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DOI | 10.1029/2020WR027228 |
Heat Dissipation Test with Fiber‐Optic Distributed Temperature Sensing to estimate Groundwater flux | |
Del Val Laura; Carrera Jesú; s; Pool Marí; a; Martí; nez Lurdes; Casanovas Carlos; Bour Olivier; Folch Albert | |
2021-02-06 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | We measure groundwater flux and thermal parameters around a borehole performing a heat dissipation test by heating the armour of a single fiber‐optic (FO) cable and interpreting the resulting heating curves with a new analytical method. The procedure is similar to thermal response tests, but benefitting from the high spatial and temporal resolution of Distributed Temperature Sensing (DTS) and lasting longer, so as to measure advective dissipation. Field installation relies on an innovative method in hydrogeology, which is based on the installation of the FO cable in the annular space of the well, close to the aquifer matrix. The proposed new analytical method, expands the traditional Moving Infinitesimal Line Source Model to account for the effects of the field set up and cable materials. In fact, we show that the resulting temperature build‐up goes through four periods easy to identify using the log derivative of temperature (dT/d(ln(t))): initial response, skin (cable insulation), conduction dominated and advection dominated. We test the proposed method in an unconsolidated shallow aquifer with controlled pumping. Results are of the same order of magnitude of independent estimates of groundwater velocity. This article is protected by copyright. All rights reserved. |
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/313839 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Del Val Laura,Carrera Jesú,s,等. Heat Dissipation Test with Fiber‐Optic Distributed Temperature Sensing to estimate Groundwater flux[J]. Water Resources Research,2021. |
APA | Del Val Laura.,Carrera Jesú.,s.,Pool Marí.,a.,...&Folch Albert.(2021).Heat Dissipation Test with Fiber‐Optic Distributed Temperature Sensing to estimate Groundwater flux.Water Resources Research. |
MLA | Del Val Laura,et al."Heat Dissipation Test with Fiber‐Optic Distributed Temperature Sensing to estimate Groundwater flux".Water Resources Research (2021). |
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