“…However, the ambient noise may also treated as a useful sound in that it contains valuable information about the environment itself due to its strong interaction with the supporting media and the boundaries, in turn allowing inference of the envionmental characteristics through the inverse processing-a problem referring to as ambient noise inversion which is of current interest in the underwater acoustics community (e.g. Buckingham, 2004;Harrison and Simons, 2002;Carbone et al, 1998). In such applications, it is important to first understand how each of the environmental factors affects the ambient noise field.…”