- On 14th February 2018
- In Sediment Management, Water Management
- By William Coulet
Following terrain modelling of Blakeney channel in Autumn 2017, Exo were asked carry out an assessment of water velocity throughout the channel, providing us with an opportunity to build up a good understanding of the local hydrogeomorphology along this dynamic stretch of the north Norfolk coastline.
Braving the frosty and windy weather, we put our waders on and got to work! A number of Valeport 106 water velocity probes were deployed, mounted in frames fixed on the channel bed at various locations along the channel. This allowed continuous monitoring and logging of water speed, direction and depth at 1Hz resolution over both neap and spring tide periods, thereby providing with us a good understanding of water velocities within this tidal system and how this will likely affect future sediment dynamics.
The data revealed some interesting features of the local hydrodynamics, recognising the complex interactions between the tidal system and the local Morston Saltmarshes. The knowledge obtained is essential when planning potential long-term management solutions to maintain navigational safety within the channel and continuing our working partnership with the Blakeney Channel Coastal Community Team, we are busy working on the next steps to ensure the continued use and enjoyment of this iconic waterway. Watch this space to find out more!