Files and links (2)
Published (Version of Record)CC BY V4.0, Open Access
Journal article
New potentiometric wireless chloride sensors provide high resolution information on chemical transport processes in streams
Water, Vol.9(7)
2017
Abstract
Quantifying the travel times, pathways, and dispersion of solutes moving through stream environments is critical for understanding the biogeochemical cycling processes that control ecosystem functioning. Validation of stream solute transport and exchange process models requires data obtained from in-stream measurement of chemical concentration changes through time. This can be expensive and time consuming, leading to a need for cheap distributed sensor arrays that respond instantly and record chemical transport at points of interest on timescales of seconds. To meet this need we apply new, low-cost (in the order of a euro per sensor) potentiometric chloride sensors used in a distributed array to obtain data with high spatial and temporal resolution. The application here is to monitoring in-stream hydrodynamic transport and dispersive mixing of an injected chemical, in this case NaCl. We present data obtained from the distributed sensor array under baseflow conditions for stream reaches in Luxembourg and Western Australia. The reaches were selected to provide a range of increasingly complex in-channel flow patterns. Mid-channel sensor results are comparable to data obtained from more expensive electrical conductivity meters, but simultaneous acquisition of tracer data at several positions across the channel allows far greater spatial resolution of hydrodynamic mixing processes and identification of chemical ‘dead zones’ in the study reaches.
Details
- Title
- New potentiometric wireless chloride sensors provide high resolution information on chemical transport processes in streams
- Authors/Creators
- K. Smettem (Author/Creator) - Murdoch UniversityJ. Klaus (Author/Creator) - Luxembourg Institute of Science and TechnologyN. Harris (Author/Creator) - University of SouthamptonL. Pfister (Author/Creator) - Luxembourg Institute of Science and Technology
- Publication Details
- Water, Vol.9(7)
- Publisher
- MDPI
- Identifiers
- 991005541397607891
- Murdoch Affiliation
- School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
102 File views/ downloads
47 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 8 Earth Sciences
- 8.140 Water Resources
- 8.140.450 Groundwater Modeling
- Web Of Science research areas
- Environmental Sciences
- Water Resources
- ESI research areas
- Environment/Ecology