Optimization of Broadband Seismic Network in the Kingdom of Saudi Arabia

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Saudi Arabia covers a large portion of the Arabian plate, a region characterized by seismic activity, along complex divergent and convergent plate boundaries. In order to understand these plate boundaries it is essential to optimize the design of the broadband seismic station network to accurately locate earthquakes. In my study, I apply an optimization method to design the broadband station distribution in Saudi Arabia. This method is based on so called D-optimal planning criterion that optimizes the station distribution for locating the hypocenters of earthquakes. Two additional adjustments were implemented: to preferentially acquire direct and refracted wave, and to account for geometric spreading of seismic waves (and thus increases the signal to noise ratio). The method developed in this study for optimizing the geographical location of broadband stations uses the probability of earthquake occurrence and a 1-D velocity model of the region, and minimizes the ellipsoid volume of the earthquake location errors. The algorithm was applied to the current seismic network, operated by the Saudi Geologic Survey (SGS). Based on the results, I am able to make recommendations on, how to expand the existing network. Furthermore, I quantify the efficiency of our method by computing the standard error of epicenter and depth before and after adding the proposed stations.

روابط وملفات

التعريف والنوع

رقم الوثيقة

fc91462b-fa92-480b-9806-d28f8fe98681

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1701037_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"باول مارتين","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"عبدالرحمن السهلي","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

Optimization of Broadband Seismic Network in the Kingdom of Saudi Arabia

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

dc.contributor.advisor Mai, Paul Martin dc.contributor.author Alshuhail, Abdulrahman dc.date.accessioned 2011-07-24T09:00:04Z dc.date.available 2011-07-24T09:00:04Z dc.date.issued 2011-05 dc.identifier.doi 10.25781/KAUST-3I913 dc.identifier.uri http://hdl.handle.net/10754/136692 dc.description.abstract Saudi Arabia covers a large portion of the Arabian plate, a region characterized by seismic activity, along complex divergent and convergent plate boundaries. In order to understand these plate boundaries it is essential to optimize the design of the broadband seismic station network to accurately locate earthquakes. In my study, I apply an optimization method to design the broadband station distribution in Saudi Arabia. This method is based on so called D-optimal planning criterion that optimizes the station distribution for locating the hypocenters of earthquakes. Two additional adjustments were implemented: to preferentially acquire direct and refracted wave, and to account for geometric spreading of seismic waves (and thus increases the signal to noise ratio). The method developed in this study for optimizing the geographical location of broadband stations uses the probability of earthquake occurrence and a 1-D velocity model of the region, and minimizes the ellipsoid volume of the earthquake location errors. The algorithm was applied to the current seismic network, operated by the Saudi Geologic Survey (SGS). Based on the results, I am able to make recommendations on, how to expand the existing network. Furthermore, I quantify the efficiency of our method by computing the standard error of epicenter and depth before and after adding the proposed stations. dc.language.iso en

إشراف وإعداد

الإشراف

باول مارتين

الإعداد

عبدالرحمن السهلي

الاقتباسات الببليوغرافية