"Water depth" refers to the distance between the surface of a body of water, such as a lake or ocean, and the bottom or floor of that water. It tells us how deep the water is at a particular point.
Extensive continental regions were flooded by shallow seas ranging in water depth from a few to little more than 100 metres (330 feet). (britannica.com)
A PowerPoint starter task for pupils to work in pairs and create a story to explain the graph of washing up water depth over time. (tes.com)
The maps obtained were found to be consistent with direct measurements of water depth carried out in wells. (sciencedaily.com)