Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China

Yao, Yingying; Xiang, Huang; Liu, Jie; Chen, Kewei; He, Xiaobo; Liu, Chuankun

doi:10.1007/s10040-015-1265-y

Cited by 17 publications

(11 citation statements)

References 18 publications

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“…Temperature has been widely used in analysing surface water and groundwater interactions as a natural tracer (Anderson, ; Constantz, ; Liu et al ., ; Yao et al ., ), based on the distinct temperature difference between surface water and groundwater. In this study, a new understanding about the recharge pattern of inter‐dune lakes (i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Contours of groundwater level (metres above the sea level) at the regional scale in the BJD were drawn according to Zhang et al (2015) Temperature has been widely used in analysing surface water and groundwater interactions as a natural tracer (Anderson, 2005;Constantz, 2008;Yao et al, 2015), based on the distinct temperature difference between surface water and groundwater. In this study, a new understanding about the recharge pattern of interdune lakes (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of groundwater–lake interaction by distributed temperature sensing in Badain Jaran Desert, Northwest China

Liu

Wang

et al. 2015

Hydrological Processes

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The Badain Jaran Desert is the second largest desert of China with a total area of 49 200 km2. At least 72 perennial lakes are scattered throughout the desert, sustaining a unique desert–lake ecosystem. Groundwater of various origins was believed to play an essential role in maintaining those desert lakes, but hydrological measurements are lacking due to difficult field conditions. This study applied the distributed temperature sensing technique to continuously measure temperature variations in one of the desert lakes – the Badain Lake – to identify groundwater discharge to the lake based on the temperature differences between groundwater and lake water. Because temperature may be influenced by various unforeseen and temporary factors, it is critical to discern those factors that may affect the temperature such as solar radiation and vertical temperature stratification and to ensure that the temperature variations of the lake water as detected by the distributed temperature sensing are mainly caused by groundwater discharge. A time window was identified during which the groundwater discharge is the dominant factor that determines the temperature pattern of the lake water. The results show that the temperature near the eastern and southeastern lakeshore of the eastern Badain Lake is colder than the average, indicating that this area is the main groundwater discharge zone. Near the northwestern lakeshore adjacent to a sand dune, a weak cold abnormal area was identified, indicating that the sand dune is another recharge source to the lake through channelling the local precipitation toward the lake. The contribution from the sand dune, however, appeared to be less than that from the regional groundwater flow. This study provides the first identification of the temperature abnormal areas, which imply groundwater discharges into desert lakes and contributes to a better understanding of the unique desert–lake ecosystem. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of groundwater–lake interaction by distributed temperature sensing in Badain Jaran Desert, Northwest China

Liu

Wang

et al. 2015

Hydrological Processes

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“…pesquisadores sobre as relações existentes na zona hiporreica entre água superficial e água subterrânea, onde o foco principal dessas pesquisas é a gestão sustentável dos recursos hídricos (BRUNKE & GONSER 1999;LAUTZ et al, 2009;YAO et al, 2015).…”

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Interação rio-aquífero e a meiofauna do ambiente hiporreico

et al. 2017

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Resumo -As interações que ocorrem entre a água superficial (rios e lagos) e água subterrânea envolvem uma série de processos que devem ser explorados no intuito de entender suas interligações, já que a taxa de recarga e a qualidade da água subterrânea dependem fortemente das características dessa interface. A zona de intercâmbio, conhecida por zona hiporreica é formada por uma camada subsuperficial de sedimentos entre o leito do rio e o aquífero, e suas características favorecem o estabelecimento de algumas espécies, destacando-se a meiofauna. Alguns processos biológicos responsáveis pela modificação da qualidade da água de recarga envolvem esses organismos. Um estudo sobre a comunidade da meiofauna hiporreica foi realizado em três pontos do rio Beberibe, Olinda -PE. A meiofauna esteve composta por um total de 4965 indivíduos, distribuídos em oito taxa, onde 97% dos organismos foram representados pelos rotíferas, nemátodas e anelídeos. A densidade média total variou entre 1446,3 indivíduos/ 10 cm 2 no verão e 12,1 indivíduos/ 10 cm 2 no inverno. A estrutura da comunidade foi correlacionada às variáveis: inverno, verão e granulometria dos sedimentos e o conjunto desses fatores refletiu-se nas características da meiofauna hiporreica do trecho estudado do rio Beberibe-PE. Tanto no verão como no inverno, os pontos onde as densidades de grupos foram mais significativas, foram as dominadas pelas frações arenosas. Palavras-chave:Interação água subterrânea -água superficial. Meiofauna hiporreica. Qualidade da água de recarga.Abstract -The interactions that occur between surface water (rivers and lakes) and groundwater involve a number of processes that should be explored in order to understand their interconnections, since the rate of recharge and groundwater quality strongly depend on the characteristics of this interface. The area of interconnection, known as hyporheic zone is formed by a subsurface layer of sediment from the river bed and the aquifer, and its characteristics favor the establishment of some species, highlighting the meiofauna. Some biological processes responsible for modifying the recharge water quality involve those bodies. A study on hyporheic meiofauna community was performed at three points of Beberibe river, Olinda -PE. The meiofauna was composed of a total of 4965 individuals, distributed in eight taxa where 97% of organizations were represented by rotíferas, nematodes and annelids. The average total density varied between individuals 1446.3 / 10 cm 2 in the summer and 12.1 individuals / 10 cm 2 in winter. The community structure was correlated to the variables: winter, summer and grain size of the sediment and the combination of these factors were reflected in characteristics of hyporheic zone of Beberibe river -PE. Both in summer and in winter, the points where the densities groups were more significant were dominated by sandy fractions.

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“…[] and Yao et al . []. Temperatures were monitored using the DTS system for 31.5 h period from early afternoon on 27 July to late evening on 28 July 2012.…”

Section: Methodsmentioning

confidence: 99%

Assimilation of temperature and hydraulic gradients for quantifying the spatial variability of streambed hydraulics

Xiang

Andrews

Liu

et al. 2016

Water Resources Research

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Understanding the spatial and temporal characteristics of water flux into or out of shallow aquifers is imperative for water resources management and eco-environmental conservation. In this study, the spatial variability in the vertical specific fluxes and hydraulic conductivities in a streambed were evaluated by integrating distributed temperature sensing (DTS) data and vertical hydraulic gradients into an ensemble Kalman filter (EnKF) and smoother (EnKS) and an empirical thermal-mixing model. The formulation of the EnKF/EnKS assimilation scheme is based on a discretized 1D advection-conduction equation of heat transfer in the streambed. We first systematically tested a synthetic case and performed quantitative and statistical analyses to evaluate the performance of the assimilation schemes. Then a real-world case was evaluated to calculate assimilated specific flux. An initial estimate of the spatial distributions of the vertical hydraulic gradients was obtained from an empirical thermal-mixing model under steady-state conditions using a constant vertical hydraulic conductivity. Then, this initial estimate was updated by repeatedly dividing the assimilated specific flux by estimates of the vertical hydraulic gradients to obtain a refined spatial distribution of vertical hydraulic gradients and vertical hydraulic conductivities.Our results indicate that optimal parameters can be derived with fewer iterations but greater simulation effort using the EnKS compared with the EnKF. For the field application in a stream segment of the Heihe River Basin in northwest China, the average vertical hydraulic conductivities in the streambed varied over three orders of magnitude (5 3 10 21 to 5 3 10 2 m/d). The specific fluxes ranged from near zero (q z < 60.05 m/d) to 61.0 m/d, while the vertical hydraulic gradients were within the range of 20.2 to 0.15 m/m. The highest and most variable fluxes occurred adjacent to a debris-dam and bridge pier. This phenomenon is very likely the result of heterogeneous streambed hydraulic characteristics in these areas. Our results have significant implications for hyporheic micro-habitats, fish spawning and other wildlife incubation, regional flow and hyporheic solute transport models in the Heihe River Basin, as well as in other similar hydrologic settings. (2016), Assimilation of temperature and hydraulic gradients for quantifying the spatial variability of streambed hydraulics, Water Resour. PUBLICATIONS measurements and differential stream gauging in series of synoptic surveys [Becker et al., 2004] can provide estimations over relatively large reaches. The most commonly used methods, seepage meters and piezometers can measure and/or estimate the seepage flux directly. Admittedly, these instruments only provide point-in-space measurements, but they can also provide localized estimates through averaging a relatively small representative area of a streambed.

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Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China

Cited by 17 publications

References 18 publications

Analysis of groundwater–lake interaction by distributed temperature sensing in Badain Jaran Desert, Northwest China

Analysis of groundwater–lake interaction by distributed temperature sensing in Badain Jaran Desert, Northwest China

Interação rio-aquífero e a meiofauna do ambiente hiporreico

Assimilation of temperature and hydraulic gradients for quantifying the spatial variability of streambed hydraulics

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