Tropical Rainforest-Atmosphere iNteractionS: Achieving a Coupled CLoud-Aerosol Interactions Model (TRANS-ACCLAIM)

Project leader

Funding source

EU Seventh Framework Programme - Marie Curie

Project Details

Start date: 01/03/2013
End date: 01/03/2015
Funding: 206350 EUR


The main goal of this project is to characterize the amount of atmospheric aerosol particles formed, transported anddeposited within deep convective clouds over the Amazon. In addition, we will quantify the impact of perturbations to thenatural aerosol population on deep convective cloud properties. The European Union has in its 7th research frameworkprogram (FP7) recognized the need for increasing our knowledge of the interactions between the climate, biosphere,ecosystems and human activities. Aerosol-cloud interaction has also been identified by the Intergovernmental Panel onClimate Change (IPCC) as a key uncertainty in our current understanding of the climate system. Aerosol composition inthe tropical environment is dominated by carbonaceous compounds. The sources of these compounds vary throughoutthe year, from oxidative processing of biogenic volatile organic gases during the clean, wet season to direct injection ofbiomass burning aerosols and organic gases in the polluted, dry season. By combining the experienced researcher's in-depthknowledge of organic aerosol modeling with the aerosol and cloud expertise available in the host environment, we willdevelop the first cloud-resolving model to explicitly account for in-cloud organic aerosol formation, growth, and removal.The model will be able to simulate in detail the dynamical and microphysical evolution of a deep convective cloud, aswell as the two-way interaction between the cloud and the atmospheric aerosol population. Using the new tool, togetherwith upcoming and available in-situ measurements from different aircraft campaigns over the Amazon, we will increasethe knowledge regarding the issues pointed out by FP7 and IPCC. We will also improve the description of aerosol-cloudinteraction processes in large-scale air pollution and climate models.

Last updated on 2018-18-12 at 15:35