Abstract. Boundary layer and turbulent characteristics (surface fluxes, kinetic energy – TKE, dissipation rate ϵ), along with synoptic-scale changes in these properties over time, are examined using data collected from 18 research flights made the CIRPAS Twin Otter Aircraft. Data were during Variability of American Monsoon Systems (VAMOS) Ocean–Cloud–Atmosphere–Land Study Regional Experiment (V...