|
| | Abstract | | In conventional marine controlled source (CSEM) methods, we need to connect a survey vehicle, an electromagnetic (EM) transmitter and towed receivers using a long cable. It restricts the towed altitude of transmitter and receivers, and result in the difficulty to get information about shallow sub-seafloor structure. In this research, we propose a new marine CSEM method to solve this problem using two autonomous underwater vehicles (AUV). Using this method, it is possible to keep a low height of diving AUVs from the seafloor, so we can carry out the exploration of submarine massive sulphide deposits (SMS) effectively. We discussed the feasibility of our new CSEM method employing the 2.5-D FEM forward program for solving EM propagation near the seafloor. From numerical results, it is possible to detect the rough horizontal extent and thickness of SMS. |
|
|
|
| |
|