講演情報
[3508]全波形逆解析における新しい初期モデル構築手法の提案
○Ehsan Jamali HONDORI1, 三ケ田均2, 淺川栄一1, 溝畑茂治1 (1.株式会社地球科学総合研究所, 2.京都大学大学院)
司会:羽柴公博(東京大学)
キーワード：
全波形逆解析、地震探査、初期モデル
Full Waveform Inversion (FWI) of seismic data has been applied for a high resolution subsurface imaging. Although this method provides accurate imaging result with higher resolution comparing to the traditional ones, FWI requires either a good initial model or low frequency data for the convergence to the global solution. In this study, we suggest a novel method for extracting the initial model from conventional seismic data processing flows and well log data. Numerical experiments show that our strategy has a potential to avoid cycle skipping problem.