META-WT

The META-WT project was designed to perform a 4-weeks seismic
experiment in Germany with a dense seismic array of ~400
three-component geophones that covered (1) a 2.5km x 2.5km wind
farm area in Brandenburg, Germany, with almost 200 wind turbines (WTs)
and a well-studied subsurface structure and (2) a 20-km long radial
line from the center of the wind farm with one geophone every
half-kilometer. The objective was to capture the spatio-temporal
seismic wave-field signature of the wind farm from continuous
recordings of ambient noise. Due to the dense interstation distance
and proposed geometry the experiment allowed for analyzing both
small-scale wave field characteristics at an unprecedented spatial
resolution and the longer distance radiation pattern of the wind farm.
Waveform data is available from the GEOFON data centre, under network code XF.

META-WT项目旨在德国开展为期4周的地震实验，采用约400台三分量检波器组成的高密度地震台阵，覆盖两大观测区域：(1) 德国勃兰登堡州一处2.5km×2.5km的风电场区域，该区域内建有近200台风力涡轮机（WTs），且地下结构已被充分研究；(2) 以风电场中心为起点的20km长径向测线，每间隔0.5km布设1台检波器。本次实验的核心目标是通过对环境噪声的连续记录，获取风电场的时空地震波场特征。得益于台站间的高密度间距与预设的台阵几何布局，本次实验可同时分析前所未有的高空间分辨率下的小尺度波场特征，以及风电场的远距离辐射模式。波形数据可通过GEOFON数据中心获取，网络代码为XF。