Blog
- Air bubbles in submerged optical sensors: mitigation techniquesSubmerged optical instruments provide rapid measurements of turbidity, suspended solids, and sediment movement in rivers, lakes, estuaries, and coastal waters.…
- Calibration Verification Using Secondary Standards in the FieldReliable optical measurements depend on more than a successful factory calibration. Turbidity monitors and suspended-solids sensors operate in environments…
- Groundwater Profiling for Vertical Hydraulic Gradient DeterminationUnderstanding how groundwater moves vertically is essential for identifying contaminant pathways, estimating exchange between aquifers and surface water, and…
- Real-Time Sediment Monitoring During Dam RemovalDam removal can restore fish passage, reconnect sediment transport, and improve river habitat, but the construction process may also release a substantial…
- Using Turbidity as a Proxy for Phosphorus Loading in Agricultural RunoffPhosphorus is an essential crop nutrient, yet excess phosphorus leaving agricultural land can accelerate algal growth, reduce dissolved oxygen, and impair…
- Preventing Biofilm Fouling on Optical Water-Quality SensorsOptical sensors provide fast, repeatable measurements of turbidity, suspended solids, and related water-quality conditions. Their value depends on a clear…
- How to Build a Custom Mooring for Long-Term Turbidity Sensor DeploymentsLong-term turbidity monitoring depends on much more than selecting a sensor with the required measurement range. The mooring must keep the optical head at a…
- Monitoring Sediment Movement In Glacial Meltwater StreamsGlacial meltwater streams transport a changing mixture of fine silt, clay, sand, and organic material from ice-covered catchments toward lakes, rivers, fjords,…
- The Role of Particle Shape in Optical Scattering and Sensor AccuracyOptical instruments estimate turbidity, suspended solids, or particle concentration by measuring how light interacts with material in water. The basic signal…
- Synchronizing Turbidity And Depth Data With A Data LoggerData logger configuration for synchronizing turbidity and depth measurements determines whether a monitoring project produces a meaningful profile of changing…