MENGUNGKAP KEMBALI EKSISTENSI BENTENG INDRAPATRA DENGAN METODE GROUND PENETRATING RADAR (GPR)

Abstract

The research related to the reconstruction of the existence of the ancient Indrapatra Fortress using the Ground Penetrating Radar (GPR) method in study area of ​​the fortress ruins in Ladong Village, Aceh Besar District, Aceh. This research is based on the interest of researchers to study the response of electromagnetic waves to sub-surface of the fort that had been lost. By signals response, it can be identified the existence of a fortress that has been lost based on the part of fort that is still intact. The use of the GPR method is because this method works based on the principle of electromagnetic and wave propagation non-destructive. The results shows that electromagnetic signals that describes the location of subsurface vertical profiles ruins. Data processing by using GRESWIN software to obtain subsurface imagery from the study area. The result depicts the location of fort foundation based on the susceptibility variability value of rocks that make up the fortress against the surrounding environment. Its testify that the GPR is a significant method to reveal the existence of the loss fort.