The Terrestrial Ecosystem Research Network (TERN) collects, curates and publishes data on temporal and spatial changes in Australia's terrestrial ecosystems. Established in 2009 with Australian government NCRIS (National Collaborative Research Infrastructure Strategy) grant funding, TERN's Data Discovery Portal gives open access to over 2500 open data collections. TERN's data collections are derived from continental-scale gridded remote sensing, soil and landscape products, plot-based soil and vegetation surveillance monitoring sites, calibration and validation campaigns for remote sensing, and sensors such as phenocams, acoustic monitors and eddy-covariance flux towers. TERN develops standardised ecological monitoring protocols and systems for data collection, storage and management.