It is also not clear whether the observation in the lab and that derived from GPS are comparable. Lab-based slip measurement often relies on a single site near one edge of the fault. It is implicitly assumed that the measured slip is homogeneous over the entire fault, which has been shown invalid by array- or digital-image-correlation(DI…
It is also not clear whether the observation in the lab and that derived from GPS are comparable. Lab-based slip measurement often relies on a single site near one edge of the fault. It is implicitly assumed that the measured slip is homogeneous over the entire fault, which has been shown invalid by array- or digital-image-correlation(DIC)-based slip measurement. On the other hand, GPS measures the deformation at the Earth's surface, which could sample a large volume of deformation signals at depth (cross-talk effect, convolution effect, etc.).
It is also not clear whether the observation in the lab and that derived from GPS are comparable. Lab-based slip measurement often relies on a single site near one edge of the fault. It is implicitly assumed that the measured slip is homogeneous over the entire fault, which has been shown invalid by array- or digital-image-correlation(DIC)-based slip measurement. On the other hand, GPS measures the deformation at the Earth's surface, which could sample a large volume of deformation signals at depth (cross-talk effect, convolution effect, etc.).