Method and system of geophysical surveys in marine environments

A system comprising:

• a sensor cable comprising:
• an outer jacket, the outer jacket defining an interior volume;
• and
• a first electrical conductor disposed within the interior volume;
• a first sensor module comprising:
• a coupling member configured to be releasably coupled to the outer jacket of the sensor cable;
• a sensor coupled to the coupling member;
• and
• a control circuit communicatively coupled to the sensor, the control circuit configured to be electrically isolated from the first electrical conductor, and the control circuit configured to be communicatively coupled to the first electrical conductor when the coupling member is coupled to the outer jacket.

A sensor module comprising:

• a base portion configured to be releasably coupled to an outer jacket of a sensor cable, the base portion defining an interior volume;
• a sensor disposed within the interior volume;
• a passage defined, at least in part, by the base portion, the passage defining an inside diameter configured to mate with an outside diameter of the outer jacket;
• and
• a control circuit communicatively coupled to the sensor, the control circuit configured to be electrically isolated from electrical conductors of the sensor cable, and the control circuit configured to be communicatively coupled to at least one electrical conductor within the sensor cable when the base portion is coupled to the outer jacket.