How Do You Monitor A Tidal River?
If water samples are taken from a river at 9am on consecutive days, it is reasonable to be able to directly compare analytical results, unless the water at the sampling location is tidal. This is because water quality is heavily affected by the state of the tide, which presents a significant monitoring challenge in the lower reaches of many rivers. To overcome this, scientists at the company Meteor Communications have developed a continuous monitoring and data management system that is able to remove the effects of tide and unveil the true underlying water quality.