Blog
- Using groundwater profilers to map saltwater intrusionSaltwater intrusion occurs when seawater or naturally saline groundwater moves into a freshwater aquifer. The process is common in coastal areas where…
- Monitoring Sediment Resuspension During Dredge OperationMaintenance dredging keeps navigation channels open for container ships, bulk carriers, ferries and workboats, yet the excavation process can disturb fine…
- Managing Power for Long-Duration Optical Sediment MonitoringLong-duration optical sediment monitoring depends on a simple engineering truth: a sensor can collect excellent data only while the complete field system has…
- Deploying Turbidity Sensors in Pipes and ConduitsIndustrial effluent rarely behaves like a calm stream in an open channel. It moves through pressurised pipes, gravity conduits, pumping stations, sumps and…
- Minimum Detection Limits of Common Turbidity Sensors ComparedA turbidity sensor’s minimum detection limit is the lowest change in water clarity that it can distinguish reliably from electronic noise, optical interference…
- Optical Backscatter Sensors for Glacial Meltwater Sediment FluxGlacial meltwater carries a changing mixture of clay, silt, sand and organic material from ice, moraine and exposed rock. During warm periods or intense…
- Calibrating Suspended-Solids Sensors With Grab Samples In The FieldOptical suspended-solids sensors provide continuous information where laboratory testing alone cannot. A probe can record changes caused by dredging,…
- Using turbidity sensors to optimise sand filter backwash cyclesSand filtration is a dependable barrier in drinking-water treatment, wastewater reuse, aquaculture, and industrial process water. Its performance depends on a…
- Groundwater profiling in karst aquifers: challenges and optical sensor solutionsKarst aquifers are formed in soluble rock, usually limestone or dolomite, where groundwater moves through enlarged fractures, cavities, sinkholes and…
- Correcting turbidity data for changing particle refractive indexTurbidity is often treated as a direct measure of suspended sediment, yet an optical instrument measures scattered and absorbed light rather than mass…