Reliable Sediment Measurements
We know how important it is to base prediction and design upon sound field investigation. ENVIROMUD specialises in determination of site-specific characteristics, properties and behaviour of sediment. These allow evaluation of parameters that govern sediment transport behaviour and patterns. Measurements are key to provide a real world understanding of local sediment behaviour and can then be used to make informed analysis, decisions and modelling.
Bed Sediment Properties
- Particle Size Analysis (PSA) – gravimetric sieving and pipette analysis
- Bulk Density, Dry Density
- Sediment Erodibility - shear strength, critical erosion shear stress (in-situ, on grab samples, or box cores)
- Chemical Constituents - pollutants, Organic Carbon, Nitrogen, Heavy Metals, Chlorophyll etc. (external analysis)
- Benthic Fauna– wet sieved macrofauna (external analysis)
- Sedimentation Parameters ( e.g. settling velocity)
Grab Sampling
Sampling and Observation
Shear Vane Erodibility Measurement
SedErode Erodibility Measurement
Water Column Conditions
- Turbidity – calibrated to Total Suspended Sediment
- Use of Submersible Autonomous Sensors
- In-situ Particle Settling Velocity
- Fluid Mud formation and dispersion
- Water Velocity and Bed Shear-Stress regimes
- Conductivity / Salinity / Temperature
Bottle Samples
Sensor Maintenance
Water Sampling
Bathymetry and Morphology
- Multibeam and LIDAR Survey (with Shoreline Surveys Ltd
- Bathymetry Mapping (with Shoreline Surveys Ltd)
- Morphological Features
Bathymetry mapping
Morphology