  The presence of stratified layer in atmosphere and ocean leads to buoyant
vertical motions, commonly referred to as plumes. It is important to study the
mixing dynamics of a plume at a local scale in order to model their evolution
and growth. Such a characterization requires measuring the velocity and density
of the mixing fluids simultaneously. Here, we present the results of a buoyant
plume propagating in a linearly stratified medium with a density difference of
0.5%, thus yielding a buoyancy frequency of N=0.15 s^{-1}. To understand the
plume behaviour, statistics such as centerline and axial velocities along
varying downstream locations, turbulent kinetic energy, Reynolds stress, and
buoyancy flux were measured. The centerline velocity was found to decrease with
increase in height. The Reynolds stress and buoyancy flux profiles showed the
presence of a unstable layer and the mixing associated within that layer.
