TY - GEN
T1 - Two-dimensional induced polarization effects on airborne time domain electromagnetic data
AU - Lin, C.
AU - Auken, E.
AU - Fiandaca, G. H.
AU - Christiansen, A. V.
N1 - Funding Information:
This study has been jointly supported by State Scholarship Fund of China and National Key Research and Development Program of China (2016YFC0601104).
PY - 2017
Y1 - 2017
N2 - Recently, the interest in induced polarization (IP) phenomenon in airborne time-domain electromagnetic (ATEM) data has been significantly increased. 2D induced polarization greatly affects the ATEM data and masks underlying geological structures. In order to simulate rigorous 2D airborne IP data, a 2.5D modeling algorithm has been developed using the Cole-Cole model and the finite-element method. We verify our algorithm by comparison with the 1D solution of the AarhusInv code. 2D IP effects in the ATEM data are related to the four Cole-Cole parameters, the horizontal length of the 2D target and the distance between the receiver and the target. Compared to the 1D IP responses, the 2D responses are different especially at the stations near the edge of the 2D target. The general shape of the 2D target except for the edge can be recovered by the 1D Laterally Constrained Inversion (LCI) of AarhusInv.
AB - Recently, the interest in induced polarization (IP) phenomenon in airborne time-domain electromagnetic (ATEM) data has been significantly increased. 2D induced polarization greatly affects the ATEM data and masks underlying geological structures. In order to simulate rigorous 2D airborne IP data, a 2.5D modeling algorithm has been developed using the Cole-Cole model and the finite-element method. We verify our algorithm by comparison with the 1D solution of the AarhusInv code. 2D IP effects in the ATEM data are related to the four Cole-Cole parameters, the horizontal length of the 2D target and the distance between the receiver and the target. Compared to the 1D IP responses, the 2D responses are different especially at the stations near the edge of the 2D target. The general shape of the 2D target except for the edge can be recovered by the 1D Laterally Constrained Inversion (LCI) of AarhusInv.
UR - http://www.scopus.com/inward/record.url?scp=85039862668&partnerID=8YFLogxK
U2 - 10.3997/2214-4609.201702152
DO - 10.3997/2214-4609.201702152
M3 - Conference article in proceedings
AN - SCOPUS:85039862668
T3 - 2nd European Airborne Electromagnetics Conference 2017, Held at Near Surface Geoscience Conference and Exhibition 2017
SP - 21
EP - 25
BT - 2nd European Airborne Electromagnetics Conference 2017, Held at Near Surface Geoscience Conference and Exhibition 2017
PB - European Association of Geoscientists and Engineers
T2 - 2nd European Airborne Electromagnetics Conference 2017
Y2 - 3 September 2017 through 7 September 2017
ER -