抄録
A new technique of lightning location utilizing data of arrival time difference and direction of electromagnetic waves from 2 stations or 3 stations is evaluated. Combination of available modes in this time-difference and direction (TDD) technique can achieve accurate lightning location in a wider coverage area than that of the time-of-arrival technique. Simulation shows that TDD technique is capable of retrieving the site error curve in the magnetic direction finding considerably accurately. Systematic timing error associated with propagation effect deteriorates the accuracy of the TOA lightning location, especially in the exterior base line area. The existence of this phenomenon is confirmed by analyzing real lightning data.
