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The present paper reports on high-speed tomographic particle image velocimetry measurements of large-scale coherent structures in the near field of swirling turbulent jets. Three flow cases are considered: a jet without superimposed swirl; a jet with low swirl; and a high-swirl jet with bubble-type vortex breakdown and a central recirculation zone. Local pressure fluctuations and their correlations with velocity were evaluated based on the Poisson equation and an effective viscosity model. Spatial Fourier transform and proper orthogonal decomposition were applied to evaluate the energies of different azimuthal modes for different cross-sections of the jet and to extract coherent structures. Toroidal vortices were observed in the mixing layer of the non-swirling and low-swirl jets. In the latter case, the vortices broke up earlier due to the swirl effect and formed longitudinal vortex filaments in the outer mixing layer of the jet …