JM Coastal specialises in developing robust and accurate tidal models calibrated to tide gauge observations.

Tides are the continuous rise and fall in sea level caused by the gravitational force of the Moon, the Sun and the rotation of the Earth. This effect is amplified on the continental shelf so that many coastal regions experience large sea level variations which are the dominant driver of coastal processes.

Coastal processes affected by the tide include:

• Wave height at the coast
• Estuarine mixing and pollutant dispersal
• Sediment transport patterns
• Channel navigation and shipping
• Storm surge generation and coastal elevation

The tides are a predictable phenomena and any coastal or estuarine modelling study in a region of significant tidal range should inlude an accurate and well calibrated tidal model as standard. We can use a range of modelling tools and software such as TELEMAC-2D and MIKE21FM, and utilise bathymetric data and available observations to build robust tidal models.