The irrigation accounts for 70% of global water consumption. Among pressurized techniques, sprinkler irrigation is mostly used. Main drawbacks are wind drift, evaporation or inadequate material design which result in a poor uniformity of the water application and can lead to decrease farming productivity, water losses and negative impacts on soil (erosion, soil leaching and compaction). By the prospect of global warming and population growth, alternative practices such as treated wastewater reuse also raise concerns related to the risk of inhaling pathogens or toxic contaminants during sprinkler irrigation related to aerosolization and transport of fine droplets on long distance. To prevent all these effects, a better knowledge of the mechanism involved in water jet break-up is needed. To tackle these objectives, a simplified study case is constructed where a round dn= 1.2 mm nozzle of a length Ln=50 dn is considered. The injection velocity is chosen to be u=35 m.s-1, aligned with gravity, placing the liquid jet in a turbulent atomization regime. Given the turbulent nature of the liquid jet and the atomization regime, this description is reduced to space/time averaged field quantities from x/dn = 0 to 800 (Figure 1). This study provides an accurate description of the Reynolds-averaged velocity fields from the liquid and gas phases, their correspondent fluctuations and the mass-fraction. Then a full reconstruction of the Favre-averaged velocity field and Favre-averaged Reynolds stresses is obtained. Three subsystems are used to measure the liquid and gas velocity fields and the mean liquid volume fraction. A special configuration of a Laser Doppler Velocimetry system allows obtaining a distinction between the liquid phase (water) and gas phase (air) velocity fields, for both the mean and fluctuating averaged components. Going deeper, a custom Droplet Tracking Velocimetry algorithm can dissects the liquid phase velocity fields by classes of droplet. Finally, the optical probe provides the mean liquid volume fraction. The strong density ratio (water/air), flow's directionality and production of turbulent kinetic energy may be the cause of a weak dispersion and mixing between the two fluids. These mechanisms are not yet clarified from a RSM modeling point-of-view.