f4bdb8f4-4f7e-403f-86c8-53dd2e0f642c urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-11-18T21:45:49 creation ISO 19115 2016 Australian mean land-surface temperature f4bdb8f4-4f7e-403f-86c8-53dd2e0f642c The mean land-surface temperature represents an important boundary condition for many geothermal studies. This boundary is particularly important to help constrain the models made to analyse resource systems, many of which are shallow in nature and observe relatively small thermal gradients. Consequently, a mean land-surface temperature map of the Australian continent has been produced from 13 years of MODIS satellite imagery, for the period 2003–2015. The map shows good agreement with independent methods of estimating mean land-surface temperature, including borehole surface-temperature extrapolation and long-term, near-surface ground measurements. In comparison to previously used methods of estimating mean land-surface temperature, our new estimates are up to 12 °C warmer. The MODIS-based method presented in this study provides spatially continuous estimates of land-surface temperature that can be incorporated as the surface thermal boundary condition in geothermal studies. The method is also able to provide a quantification of the uncertainties expected in the application of these estimates for the purposes of thermal modelling. Citation: Marcus W. Haynes, Frank G. Horowitz, Malcolm Sambridge, Ed J. Gerner, Graeme R. Beardsmore, Australian mean land-surface temperature, Geothermics, Volume 72, 2018, Pages 156-162, ISSN 0375-6505, https://doi.org/10.1016/j.geothermics.2017.10.008. {"type": "Polygon", "coordinates": [[[112.0, -44.0], [154.0, -44.0], [154.0, -9.0], [112.0, -9.0], [112.0, -44.0]]]} 112.0 154.0 -44.0 -9.0 EARTH SCIENCES MODIS Published_External heat flow land-surface temperature sinusoidal regression Download the Images (tif) documentDigital Download the Images (tif) ZIP Link to article documentDigital Link to article HTML