Martin De Kauwe - Using CO2 manipulation experiments to improve models

Event type: 
Seminar
Date: 
25 October 2017
Time: 
2.00 - 3.00pm
Location: 

Climate Change Research Centre, Seminar Room, Mathews Building 4th floor, UNSW, Sydney

Presenter: 
Martin De Kauwe
ARC Centre of Excellence for Climate Extremes, CCRC, UNSW
Host: 
Climate Change Research Centre, UNSW, Australia

The response of terrestrial ecosystems to rising atmospheric CO2, particularly under nutrient-limited conditions, is a major uncertainty in Earth System models. Data from ecosystem-scale Free-Air CO2 Enrichment (FACE) experiments provide a unique opportunity to reduce this uncertainty. The recent FACE Model–Data Synthesis project aimed to use the information gathered from a number of forest and grassland FACE experiments to assess and improve land ecosystem models. In this talk I will explain how we used an 'assumption-centred' approach to identify and evaluate the main assumptions causing differences among models. I will also highlight existing challenges and outline future research directions.

 

Speaker Biography: Martin's research is about understanding how plants respond to increasing CO2, temperature and changing water availability. He is interested in how the response of the vegetation to global change, may moderate or intensify, the rate of climate change. He is particularly interested in ways to utilise experimental and satellite data to develop evidence-based models with a predictive capacity. Martin is a member of the management committee for the Community Atmosphere Biosphere Land Exchange (CABLE) model, Australia's community land surface model.