Distributed Temperature Sensing Technology for Stream Monitoring
Temperature is an important factor in streams ecosystems. Heat tracers have been used to characterize contaminant transport, infiltration rates and energy exchange with groundwater, the atmosphere and radiation. The dynamics of these complicated water bodies is also affected by seasonal and diurnal patterns making characterization particularly challenging. Utilizing temperature measurements that capture spatial and temporal variations at stream ecosystem interfaces provides a mechanism for detailed characterization.
DTS can provide continuous measurements in space and time of surface water bodies over large spatial scales. Robust optical fibre cables, suitable for streams are a cost effective means to map and determine the flow patterns affecting surface water temperatures and provide a mechanism to quantify groundwater discharge into the stream. Optical cables can be easily deployed either along streams with the degree of spatial characterization only limited by the amount of cable that is utilized. Cable can be deployed along the streambed for many kilometres and can also be locally installed in various formats including grids to provide high spatial coverage for temperature monitoring wherever it is required.
Silixa’s distributed temperature sensing technology can collect invaluable spatial and temporal data to characterize surface water groundwater interactions. Cable can be installed in a grid pattern (above) to maximize local spatial coverage or installed along many kilometres of streambed to maximize spatial extent.