Forward modeling of differential travel times of phases sensitive to lowermost mantle beneath
the central Pacific reveals lateral heterogeneity that is higher in amplitude than predicted …

The hypothesis that the deep inner core is anisotropic is based on PKP travel time observations
at large distances and relies on a small number of very anomalous measurements for …

The D″ shell at the base of the Earth's mantle is thought to be a thermal and compositional
boundary layer where vigorous dynamical processes are taking place 1 , 2 , 3 , 4 . An …

We have assembled a collection of PKP data from broadband records of the Geoscope
network. This collection is unique because, for the first time, it includes polar paths at epicentral …

In order to investigate the origin of short spatial scale features in PKP travel time data and to
determine whether a complex inner core anisotropy model is required, we have assembled …

Recent high-profile defaults of investment grade bond issuers have demonstrated the
weakness of conventional ratings in rapidly changing circumstances. We propose a simple …

The splitting of normal modes sensitive to structure in the inner core is larger than can be
explained by three‐dimensional heterogeneity confined to the earth's mantle. A preferred …

Differential PKP(BC)‐PKP(DF) travel time residuals for quasi‐polar paths in the earth present
large excursions from the trends predicted by simple models of inner core anisotropy. We …

Pfandbriefe are bond issues issued by German mortgage banks. Agency ratings do not play
a significant role in the risk profile of jumbo Pfandbriefe, one type of Pfandbriefe, so it might …

We compare local measurements of SH‐velocity in D″ under the Pacific Ocean with four
recent S‐velocity models derived with different techniques. From the local measurements, we …