Below is an image of a possible pipeline running across the main channel in the harbour mouth. The purple boundary on the chart background is a “no-anchorage” zone that has been marked out to enclose the pipeline’s possible location. Following the Keary’s survey, a feature that may be the pipe is visible in the imagery below (marked with a red arrow).
Other interesting seabed features include possible sand waves generated by the currents, scours that may have been carved out by circulating eddies and prominent outcrops of bedrock. These rock outcrops are interesting as they may be sheets of igneous rock that were intruded into the surrounding sedimentary rock many millions of years ago – otherwise known as igneous “dykes". They have been found elsewhere in this region by geologists mapping onshore.
Along with being interesting from a geological perspective, these rocks could also pose a serious hazard to navigation if a vessel were to venture away from the main shipping channel. Below is a series of images of the features mentioned above.
Scours on the river bed
Possible wave structures on the river bed.
Shoals and deeps where the river Barrow (top-right) meets the river Suir.
Below is a series of images of the two vessels at work in Waterford Harbour. The first image shows the RV Keary and RV Geo arriving at Dunmore East.
An aft view of the RV Keary, showing the A-frame which is used to deploy sound velocity probes to measure ocean temperature and salinity.
The first of the tall ships arrives in advance of the Tall Ships 2011 festival.