Abstract: An exploration method according to the present disclosure includes: a step (S11) of disposing, in a pipeline (PL) that allows a plurality of manholes (MH) to be interconnected, an electromagnetic wave receiving/transmitting device (1) that transmits an electromagnetic wave and receives a reflected electromagnetic wave that is a reflected wave of the electromagnetic wave; a step (S13) of transmitting the electromagnetic wave; a step (S14) of receiving the reflected electromagnetic wave that is the reflected wave of the electromagnetic wave; and a step (S18) of calculating an intensity distribution of the reflected electromagnetic wave on the basis of an intensity of the reflected electromagnetic wave and a round-trip propagation time from when the electromagnetic wave is transmitted to when the reflected electromagnetic wave is received.

Abstract: A rescue support apparatus includes: a registration unit configured to register biometric information and personal information of a prospective climber to be associated with each other; a reception unit configured to receive an image and positional information of a terminal of an arbitrary finder from the terminal in a case where the arbitrary finder finds a person to be rescued during mountain climbing, the image being obtained by photographing biometric information of the person to be rescued by the terminal of the finder; an authentication control unit configured to control authentication using the registered biometric information for the biometric information contained in the image; and a rescue request unit configured to transmit rescue request information to a rescue system in a case where the authentication is succeeded, the rescue request information containing the personal information associated with the biometric information and the positional information received from the terminal.