The Convective Processes Experiment – Aerosols & Winds (CPEX-AW) campaign is a joint effort between the US National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) with the primary goal of conducting a post-launch calibration and validation activities of the Atmospheric Dynamics Mission-Aeolus (ADM-AEOLUS) Earth observation wind Lidar satellite in Sal, Cabo Verde. CPEX-AW is a follow-on to the Convective Processes Experiment (CPEX) field campaign which took place in the summer of 2017 (https://cpex.jpl.nasa.gov/). In addition to joint calibration/validation of ADM-AEOLUS, CPEX-AW will study the dynamics and microphysics related to the Saharan Air Layer, African Easterly Waves and Jets, Tropical Easterly Jet, and deep convection in the InterTropical Convergence Zone (ITCZ). CPEX-AW science goals include:


  • Investigating how convective systems interact with lower tropospheric and surface winds in the ITCZ;
  • Determining the role of aerosols, winds, clouds, and precipitation and their interactions with African weather and air quality
  • Measuring the vertical structures and variability of the boundary layer and linking  to convection initiation and lifecycle in the ITCZ;
  • Studying how the African easterly waves and Sahara Air Layer (dry air and dust) control the convectively suppressed and active periods of the ITCZ.

Location of Sal, Cabo Verde