Abstract
The influence on the sound field of the consecutive IWs was examined. The sound field without IW and with IWs were compared, and the sound field having different intervals of IWs are compared respectively. As a result, the position between the position of sound field without IW and the internal wave fields is important in the sound field formation. Moreover, considering from the states of the phase, the shifting to the low-order mode by the refraction to the upper side and to the high-order mode by the refraction to the lower side became clear.
