Seismological array experiment in the deep ocean west of Portugal to test the theoretical improvements in deep structure imaging and phase identification

我们计划在葡萄牙以西的深海进行地震台阵实验，以测试在实践中深部结构成像和相位识别方面的改进，与单一的三分量台站或稀疏网络相比，使用地震台阵应该可以获得这些改进。因此，一个由12个站组成的OBS阵列(DePas Pool)应部署在大约39°N，17°W的位置。有关北大洋板块东部深层岩石圈结构的新见解将成为可能。地震台阵能够使用叠加和频率-波数滤波技术来提高信噪比，并除传播时间、幅度和偏振信息外，还能分辨入射子波的慢度和方位。海底中孔阵列(约50公里口径)将位于格洛里亚断层(主阵)以北的深海中。海底阵列将由两个中口径陆地阵列补充，每个中口径陆地阵列由12个站组成。第一个陆地阵列将位于葡萄牙海底阵列以东，第二个陆地阵列计划在马德拉岛。

We plan to conduct a seismological array experiment in the deep ocean west of Portugal to test the improvements in deep structure imaging and phase identification in practice which should be gained by using seismological arrays compared to single 3-component stations or sparse networks. Therefore one OBS array consisting of 12 stations (DEPAS Pool) shall be deployed at about 39° N, 17 ° W . New insights regarding the deep lithosphere structure of the eastern part of the northatlantic oceanic plate will be possible. Seismological arrays enable the use of stacking and frequency-wavenumber filter techniques to enhance the signal to noise ratio and to resolve slowness and azimuth of incoming wavelets additional to traveltime, amplitude and polarization information. The ocean bottom midaperture array (about 50 km aperture) will be situated in the deep ocean north of the Gloria fault (main array). The ocean bottom array will be complemented by two mid-aperture landarrays consisting of 12 stations each. The first landarray will be located in Portugal to the East of the ocean bottom array, the second is planned on the island of Madeira.