Summary We present a new Moho depth model of the British Isles and surrounding areas from the most up-to-date compilation of Moho depth estimates obtained from refraction, reflection and receiver function data. We use a probabilistic, trans-dimensional and hierarchical approach for the surface reconstruction of Moho topography. This fully data-driven approach allows for adaptive parametrization, assessment of relative importance between different data-types and uncertainties quantification on the reconstructed surface. Our results confirm the first order features of the Moho topography obtained in previous work such as deeper Moho (29-36 km) in continental areas (e.g. Ireland and Great Britain) and shallower Moho (12-22 km) offshore (e.g in the Atlantic Ocean, west of Ireland). Resolution is improved by including recent available data, especially around the Porcupine Basin, onshore Ireland and Great Britain. NE trending features in Moho topography are highlighted above the Rockall High (about 28 km) and the Rockall Trough (with a NE directed deepening from 12 to about 20 km). A perpendicular SE oriented feature (Moho depth 26-28 km) is located between the Orkney and the Shetland, extending further SW in the North Sea. Onshore, our results highlight the crustal thinning toward the N in Ireland and an E-W oriented transition between deep (34 km) and shallow (about 28 km) Moho in Scotland. Our probabilistic results are compared with previous models showing overall differences around ±2 km, within the posterior uncertainties calculated with our approach. Bigger differences are located where different data are used between models or in less constrained areas where posterior uncertainties are high.

中文翻译：

---

不列颠群岛的莫霍面深度：概率视角

总结 我们根据折射、反射和接收器函数数据获得的最新莫霍面深度估计汇编，提出了不列颠群岛及周边地区的新莫霍面深度模型。我们使用概率的、跨维的和分层的方法进行莫霍面地形的表面重建。这种完全数据驱动的方法允许自适应参数化、不同数据类型之间的相对重要性评估和重建表面上的不确定性量化。我们的结果证实了先前工作中获得的莫霍面地形的一阶特征，例如大陆地区（例如爱尔兰和英国）的更深的莫霍面（29-36 公里）和离岸（例如大西洋）的更浅的莫霍面（12-22 公里）海洋，爱尔兰西部）。通过包括最近的可用数据提高了分辨率，特别是在豪猪盆地周围、爱尔兰陆上和英国。Moho 地形中的 NE 趋势特征在 Rockall High（约 28 公里）和 Rockall 海槽（NE 定向加深从 12 到约 20 公里）上方突出显示。一个垂直的东南方向特征（莫霍面深度 26-28 公里）位于奥克尼和设得兰群岛之间，在北海进一步向西南延伸。在陆上，我们的结果突出了爱尔兰向 N 的地壳变薄以及苏格兰深部（34 公里）和浅部（约 28 公里）莫霍面之间的 EW 向过渡。我们的概率结果与之前的模型进行了比较，显示在使用我们的方法计算的后验不确定性范围内，总体差异约为 ±2 公里。