Detecting Possible Rotation of Earth's Inner Core
Abstract
In her 3 July Perspective, “Earth's inner core: Is the rotation real?,” A. Souriau ([1][1]) notes that several different estimates of the inner core rotation rate have been published since the appearance of the original results of Song and Richards ([2][2]). She discusses problems with the
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Seismological observations confirmed differential rotation of the inner core relative to the mantle, with varying rotation rates in the eastward (prograde) direction, settling to the range from 0.3 to 1.1 years per degree faster than the mantle.
“These observations confirmed the theoretical predictions of differential rotation of the inner core relative to the mantle, with varying rotation rates in the eastward (prograde) direction, settling to the range from 0.3 to 1.1 years per degree faster than the mantle.”
From On the Inner‐Core Differential‐Rotation (Un)Resolvability From Earthquake Doublets: The Traps of Data Selection (2024) · cites this paper as Richards et al., 1998
Cites
Seismological evidence for differential rotation of the Earth's inner core
Song, X., & Richards, P. G. (1996) · Nature · doi:10.1038/382221a0 · Cited by 445 · see citing works
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Tkalčić, H. (2024) · Geophysical Research Letters · doi:10.1029/2023gl107043 · Cited by 4 · see citing works
“These theoretical predictions were validated by observing systematic changes over time in the travel times of inner‐core‐sensitive PKIKP waves (e.g., Creager, 1997; Richards et al., 1998; Song & Richards, 1996).”
Background
- Authors
- Richards, P. G., Song, X., & Li, A.
- Affiliations
- Lamont-Doherty Earth Observatory (US)
- Venue
- Science
- Published
- 1998-11-13
- Volume
- 282
- Issue
- 5392
- Pages
- 1227-1227
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2083367853
- Cited by
- 18
- References
- 1
- Citations by year
- 2024: 1 · 2023: 1 · 2019: 1 · 2017: 1 · 2015: 1
- FWCI
- 1.04
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geophysics › High-pressure geophysics and materials
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Geomagnetism and Paleomagnetism Studies
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Seismic Waves and Analysis
- Keywords
- Earth's inner core, inner core rotation, inner core dynamics
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