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Crosscorrelation of Earthquake Data Using Stationary Phase Evaluation : Insight into Reflection Structures of Oceanic Crust Surface in the Nankai Trough
المؤلفون المشاركون
Minato, Shohei
Obana, Koichiro
Matsuoka, Toshifumi
Tsuji, Takeshi
المصدر
International Journal of Geophysics
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-06-12
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
Seismic interferometry (SI) has been recently employed to retrieve the reflection response from natural earthquakes.
We perform experimental study to apply SI to Ocean Bottom Seismogram (OBS) records in the Nankai Trough, southwest Japan in order to reveal the relatively shallow geological boundaries including surface of oceanic crust.
Although the local earthquakes with short raypath we use to retrieve reflection response are expected to contain the higher-frequency components to detect fine-scale structures by SI, they cannot be assumed as plane waves and are inhomogeneously distributed.
Since the condition of inhomogeneous source distribution violates the assumption of SI, the conventional processing yields to the deteriorated subsurface images.
Here we adopt the raypath calculation for stationary phase evaluation of SI in order to overcome this problem.
To find stationary phase, we estimate the raypaths of two reflections: (1) sea-surface P-wave reflection and (2) sea-surface multiple P-wave reflection.
From the estimated raypath, we choose the crosscorrelation traces which are expected to produce objective reflections considering the stationary phase points.
We use the numerical-modeling data and field data with 6 localized earthquakes and show that choosing the crosscorrelation traces by stationary phase evaluation improves the quality of the reflections of the oceanic crust surface.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Minato, Shohei& Tsuji, Takeshi& Matsuoka, Toshifumi& Obana, Koichiro. 2012. Crosscorrelation of Earthquake Data Using Stationary Phase Evaluation : Insight into Reflection Structures of Oceanic Crust Surface in the Nankai Trough. International Journal of Geophysics،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-446384
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Minato, Shohei…[et al.]. Crosscorrelation of Earthquake Data Using Stationary Phase Evaluation : Insight into Reflection Structures of Oceanic Crust Surface in the Nankai Trough. International Journal of Geophysics No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-446384
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Minato, Shohei& Tsuji, Takeshi& Matsuoka, Toshifumi& Obana, Koichiro. Crosscorrelation of Earthquake Data Using Stationary Phase Evaluation : Insight into Reflection Structures of Oceanic Crust Surface in the Nankai Trough. International Journal of Geophysics. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-446384
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-446384
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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