Example of the Gaussian decomposition obtained by ROHSA (colored line) for a random 4 × 4 mosaic of NEP. The original signal is show by the blue histogram and the total brightness temperature encoded by ROHSA isshown in black. The other lines detail the components of the Gaussian model. The spatial coherence of the solution canbe seen over the mosaic with a smooth variation of the amplitude, central velocity, and velocity dispersion of each Gaussian component.