Estuarine and Hydraulic Characteristics for Twenty Two Tidal Bores in England, Scotland and Wales
摘要
Tidal bores are remarkable surges that travel inland in some estuaries on the highest tides and more than twenty occur in the UK, including the Severn Bore, which is one of the world’s highest. For the first time, this paper documents their key estuarine and hydraulic characteristics in a systematic way based on theoretical considerations and previously unreported observations. Results are presented for twenty two tidal bores with the largest reaching heights and celerities of 2–3 m and 4–5 ms−1 and travelling distances of 30 km or more. Comparisons are also made with observations from tidal bores worldwide and suggestions made for improving understanding of tidal bores in England, Scotland and Wales.