The Australian Supersite Network (ASN) is part of the Terrestrial Ecosystem Research Network, an Australian Government initiative to collect, store, manage and share scientific data about Australian ecosystems.

ASN is part of TERN's Multi-scale Plot Networks (MSPN), which is being developed to deal with issues of scaling in ecosystem measurements - Supersites are the most intensive sites in this plot network.

The ASN seeks to understand how key ecosystems will respond to future environmental change by setting up a nationally consistent network of multidisciplinary and intensive ecosystem observatories.

Each Supersite is located in a significant Australian biome and the network spans a wide range of environmental conditions. The ASN collects detailed data sets on flora, fauna and biophysical processes from each Supersite.