With the increase of human activities in coastal areas, many different type of sources of noise are now present in the ocean. Among these sources, one can cite sonars, seismic exploration, underwater industrial processing, civil engineering projects, commercial and recreational transportation to cite a few. Recently, a new type of source of noise associated to deep sea mining has appeared. All these sources may contribute to the increase of noise level and have to be addressed. As a consequence, the accurate numerical simulation of acoustic wave propagation in the ocean is very important in order to be able to predict the distribution of noise level generated by all the types of sources. It will allow the generation of accurate acoustic maps which will help to assess the impact of these sources on marine life. Many acoustic propagation models are available. Under some assumptions, they all are able to propagate the sound field over long distances. Nevertheless, the underlying hypothesis behind these models often leads to some lack of accuracy. This is the price to pay to be able to propagate over long distances with a reasonable computational cost. On the other hand, accurate numerical modeling requires a computational burden which can be heavy and not always realistic.