Session B.21: Flood Forecasting

Alastair McMillan, Royal Haskoning DHV

Given the lack of calibration data, did the project team work with local authorities and their partners to obtain observed data?

Reply by Cranston

Yes the project team worked with various partners in collating data for model verification purposes. Data included various tide level gauges operated by various authorities along the model reach, wind data from airfields and bridge authorities and offshore wave data from a renewable energy supplier.

Innes Thomson, Environment Agency

What effect does the Corran Narrows in Loch Linnhe have on tidal source in the upper loch?

Reply by Rodger

While it is likely the Corran Narrows has a great effect on the hydrodynamics of Loch Linnhe, the long-term analysis that has been used to develop the statistical model that drives the FWS does not resolve individual currents at this point. Rather, using water levels and predicted surge at Oban, the resulting water levels at Corpach, Fort William and Caol (on the other side of Corran) can be predicted based on historic trends.