State determination device, state determination method, and recording medium having state determination program stored thereon

A state determination method, the method causing an information processing device to execute:

• acquiring a state measurement value indicating a state of an area near an earth surface by analyzing observation information near the earth surface by a satellite-borne synthetic aperture radar;
• determining whether a relationship between the state measurement value and a value of an index in which a predetermined regularity may exist between the index and the state or a relationship between the state measurement value and a state estimation value near the earth surface estimated from the value of the index satisfies the predetermined regularity;
• and
• outputting determination result information indicating that the state is abnormal when the relationship between the value of the index and the state measurement value or the relationship between the state estimation value and the state measurement value does not satisfy the predetermined regularity.

A non-transitory computer-readable recording medium storing a state determination program for causing a computer to execute:

• an acquisition process of acquiring a state measurement value indicating a state of an area near an earth surface by analyzing observation information near the earth surface by a satellite-borne synthetic aperture radar;
• a determination process of determining whether a relationship between the state measurement value and a value of an index in which a predetermined regularity may exist between the index and the state or a relationship between the state measurement value and a state estimation value near the earth surface estimated from the value of the index satisfies the predetermined regularity;
• and
• an output process of outputting determination result information indicating that the state is abnormal when the relationship between the value of the index and the state measurement value or the relationship between the state estimation value and the state measurement value does not satisfy the predetermined regularity.