• Corpus ID: 248834277

A Re-examination of Ellipticity Corrections for Seismic Phases

  title={A Re-examination of Ellipticity Corrections for Seismic Phases},
  author={Stuart J. Russell and John Frederick Rudge and Jessica C. E. Irving and Sanne Cottaar},
Summary The Earth’s ellipticity of figure has an effect on the travel times of seismic waves over teleseismic distances. Tables of ellipticity corrections and coefficients have been used by seismologists for several decades, however due to the increasing variety and complexity of seismic phases in use, current tables of ellipticity coefficients are now obsolete and incomplete. We present a Python package, EllipticiPy, for the calculation of ellipticity corrections that removes the dependence on pre… 

Figures and Tables from this paper


SUMMARY The advent of broad-band seismology has meant that use is being made of a wide range of seismic phases, for many of which ellipticity corrections have not been readily available. In
The Effect of Small, Aspherical Perturbations on Travel Times and a Re-examination of the Corrections for Ellipticity
Summary We use the stationarity of the Fermat ray path to develop theoretical expressions that relate small, aspherical perturbations in velocity to small perturbations in travel times. For the
The ellipticities of surfaces of equal density inside the earth
Constraints on seismic velocities in the Earth from traveltimes
SUMMARY New empirical traveltime curves for the major seismic phases have been derived from the catalogues of the International Seismological Centre by relocating events by using P readings, depth
Bayesian inversion of the Martian structure using geodynamic constraints
The ongoing InSight mission has recently deployed very broad band seismometers to record the Martian seismic activity. These recordings constitute the first seismic data set collected at the
The TauP Toolkit: Flexible Seismic Travel-Time and Raypath Utilities
The method of Buland and Chapman (1983) provides significant progress toward this need by allowing for the computation of times and paths of any rays passing through arbitrary spherically symmetric velocity models.
Preliminary reference earth model
Lunar Seismology: An Update on Interior Structure Models
An international team of researchers gathered, with the support of the Interna- tional Space Science Institute (ISSI), (1) to review seismological investigations of the lunar interior from the
The Marsquake catalogue from InSight, sols 0–478
An Introduction to the Theory of Seismology
IN view of the number of different lines of approach, a borderline subject is apt to amass a vast literature, some of it difficult of access to investigators. This is particularly true of seismology