Strain rotation coupling and its implications on the measurement of rotational ground motions
Strain rotation coupling and its implications on the measurement of rotational ground motions
复制标题
应变旋转耦合及其对旋转地面运动测量的影响
DOI:
10.1007/s10950-012-9296-5
复制
发表时间:
2012
影响因子:
1.6
通讯作者:
H. Igel
中科院分区:
文献类型:
--
作者:
van Driel;J. Wassermann;M. F. Nader;B. S. A. Schuberth;H. Igel
Spatial derivatives of the seismic wave field are known to be sensitive to various site effects (e.g., cavity effects, topography, and geological inhomogeneities). In this study, the focus is on strain rotation coupling that can cause significant differences between point measurements compared to array-derived rotational motions. The strain rotation coupling constants are estimated based on finite element simulations for inhomogeneous media as well as for the 3D topography around Wettzell, Germany (the location of the G ring laser). Using collocated array and ring laser data, the coupling constants of the ring laser itself are shown to be small. Several examples are shown to illustrate the order of magnitude that strain-induced rotation might have on the seismograms in the near field of volcanoes as well as in the far field and in the low-frequency spectrum (free oscillations).
登录
查看更多内容
影响因子:
--
作者:
M. Kohl;J. Levine
通讯作者:
J. Levine
影响因子:
3
作者:
R. Dunn;Hanan Mahdi;H. Al
通讯作者:
H. Al
影响因子:
3
作者:
Yuefan Deng
通讯作者:
Yuefan Deng
影响因子:
1
作者:
E. Wielandt;T. Forbriger
通讯作者:
T. Forbriger
影响因子:
1.6
作者:
Bernauer, Felix;Wassermann, Joachim;Igel, Heiner
通讯作者:
Igel, Heiner