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• W2037133301 endingPage "21877" @default.
• W2037133301 startingPage "21857" @default.
• W2037133301 abstract "The seismic models of three‐dimensional (3‐D) mantle heterogeneity may be interpreted in terms of the density perturbations which drive mantle flow and thus provide important predictions of flow‐related observables, such as the nonhydrostatic geoid. The current models of global‐scale shear velocity heterogeneity provide reasonably good fits to the long‐wavelength nonhydrostatic geoid data (60–70% variance reductions) but rather poor fits to the corresponding free‐air gravity anomalies (30–40% variance reductions). This major difference is due to two factors: (1) the very different amplitude spectrum of the gravity anomalies, which is nearly flat for degrees ℓ < 8, and (2) the relatively poor match between the individual harmonic components of the predicted and observed gravity anomalies for degrees ℓ > 3. The largest mismatch between the pattern of predicted and observed gravity anomalies is in the southern hemisphere. This observation suggests that one reason for the poor overall match between the two fields may be that the global seismic data are not resolving sufficiently well the heterogeneity in the southern hemisphere portion of the deep mantle. In contrast, the gravity data provide accurate and geographically uniform constraints on the vertically integrated heterogeneity in the mantle. We therefore perform a series of experiments in which we simultaneously invert a large set of seismic data (which includes long‐period waveforms, SS ‐ S and ScS ‐ S differential travel times, and normal‐mode structure coefficients) and the long‐wavelength gravity anomaly data. We thus determine whether it is possible to derive new 3‐D heterogeneity models which satisfy both data sets. The gravity anomaly data are interpreted in the context of spherically‐symmetric viscous flow models of the mantle. In these inversion experiments we test several radial viscosity and δlnρ/δlnν profiles and thereby assess their plausibility. The joint seismic‐geodynamic inversions reveal that it is indeed possible to greatly improve the fit to the free‐air gravity anomalies (with variance reductions of 80–90% readily accessible) while preserving the fit to the seismic data. This improvement is achieved with some adjustment to the heterogeneity in the depth range 1500–2500 km, where the seismic data constraints appear to be weakest. The joint inversions also reveal new structures in the southern hemisphere portion of the lower mantle which apparently are not resolved by the seismic data alone." @default.
• W2037133301 created "2016-06-24" @default.
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• W2037133301 date "1994-11-10" @default.
• W2037133301 modified "2023-10-13" @default.
• W2037133301 title "Joint inversions of seismic and geodynamic data for models of three—dimensional mantle heterogeneity" @default.
• W2037133301 cites W1576903768 @default.
• W2037133301 cites W1578394212 @default.
• W2037133301 cites W1605591276 @default.
• W2037133301 cites W1964314630 @default.
• W2037133301 cites W1967598321 @default.
• W2037133301 cites W1969429051 @default.
• W2037133301 cites W1969927783 @default.
• W2037133301 cites W1970407154 @default.
• W2037133301 cites W1971817744 @default.
• W2037133301 cites W1973262253 @default.
• W2037133301 cites W1973866145 @default.
• W2037133301 cites W1974751453 @default.
• W2037133301 cites W1975324737 @default.
• W2037133301 cites W1976957866 @default.
• W2037133301 cites W1977068409 @default.
• W2037133301 cites W1982304204 @default.
• W2037133301 cites W1982400079 @default.
• W2037133301 cites W1983315216 @default.
• W2037133301 cites W1986061020 @default.
• W2037133301 cites W1987600534 @default.
• W2037133301 cites W1991431833 @default.
• W2037133301 cites W1991645292 @default.
• W2037133301 cites W2007377958 @default.
• W2037133301 cites W2008526841 @default.
• W2037133301 cites W2010570711 @default.
• W2037133301 cites W2012964935 @default.
• W2037133301 cites W2017170960 @default.
• W2037133301 cites W2019318391 @default.
• W2037133301 cites W2031301776 @default.
• W2037133301 cites W2032434365 @default.
• W2037133301 cites W2032813902 @default.
• W2037133301 cites W2035096112 @default.
• W2037133301 cites W2042402646 @default.
• W2037133301 cites W2043530896 @default.
• W2037133301 cites W2051189536 @default.
• W2037133301 cites W2052731694 @default.
• W2037133301 cites W2054664315 @default.
• W2037133301 cites W2056827213 @default.
• W2037133301 cites W2056884602 @default.
• W2037133301 cites W2057307775 @default.
• W2037133301 cites W2057534979 @default.
• W2037133301 cites W2060373359 @default.
• W2037133301 cites W2060598449 @default.
• W2037133301 cites W2061360284 @default.
• W2037133301 cites W2063287321 @default.
• W2037133301 cites W2066355171 @default.
• W2037133301 cites W2071118545 @default.
• W2037133301 cites W2072247666 @default.
• W2037133301 cites W2074618243 @default.
• W2037133301 cites W2076223423 @default.
• W2037133301 cites W2080851938 @default.
• W2037133301 cites W2082864896 @default.
• W2037133301 cites W2086712448 @default.
• W2037133301 cites W2093055644 @default.
• W2037133301 cites W2104619453 @default.
• W2037133301 cites W2113925928 @default.
• W2037133301 cites W2121019857 @default.
• W2037133301 cites W2122668821 @default.
• W2037133301 cites W2130866811 @default.
• W2037133301 cites W2156223712 @default.
• W2037133301 cites W2157664749 @default.
• W2037133301 cites W2165084226 @default.
• W2037133301 cites W2168764039 @default.
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• W2037133301 doi "https://doi.org/10.1029/94jb01467" @default.
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