Modelling Ecosystem Production in Space and Time

About the talk

Understanding how our terrestrial ecosystems function in terms of how much water they use and carbon they remove from the Atmosphere is key to understanding their role in mitigating climate change. Satellites provide information on the extent and phenology of terrestrial vegetation and, when combined with climate and observations of surface fluxes, provide a pathway to estimating continental and global scale gross primary production.

This presentation reveals how Australia’s Terrestrial Ecosystem Research Network (TERN) of Eddy Covariance towers, together with satellite and climate observations, have been used to develop a new approach to modelling ecosystem production for Australia and the World. This new approach incorporates updates to our understanding of the coordination theory of plant photosynthesis yet maintains the simple and proven “Light Use Efficiency” methodology often used for satellite based estimates.

Dr Bradley Evans

Dr Bradley Evans is Senior Lecturer in Big Environmental Data and Biosphere-Atmosphere Interactions at the Centre for Carbon, Water and Food, University of Sydney.

Bradley is experienced in regional climate modelling of land surface parameters and the use of terrestrial micro-meteorological observations and field spectroscopy. Bradley has used regional climate models down to a scale of 1km for over 100 years (hindcast) and developed post-processing systems to extract and perform GIS analysis on these data. Since 2012, Bradley has been developing and improving a new model for estimating Australian (and global) gross primary productivity, the model is called Ecosystem Production in Space and Time (ePiSaT) with Professor Colin Prentice. Since 2013 Bradley has been the Director of the Terrestrial Ecosystem Research Network Ecosystem Modelling and Scaling Infrastructure.