delware environmental institute

UDaily: UD researchers study reactions that occur when groundwater, saltwater meet in coastal aquifers

UDaily: UD researchers study reactions that occur when groundwater, saltwater meet in coastal aquifers

If you’ve ever floated through a cold patch of water while swimming in the ocean, you’ve experienced a phenomenon called submarine groundwater discharge (SGD). 

SGD occurs when groundwater seeps out of the seabed into the coastal ocean. SGD is often brackish as a result of fresh groundwater from land mixing with salty ocean water. The mixing of fresh and salty groundwater occurs in the beach aquifer, typically where the waves are breaking.