Geoffrey Bessardon

Geoffrey Bessardon

Profile

2011-2013:Master Degree in Environmental Fluid Mechanics , Joseph Fourier University, Grenoble, France

2008 -2011:Bachelor in Mechanical Engineering, Joseph Fourier University, Grenoble, France

The summer-time boundary layer in the West African Monsoon: mixing process and the transport of pollutants

SOEE2210 Atmosphere and Ocean Dynamics

Dynamics-aerosol-chemistry-cloud interactions in West Africa (DACCIWA) project ist funded by the European Union 7th Framework Programm to investigate the influence of anthropogenic and natural emissions on the atmospheric composition over South West Africa and to assess their impact on human and ecosystem health and agricultural productivity.

Massive economic and population growth and urbanisation are expected to lead to a tripling of anthropogenic emissions in southern West Africa (SWA) between 2000 and 2030, the impacts of which on human health, ecosystems, food security and the regional climate are largely unknown.

An assessment of these impacts is complicated by:

  1. a superposition with effects of global climate change,
  2. the strong dependence of SWA on the sensitive West African monsoon,
  3. incomplete scientific understanding of interactions between emissions, clouds, radiation, precipitation and regional circulations
  4. by a lack of observations to advance our understanding and improve predictions.

DACCIWA will quantify the influence of anthropogenic and natural emissions on the atmospheric composition over South West Africa and assess their impact on human and ecosystem health and agricultural productivity. It will quantify the coupling between aerosols and clouds and identify controls on the formation and persistence of low-level clouds. Further it will identify meteorological controls on precipitation, focusing the transition from stratus to convective clouds and the forcing from weather systems. DACCIWA will quantify the two way cloud and aerosol impacts on the radiation and energy budgets from the cloud scale to the scale of the West African monsoon circulation. State-of- the-art meteorological, chemistry and air-quality models, satellite retrievals of clouds, precipitation, aerosols and radiation will be assessed in close collaboration with operational centres and research findings will be communicated to policy-makers, scientists, operational centres, students, and general public using a graded communication strategy.

Qualifications

  • 2008 -2011:Bachelor in Mechanical Engineering, Joseph Fourier University, Grenoble, France
  • 2011-2013:Master Degree in Environmental Fluid Mechanics , Joseph Fourier University, Grenoble, Fran

Research groups and institutes

  • Institute for Climate and Atmospheric Science