Radio Waves

This week saw the highest equinoctial spring tides of the year around the UK. Professor Philip Woodworth of the National Oceanography Centre appeared on Radio Lancashire and Radio Merseyside to explain what causes tides and also talk a little bit about why predicting future tides and calculating historical sea levels is important. For instance, tides played an large role in Julius Caesar’s decision to attempt a landing in Kent in 54BC and also the timing of the battle of Hastings.

A very large equinoctial spring tide will occur in September 2015, which should make for a powerful tidal bore in the Mersey Estuary.

Tidal bore on the River Mersey. Photo by Colin Bell.

Tidal bore on the River Mersey. Photo by Colin Bell.

Tidal bore on the River Mersey. Photo by Colin Bell.

Tidal bore on the River Mersey. Photo by Colin Bell.

You can hear Prof Woodworth using the listen again feature at the BBC Radio Lancashire website (02:41:00) and the BBC Radio Merseyside page (02:50:39).