the direct vicinity of a superconducting gravimeter. We demonstrate how different water mass distributions in the subsoil affect the gravity signal and show the benefit of using the shape of the gravity response curve to identify different subsurface flow processes. For this purpose, a simple hydro-gravimetric model was set up to test different scenarios in an optimization approach, including the processes macropore flow, preferential flow, wetting front advancement, bypass flow and perched water table rise. Besides the gravity observations, electrical resistivity and soil moisture data were used for evaluation. For the study site, the process combination of preferential flow and wetting front advancement led to the best correspondence to the observations in a multi-criteria assessment. We argue that the approach of combining field-scale sprinkling experiments in combination with gravity monitoring can be transferred to other sites for process identification, and discuss related uncertainties including limitations of the simple model used here. The study stresses the value of advancing terrestrial gravimetry as an integrative and non-invasive monitoring technique for assessing hydrological states and dynamics. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/338736 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | M. Reich,M. Mikolaj,T. Blume,et al. Field-scale subsurface flow processes inferred from continuous gravity monitoring during a sprinkling experiment[J]. Water Resources Research,2021. |
APA | M. Reich,M. Mikolaj,T. Blume,A. Gü,&ntner.(2021).Field-scale subsurface flow processes inferred from continuous gravity monitoring during a sprinkling experiment.Water Resources Research. |
MLA | M. Reich,et al."Field-scale subsurface flow processes inferred from continuous gravity monitoring during a sprinkling experiment".Water Resources Research (2021). |
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