کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4548954 1327936 2009 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A joint seismo-geoacoustic inversion in shallow water using a subsurface towed sound source
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
A joint seismo-geoacoustic inversion in shallow water using a subsurface towed sound source
چکیده انگلیسی
A single-hydrophone geoacoustic inversion procedure using a calibrated source is proposed and tested with experimental shallow water data. In a first step the number of sediment layers, their thicknesses and velocities are estimated using a conventional seismic approach. In a second step, the amplitude variations of each reflected arrival are used to estimate the reflection coefficients versus the incidence angle. The results are compared to numerical model solutions. With this second step, velocity estimations are refined in order to predict the observed critical angles. Attenuation and density are estimated from the absolute level of the reflection coefficient. Finally, experimental and synthetic data generated after inversion are compared.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Marine Systems - Volume 78, Supplement, November 2009, Pages S321-S332
نویسندگان
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