Dynamic topography around The North Atlantic - Acquisition and interpretation of seismological data

The seismic data were recorded by the passive seismic array deployed in central and northern Scandinavia in 2012-2017 as part of the international collaboration ScanArray among Danish, English, German, Norwegian and Swedish Universities (Thybo et al., 2012). We will image crustal structure of Scandinavia by a suite of receiver-based techniques, many of which were pioneered by the RSES researchers (e.g. Bodin et al., 2012, Tauzin et al., 2016, Pham and Tkalčić, 2017). Joint inversion of RFs and surface wave dispersion curves has proved critical in addressing the non-uniqueness of the problem and constraining velocities and gradients in properties of the crust and upper mantle (e.g., Tkalčić et al., 2006, 2011, 2012; Fontaine et al., 2015). We will apply a state–of–the–art inversion within a hierarchical and transdimensional Bayesian framework for a robust estimation of the lithospheric velocities and their uncertainties in the Scandinavian region (Kim et al., 2016).