Larose E, Margerin L, Van Tiggelen B A, Campillo M
Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier and CNRS, BP 53, 38041 Grenoble, France.
Phys Rev Lett. 2004 Jul 23;93(4):048501. doi: 10.1103/PhysRevLett.93.048501.
We report the observation of weak localization of seismic waves in a natural environment. It emerges as a doubling of the seismic energy around the source within a spot of the width of a wavelength, which is several tens of meters in our case. The characteristic time for its onset is the scattering mean-free time that quantifies the internal heterogeneity.
我们报告了在自然环境中观测到地震波的弱局域化现象。它表现为在一个波长宽度的区域内，震源周围的地震能量加倍，在我们的案例中这个区域宽度为几十米。其出现的特征时间是散射平均自由时间，它量化了内部的不均匀性。
