Water and sediment movement in the Alligator Rivers estuaries

This project was focused on the coastal and estuarine regions of the Alligator Rivers, which are wholly located within the world heritage area of Kakadu National Park. The pulse of large tides drives huge volumes of water and sediment in and out of the Alligator Rivers estuaries twice each day. The dynamic movement of water and sediment has a significant impact on the aquatic biodiversity of the region by creating different types of habitat. It also strongly influences water quality and light penetration, which in turn affects the growth of plants including algae.

This project created hydrodynamic, sediment transport, water quality and tide models for the Alligator Rivers estuaries. These models can be used to predict the impacts of a range of coastal change, land use and climate change scenarios. The models have already been used by other teams undertaking ecological research in the region.