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Based on intrinsic and scattering quality factor (Q_i^(−1) and Q_s^(−1)) obtained from the seismic data of the southeastern Korean Peninsula, the expected coda quality factor (Q_(Cexp)^(−1)) was theoretically calculated using multiple scattering model, and was compared with other quality factors such as Q_i^(−1), Q_s^(−1), and observed Q_C^(−1) obtained by single scattering model. While the Q_(Cexp)^(−1) values are typically comparable to the Q_i^(−1) values, the Q_C^(−1) values are different from the Q_(Cexp)^(−1) values except for the higher frequency. Future works require to consider depth-dependent attenuation.
한반도 남동부지역 지진자료의 고유감쇠(Q_i^(−1))와 산란감쇠(Q_s^(−1))값을 바탕으로 다중산란모델에 의한 이론코다감쇠값(Q_(Cexp)^(−1))을 구하고 단일산란 모델의 관측 코다감쇠값(Q_C^(−1)) 및 고유 및 산란 감쇠상수 값(Q_i^(−1), Q_s^(−1))과 비교하였다. 그결과, Q_(Cexp)^(−1) 값은 Q_i^(−1)값에 근접한 전형적인 모습이나, Q_C^(−1)값이 고주파수 대역을 제외한 대부분의 구간에서 Q_(Cexp)^(−1) 값과상이한 것으로 나타났다. 향후 이러한 연구는 깊이에 따라 변화하는 감쇠값을 고려하여 진행되어야 할 것이다.
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- Publisher :Korean Society of Earth and Exploration Geophysicists
- Publisher(Ko) :한국지구물리물리탐사학회
- Journal Title :Geophysics and Geophysical Exploration
- Journal Title(Ko) :지구물리와 물리탐사
- Volume : 14
- No :3
- Pages :249~253
Geophysics and Geophysical Exploration
