Abstract
Abstract. A prototype temperature-sensing pair of waders is introduced and tested. The water temperature at the streambed is interesting both for scientists studying the hyporheic zone and for, e.g., fishers spotting good fishing locations. A temperature sensor incorporated into waders worn by members of the public can give scientists an additional source of information on stream-water–groundwater interaction. A pair of waders was equipped with a thermistor and calibrated in the lab. Tests with both the waders and a reference thermometer in a deep polder ditch with a known localized groundwater contribution (i.e., boil) showed that the temperature-sensing waders are capable of identifying the boil location. However, the temperature-sensing waders showed a less pronounced response to changing water temperature compared to the reference thermometer, most likely due to the heat capacity of the person in the waders. This research showed that data from temperature-sensing waders worn by the public and shared with scientists can be used to decide where the most interesting places are to do more detailed and more expensive research.
Highlights
The zone surrounding a stream, the hyporheic zone, plays an important role in many hydrological and ecological processes
With this paper we aim to show that by using simple and low-cost temperature sensors mounted on the boots of a wading suit, reliable qualitative measurements can be done with a high temporal and spatial resolution
This paper focuses on testing whether temperature-sensing waders can be used to localize differences in groundwater temperature, such as those introduced by hyporheic exchange or groundwater boils
Summary
The zone surrounding a stream, the hyporheic zone, plays an important role in many hydrological and ecological processes. Interactions in the hyporheic zone between groundwater and surface water is often complex. Various methods exist to measure the groundwater– surface-water interactions within the hyporheic zone. By measuring the streambed temperatures, groundwater upwelling can be detected (Anderson, 2005; Rosenberry and LaBaugh, 2008). Many examples exist of measuring water bodies (e.g., Van Emmerik et al, 2013; Hilgersom et al, 2016) and groundwater discharge into streams or seepage
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