MT Remote Reference in 500, 1000, and 1500 kilometers
Tuesday, August 25, 2015
Solehudin Solehudin1,2, Irkham Wahyu Setiadi1,2, Arif Darmawan3 and Nefrizal Syamsir Munaf1, (1)PT. Elnusa Tbk, Geoscience, Jakarta, Indonesia, (2)University of Indonesia, Physics/Geothermal, Jakarta, Indonesia, (3)PT. Elnusa. Tbk, Geosciences, Jakarta, Indonesia
Abstract:
The remote reference method involves deploying additional sensors (usually magnetic) at a site removed (remote) from the main (local) measurement site. Whereas the uncontaminated (natural) part of the induced field can be expected to be coherent over spatial scales of many kilometers, noise is generally random and incoherent. Commonly the remote reference distance is about 50-100 km from outer site. But in some area it was difficult to get a quiet area as remote reference. So we need further distance of remote reference from MT site. We applied very far remote reference to Magnetotelluric site that separated approximately 500, 1000, and 1500 km from MT sites to check is the very far distances MT remote still give a good effect in MT data.
