8787ec6f-1d9a-4f96-bb12-9dbf1630c591 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-25T07:03:18 creation ISO 19115 2016 Ground Cover Reference Sites Database of Tasmania 8787ec6f-1d9a-4f96-bb12-9dbf1630c591 The Ground Cover Reference Sites Database of Tasmania has been collected by Department of Primary Industries, Parks, Water and Environment, Tasmania as part of the Ground Cover Monitoring for Australia project. The data is being used to calibrate, validate and improve vegetation fractional cover products derived from remote sensing, in particular the satellite sensors MODIS and Landsat. The data is being used to improve the national fractional vegetation cover product of Guerschman et al. (2009) derived from the Moderate Resolution Imaging Spectroradiometer (MODIS). This algorithm enables national, monthly identification of ground cover separating the photosynthetic and non-photosynthetic components by applying a linear unmixing methodology for spectral reflectance every 8 days as 16-day composites. For confidence in its ground cover estimates, the results were verified in the field at selected sites across Australia to allow more extensive calibration, validation and verification of accuracy of the remote sensing method. The Ground Cover Reference Sites Database represents the results of the field validation of remotely determined cover measurements by observing cover along point intersects with a total of 300 points (or 200 points with crops). It also has additional observations and measures such as landscape features, fire evidence, erosion evidence, biotic disturbance evidence, biomass estimates, basal area measurements, soil features and dominant vegetation species, as well as site photographs. The Ground Cover Reference Sites Database focuses on sites in extensive grazing systems of the rangelands and, to a lesser extent, in the mixed farming or intensive land use zone. Field validation aims at obtaining a wide spatial coverage of sites, with limited site revisits for temporal coverage. {"type": "Polygon", "coordinates": [[[146.179981020036, -42.2714263467102], [147.562303856165, -42.2714263467102], [147.562303856165, -41.370756419895], [146.179981020036, -41.370756419895], [146.179981020036, -42.2714263467102]]]} 146.179981020036 147.562303856165 -42.2714263467102 -41.370756419895 Acetosella vulgaris Anthoxanthum sp. Arctotheca calendula Avena sativa Brassica rapa Brassica rapa subsp. rapa Bursaria spinosa Chenopodium album Cirsium sp. Dactylis glomerata Danthonia sp. Disturbance Erosion Eucalyptus ovata Eucalyptus viminalis Festuca sp. Flora Geology Holcus lanatus Hordeum marinum Hordeum vulgare Juncas sp. Land Cover Land Use Landscape Lithology Lolium sp. Lomandra longifolia Musa sp. Onopordum acanthium Papaveraceae sp. Plantago coronopus subsp. coronopus Poa labillardierei Rumex acetosa Soil Species Presence/Abundance Themeda triandra Trifolium sp. Trifolium subterranean Trifolium subterraneum Triticum sp. Vegetation Cover Vegetation Structure http://aekos.org.au/collection/gov.au/abares/gcrs_TAS documentDigital HTML Unnamed resource documentDigital PNG