In this study, the researchers propose a reporting format for leaf-level gas exchange data and metadata to provide guidance to data contributors on how to store data in repositories to maximise their discoverability, facilitate their efficient reuse, and add value to individual datasets.
Prof. Primeau will present an inverse model to constrain the residual mean circulation of the ocean and to estimate rates of marine nitrogen fixation. The results demonstrate strong spatial variability in the nitrogen to phosphorus ratio of exported organic matter that greatly increases the global nitrogen-fixation rate.
Graeme MacGilchrist (University of Princeton). Reframing the carbon cycle of the subpolar Southern Ocean. Global climate is critically sensitive to physical and biogeochemical dynamics in the subpolar Southern Ocean, since this is where the deepest, most carbon-rich layers of the world ocean outcrop and exchange carbon with the atmosphere. Here, we show that the conventional framework for the subpolar Southern Ocean carbon cycle, which attributes a dominant role to the vertical overturning circulation and shelf-sea processes, fundamentally misrepresents regional carbon... View Article
The RV Investigator returned to Hobart after a 32-day voyage to map a meander of the Antarctic Circumpolar Current (ACC) Polar Front. Onboard were 11 CLEX students and postdocs; three international students; a film maker and visual artist; and collaborators from CSIRO, Antarctic Climate and Ecosystems Cooperative Research Centre, and Woods Hole Oceanographic Institution.
Research has now begun in earnest in the Drought Research Program with all key staff finally in place. This has proved timely. At the time of writing (August 2018) most of NSW has been drought declared and forecasters suggesting little sign of drought-breaking rains over coming months.
New research clearly demonstrates the potential to predict long-term LAI using simple ecohydrological theory. This approach could potentially be incorporated into existing terrestrial biosphere models and help improve predictions of LAI.
The application of a simple carbon balance model, combined with a data assimilation approach, has the potential to improve the process understanding embedded in models, which is used to predict responses of the carbon cycle to climate change.
This PhD project will use climate model simulations to examine how sensitive attribution assessments of high-impact heatwaves to human emissions of carbon dioxide are to the representation of key physical processes.
The Australian Academy of Science with 21 other Commonwealth National Academies of Science and societies as part of a consensus statement calling on the members at the next Commonwealth Heads of Government Meeting (CHOGM) to use the best available science to guide action on climate change. The call comes at a time when research has shown that the commitments of the Paris Accord agreed to by international governments will still put the world on track for temperatures 3°C above preindustrial temperatures.
The reduction in growth of plants restricted by limitations on nutrients, temperature and/or water stress, didn't just reduce photosynthesis but led to negative feedbacks in plant carbon balance processes.