We present the first-generation global tomographic model constructed based on adjoint
tomography, an iterative full-waveform inversion technique. Synthetic seismograms were …

Seismology provides important constraints on the structure and dynamics of the deep
mantle. Computational and methodological advances in the past two decades improved …

Traditional methods of imaging the Earth's subsurface using seismic waves require an
identifiable, impulsive source of seismic energy, for example an earthquake or explosive …

Recent global travel time tomography studies by Zhou [1996] and van der Hilst et al.[1997]
have been performed with cell parameterizations of the order of those frequently used in …

Earth's lower mantle is dominated by a pair of antipodal large low shear velocity provinces
(LLSVPs) that reach> 1000km up from the core–mantle boundary (CMB). These are …

The critical role of trace gases in global atmospheric change makes an improved
understanding of these gases imperative. Measurements of the distributions of these gases …

Introduction to Petroleum Seismology, second edition, provides the theoretical and practical
foundation for tackling present and future challenges of petroleum seismology, especially …

This paper presents an attempt to recover the space'time structure of fluxes of CO2 to the
atmosphere over the period 1980–1995 from atmospheric concentration and isotopic …

Seismic traveltime tomography is commonly discretized by a truncated expansion of the
pursued model in terms of chosen basis functions. Whether parametrization affects the …

An inverse modeling method is presented to evaluate the sources and sinks of atmospheric
methane. An adjoint version of a global transport model has been used to estimate these …