Autonomous distributed temperature sensing for long-term heated applications in remote areas

Kurth, A.-M.; Dawes, Nicholas; Selker, John S.; Schirmer, Mario

doi:10.5194/gi-2-71-2013

Cited by 10 publications

(6 citation statements)

References 18 publications

(23 reference statements)

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“…The hydrogeology (i.e., the location, hydraulic conductivity, recharge, and discharge zones of local to regional aquifers) governs the overall spatio-temporal fluxes of surface water-groundwater exchange, and therefore the general gaining or losing character of rivers and river sections [42]. As discussed in the introduction, the HZ is the zone where flowpaths originate from and return to surface water.…”

Section: Physical Drivers Of Hyporheic Exchange Flowsmentioning

confidence: 99%

Is the Hyporheic Zone Relevant beyond the Scientific Community?

Lewandowski

Arnon

Banks

et al. 2019

Water

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131

102

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Rivers are important ecosystems under continuous anthropogenic stresses. The hyporheic zone is a ubiquitous, reactive interface between the main channel and its surrounding sediments along the river network. We elaborate on the main physical, biological, and biogeochemical drivers and processes within the hyporheic zone that have been studied by multiple scientific disciplines for almost half a century. These previous efforts have shown that the hyporheic zone is a modulator for most metabolic stream processes and serves as a refuge and habitat for a diverse range of aquatic organisms. It also exerts a major control on river water quality by increasing the contact time with reactive environments, which in turn results in retention and transformation of nutrients, trace organic compounds, fine suspended particles, and microplastics, among others. The paper showcases the critical importance of hyporheic zones, both from a scientific and an applied perspective, and their role in ecosystem services to answer the question of the manuscript title. It identifies major research gaps in our understanding of hyporheic processes. In conclusion, we highlight the potential of hyporheic restoration to efficiently manage and reactivate ecosystem functions and services in river corridors.

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Section: Physical Drivers Of Hyporheic Exchange Flowsmentioning

confidence: 99%

Is the Hyporheic Zone Relevant beyond the Scientific Community?

Lewandowski

Arnon

Banks

et al. 2019

Water

Self Cite

131

102

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“…This study used discrete temperature loggers along the fibre-optic cable to capture temporal variability. Recent developments in remote, automated DTS systems (e.g., 48,49 ) show promise for future studies to record distributed temperature measurements at regular intervals throughout the winter. Logistical issues remain with calibration of remote DTS systems, although these have been resolved in some studies by placing calibration cable coils in materials where temperature changes can be monitored accurately by reference instruments (e.g., within and at the base of a snowpack, 50 and in glacier ice 49 ).…”

Section: Applicability Of Dts For Investigation Of Mountain Permafrostmentioning

confidence: 99%

Application of distributed temperature sensing for mountain permafrost mapping

Harrington

2019

Permafrost & Periglacial

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Permafrost distribution in mountains is typically more heterogeneous relative to low‐relief environments due to greater variability in the factors controlling the ground thermal regime, such as topography, snow depth, and sediment grain size (e.g., coarse blocks). Measuring and understanding the geothermal variability in high mountains remains challenging due to logistical constraints. This study presents one of the first applications of distributed temperature sensing (DTS) in periglacial environments to measure ground surface temperatures in a mountain permafrost area at much higher spatial resolution than possible with conventional methods using discrete temperature sensors. DTS measures temperature along a fibre‐optic cable at high spatial resolution (i.e., ≤ 1 m). Its use can be limited by power supply and calibration requirements, although recent methodological developments have relaxed some of these restrictions. Spatially continuous DTS measurements at a studied rock glacier provided greater resolution of geothermal variability and facilitated the interpretation of bottom temperature of snowpack data to map patchy permafrost distribution. This research highlights the potential for DTS to be a useful tool for permafrost mapping, ground thermal regime interpretation, conceptual geothermal model development, and numerical model evaluation in areas of heterogeneous mountain permafrost.

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“…In this paper we discuss the results gained from investigations with distributed temperature sensing (DTS), a fibreoptical method for temperature measurements along a glass fibre (Kurth et al, 2013;Selker et al, 2006a, b). Fibre-optic cables were either installed directly on top or in ca.…”

Section: Introductionmentioning

confidence: 99%

How effective is river restoration in re-establishing groundwater–surface water interactions? – A case study

Kurth

Weber

Schirmer

2015

Hydrol. Earth Syst. Sci.

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Abstract. In this study, we investigated whether river restoration was successful in re-establishing groundwater-surface water interactions in a degraded urban stream. Restoration measures included morphological changes to the river bed, such as the installation of gravel islands and spur dykes, as well as the planting of site-specific riparian vegetation. Standard distributed temperature sensing (DTS) and novel active and passive DTS approaches were employed to study groundwater-surface water interactions in two reference streams and an experimental reach of an urban stream before and after its restoration. Radon-222 analyses were utilized to validate the losing stream conditions of the urban stream in the experimental reach. Our results indicated that river restoration at the study site was indeed successful in increasing groundwater-surface water interactions. Increased surface water downwelling occurred locally at the tip of a gravel island created during river restoration. Hence, the installation of in-stream structures increased the vertical connectivity and thus groundwater-surface water interactions. With the methods presented in this publication, it would be possible to routinely investigate the success of river restorations in re-establishing vertical connectivity, thereby gaining insight into the effectiveness of specific restoration measures. This, in turn, would enable the optimization of future river restoration projects, rendering them more cost-effective and successful.

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Autonomous distributed temperature sensing for long-term heated applications in remote areas

Cited by 10 publications

References 18 publications

Is the Hyporheic Zone Relevant beyond the Scientific Community?

Is the Hyporheic Zone Relevant beyond the Scientific Community?

Application of distributed temperature sensing for mountain permafrost mapping

How effective is river restoration in re-establishing groundwater–surface water interactions? – A case study

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