Research Areas
- Seismology, Geophysics
CV
Education
- PhD (Univ. Göttingen)
- Undergraduate studies (Univ. Marburg (Pre-Diploma), Univ. Erlangen-Nürnberg (Diploma))
Positions
- Professor
- Lecturer/Senior Lecturer (Univ. Liverpool)
- Postdoc (Univ. Leeds)
- visiting scientist, Univ. Cambridge and British Antarctic survey, UK
Projects
- ErUM-Wave – Verbundprojekt 05D2022 - ErUM-Wave: Antizipation 3-dimensionaler Wellenfelder, Teilprojekt 1 ( – )
Participation in BMBF-joint project: Federal Ministry of Education and Research | Project Number: 05D23PM1 - Deep Earth Rotational Seismology ( – )
Individual project: DFG - Individual Grants Programme | Project Number: AB 887/1-1 - Physical properties of deep subducted lithosphere ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/11-3 - HYPO-TZ - Generation and assessment of hypothetical seismic mantle transition zone structures ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/21-1 - 3G-GWD: Third Generation Gravitational Wave Telescope. Subproject 6 ( – )
Participation in BMBF-joint project: Federal Ministry of Education and Research | Project Number: 05A20PM3 - Untersuchung des Einflusses von Mantelstrukturen auf Beobachtungen des Erdkerns ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/16-1 - MISS - Minderung der Störwirkung von Windenergieanlagen auf seismologischen Stationen ( – )
EU-project hosted outside WWU: EC - European Regional Development Fund | Project Number: EFRE-0801044/KEE-2-002E - Untersuchung der Anisotropie der Mantelübergangszone mit PP und SS Vorläufern ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/10-2 - Phase transitions, Microstructures and their seismic signals from the Earth's mantle ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/18-1; SA 2585/3-1 - SPP 2017: Gebirgsbildungsprozesse in 4-Dimensionen (4D-MB) - Teilprojekt: UNIBRA/DSEBRA - der deutsche seismologische Beitrag zu AlpArray ( – )
Subproject in DFG-joint project hosted outside WWU: DFG - Priority Programme | Project Number: TH 1530/15-1 - CREEP – Complex RhEologies in Earth dynamics and industrial Processes ( – )
EU-project hosted outside WWU: EC H2020 - Marie Skłodowska-Curie Actions - Innovative Training Network | Project Number: 642029 - Physical properties of deep subducted lithosphere ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/11-1 - Investigation of the anisotropy of the mantle transition zone using PP and SS precursors ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/10-1 - Array study of the Reunion hotspot region from the mantle transition zone to the core-mantle boundary ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/9-1 - RHUM-RUM – RHUM-RUM (Reunion Hotspot and Upper Mantle & Reunions Unterer Mantel): Seismological imaging of a mantle plume under La Reunion, western Indian Ocean) ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH1530/7-1 - Investigation of Island uplift of the Azores Island region ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/6 - Deep seismic structures beneath India and South Atlantic ( – )
Individual project: DFG - Individual Grants Programme | Project Number: TH 1530/5-1 - Hochauflösende Untersuchungen der oberen Manteldiskontinuitäten ( – )
Individual project: DFG - Individual Grants Programme | Project Number: 574345 - SAMPLE – SPP 1375: South Atlantic Margin Processes and Links with onshore Evolution - SP: Seismic heterogeneities beneath the Atlantic and Africa - thermal or chemical? ( – )
Subproject in DFG-joint project hosted outside WWU: DFG - Priority Programme | Project Number: TH 1530/3-1 - DAAD Austauschprogramm: PPP Frankreich - PROCOPE ( – )
Participation in other joint projects: German Academic Exchange Service | Project Number: 50088873
- ErUM-Wave – Verbundprojekt 05D2022 - ErUM-Wave: Antizipation 3-dimensionaler Wellenfelder, Teilprojekt 1 ( – )
Publications
- . . ‘On the Importance of Using Directional Information in the Search for Lower Mantle Reflectors.’ The Seismic Record 3, No. 2: 96–104. doi: 10.1785/ 0320220038.
- . ‘Mapping the edge of subducted slabs in the lower mantle beneath India.’ Geophysical Journal International 2022.
- . ‘Generation of reflections and PKP precursors from a scattering layer in D".’ Geophysical Research Letters 2022.
- . ‘Detection and modelling of strong topography of mid-mantle structures beneath the North Atlantic.’ Geophysical Journal International 2022.
- . . ‘Reduction of wind-turbine-generated seismic noise with structural measures.’ Wind Energy Science 2022/7: 1227–1239. doi: 10.5194/wes-7-1227-2022.
- . . ‘Textures induced by the coesite-stishovite transition and implications for the visibility of the X-discontinuity.’ Geochemistry, Geophysics, Geosystems 23, No. 10: e2022GC010544. doi: https://doi.org/10.1029/2022GC010544.
- . ‘Modeling of seismic anisotropy observations reveals plausible lowermost mantle flow directions beneath Siberia.’ Geochemistry, Geohysics, Geosystems 2021.
- 10.3390/s21093139. . ‘Sensor Validation and Diagnostic Potential of Smartwatches in Movement Disorders.’ Sensors 2021. doi:
- . Seismic and mineral physics constraints on the D" layer. [online first]
- . ‘Small-scale scattering heterogeneities in the lowermost mantle from a global analysis of PKP precursors.’ Journal of Geophysical Research 125.
- . . ‘Dehydration Melting Below the Undersaturated Transition Zone.’ Gcubed 21.
- . ‘Mapping Lithological Boundaries in Mines with Array Seismology and In-situ AE monitoring.’ Geophysical Journal International 220: 59–70.
- 10.1093/gji/ggaa379. . ‘Location and Characteristics of the X-Discontinuity beneath SW Morocco and the adjacent shelf area using P-wave Receiver Functions.’ Geophysical Journal International 2020. doi:
- . ‘The signal of outermost-core stratification in body-wave and normal-mode data.’ Geophysical Journal International 223.
- . . ‘Location and characteristics of the X-discontinuity beneath SW Morocco and the adjacent shelf area using P-wave receiver functions.’ Geophysical Journal International 223 (3). doi: 10.1093/gji/ggaa379.
- . ‘New constraints on D” beneath the North Atlantic region from P and S travel times and amplitudes.’ Geophysical Journal International 216: 1132–1144.
- . ‘Localized ultra-low velocity zones at the eastern boundary of Pacific LLSVP.’ Earth and Planetary Science Letters 507: 40–49.
- . ‘Investigating the cause for polarity reversals of PP precursors beneath the Atlantic.’ Physics of teh Earth and Planetary Interior 286: 1132–1144.
- . . ‘Constraining lowermost mantle anisotropy with body waves: A synthetic modeling study.’ Geophysical Journal International 2017: 766–783.
- . ‘Constraining D" anisotropy with reflections and splitting.’ Journal of Geophysical Research 2019.
- . ‘An investigation of seismic anisotropy in the lowermost mantle beneath Iceland.’ Geophysical Journal International 219: S152–S166.
- . . ‘Investigating the seismic structure and visibility of dynamic plume models with seismic array methods.’ Geophysical Journal International 2019: S167-S194.
- 10.1038/s41467-019-13482-x. . ‘Kinetics and detectability of the bridgmanite to post-perovskite transformation in the Earth's D" layer.’ Nature Communications 10. doi:
- . . ‘SeisTomoPy: Fast visualization, comparison and calculations in global tomographic models.’ Seismological Reasearch Letters 300. doi: 10.1785/0220170142.
- . . ‘Effect of observed micropolar motions on wave propagation in deep Earth minerals.’ Physics of the Earth and Planetary Interiors 276: 215–225. doi: 10.1016/j.pepi.2017.04.006.
- 10.1016/j.pepi.2017.12.001. . ‘Detecting seismic anisotropy above the 410 km discontinuity using reflection coefficients of underside reflections.’ Physics of the Earth and Planetary Interiors 274, No. null: 170–183. doi:
- . . ‘Out-of-Plane Seismic Reflections Beneath the Pacific and Their Geophysical Implications.’ Journal of Geophysical Research: Solid Earth 123, No. 3: 2286–2302. doi: 10.1002/2017JB014728.
- . . ‘The AlpArray Seismic Network - a large-scale European experiment to image the Alpine orogeny.’ Surveys in Geophysics 39: 1–25.
- . . ‘Resolution Improvement and Reconstruction of Global Seismic Data using fk-Methods.’ Geophysical Journal International 212: 1288–1301.
- . ‘Constraints on the structure of the crust and lithosphere beneath the Azores Islands from teleseismic receiver functions.’ Geophysical Journal International 213: 824–835.
- . ‘Out-of-Plane Seismic Reflections Beneath the Pacific and Their Geophysical Implications.’ Journal of Geophysical Research 123: 2286–2302.
- . ‘The asymmetric seismic moment tensor in micropolar media.’ Bulletin of the Seismological Society of America 108: 1160–1170.
- 10.1029/2018GC007562. . ‘Irregular Transition Layer Beneath the Earth's Inner Core Boundary from Observations of Antipodal PKIKP and PKIIKP Waves.’ Gcubed 19. doi:
- . . ‘Using SP precursor waves to detect upper mantle discontinuities.’ Geophys. Journal International 215: 1914-1929.
- 10.1016/j.tecto.2017.04.013. . ‘Seismic scattering and absorption mapping from intermediate-depth earthquakes reveals complex tectonic interactions acting in the Vrancea region and surroundings (Romania).’ Tectonophysics null, No. null: 129–142. doi:
- 10.1130/B31538.1. . ‘Emergence and evolution of Santa Maria Island (azores)- The conundrum of uplifted islands revisited.’ Geological Society of America Bulletin 129, No. null: 372–391. doi:
- 10.1002/2017GL073440. . ‘A hot midmantle anomaly in the area of the Indian Ocean Geoid Low.’ Geophysical Research Letters 44, No. 13: 6702–6711. doi:
- 10.1002/2016GC006605. . ‘Compositional layering within the large low shear-wave velocity provinces in the lower mantle.’ Geochemistry, Geophysics, Geosystems 17, No. 12: 5056–5077. doi:
- 10.1016/j.epsl.2016.02.026. . ‘Seismic scattering and absorption mapping of debris flows, feeding paths, and tectonic units at Mount St. Helens volcano.’ Earth and Planetary Science Letters 442, No. null: 21–31. doi:
- 10.1002/2015JB012768. . ‘On the frequency dependence and spatial coherence of PKP precursor amplitudes.’ Journal of Geophysical Research B: Solid Earth 121, No. 3: 1873–1889. doi:
- 10.1093/gji/ggv496. . ‘Investigation of core-mantle boundary topography and lowermost mantle with P4KP waves.’ Geophysical Journal International 204, No. 2: 1060–1071. doi:
- 10.1093/gji/ggw098. . ‘Detecting lower-mantle slabs beneath Asia and the Aleutians.’ Geophysical Journal International 205, No. 3: 1512–1524. doi:
- . . ‘Detecting Lower-Mantle Slabs beneath Asia and the Aleutians.’ Geophysical Journal International 205, No. 3: 1512–1524. doi: 10.1093/gji/ggw098.
- . . ‘D" observations in the Pacific from PLUME Ocean Bottom Seismometer recordings.’ Geophysical Journal International 200: 851–862. doi: 10.1093/gji/ggu441.
- 10.1093/gji/ggv105. . ‘On the difficulties of detecting PP precursors.’ Geophysical Journal International 201, No. 3: 1666–1681. doi:
- 10.1016/j.epsl.2014.10.052. . ‘Topography of upper mantle seismic discontinuities beneath the North Atlantic: The Azores, Canary and Cape Verde plumes.’ Earth and Planetary Science Letters 409, No. null: 193–202. doi:
- 10.1007/978-3-319-15627-9_13. . ‘Seismic detection of post-perovskite inside the earth.’ In The Earth's Heterogeneous Mantle: A Geophysical, Geodynamical, and Geochemical Perspective, edited by , 391–440. Springer International Publishing. doi:
- 10.1016/j.pepi.2015.06.007. . ‘Probing the core-mantle boundary beneath Europe and Western Eurasia: A detailed study using PcP.’ Physics of the Earth and Planetary Interiors 246, No. null: 9–24. doi:
- 10.1002/2015GL063869. . ‘PKP precursors: Implications for global scatterers.’ Geophysical Research Letters 42, No. 10: 3829–3838. doi:
- 10.1002/2014GL062198. . ‘Imaging the D″ reflector with noise correlations.’ Geophysical Research Letters 42, No. 1: 60–65. doi:
- 10.1016/j.epsl.2015.09.026. . ‘Imaging Canary Island hotspot material beneath the lithosphere of Morocco and southern Spain.’ Earth and Planetary Science Letters 431, No. null: 186–194. doi:
- 10.1016/j.jvolgeores.2014.03.009. . ‘Multi-scale reasonable attenuation tomography analysis (MuRAT): An imaging algorithm designed for volcanic regions.’ Journal of Volcanology and Geothermal Research 277: 35. doi:
- 10.1093/gji/ggt511. . ‘Mantle transition zone structure beneath India and Western China from migration of PP and SS precursors.’ Geophysical Journal International 197, No. 1: 413. doi:
- 10.1093/gji/ggu214. . ‘Multiple-frequency tomography of the upper mantle beneath the African/Iberian collision zone.’ Geophysical Journal International 198, No. 3: 1473. doi:
- 10.1093/gji/ggu216. . ‘Crustal and upper-mantle structure beneath the western Atlas Mountains in SW Morocco derived from receiver functions.’ Geophysical Journal International 198, No. 3: 1485. doi:
- . . ‘Attenuation and scattering tomography of the deep plumbing system of Mount St. Helens.’ Journal of Geophysical Research - Solid Earth 119: 8223–8238. doi: 10.1002/2014JB011372.
- . . ‘Influence of station topography and Moho depth on the mislocation vectors for the Kyrgyz Broadband Seismic Network (KNET).’ Geophysical Journal International 193, No. 2: 949–959. doi: 10.1093/gji/ggt014.
- 10.1093/gji/ggt152. . ‘The origin of D" reflections: A systematic study of seismic array data sets.’ Geophysical Journal International 194, No. 2: 1091–1118. doi:
- 10.1093/gji/ggt273. . ‘Seismic energy envelopes in volcanic media: In need of boundary conditions.’ Geophysical Journal International 195, No. 2: 1102–1119. doi:
- . . ‘Scattered P′ P′ waves observed at short distances.’ Bulletin of the Seismological Society of America 101, No. 6: 2843–2854. doi: 10.1785/0120110157.
- . . ‘Subducted lithosphere beneath the Kuriles from migration of PP precursors.’ Earth and Planetary Science Letters . doi: 10.1016/j.epsl.2011.09.002.
- . . ‘Anisotropy as cause for polarity reversals of D′ reflections.’ Earth and Planetary Science Letters 307, No. 3-4: 369–376. doi: 10.1016/j.epsl.2011.05.011.
- . . ‘High resolution CMB imaging from migration of short-period core reflected phases.’ Physics of the Earth and Planetary Interiors 183, No. 1-2: 143–150. doi: 10.1016/j.pepi.2010.04.005.
- . . ‘Is the spin transition in Fe2+-bearing perovskite visible in seismology?’ Geophysical Research Letters 37.
- . . ‘P- and S-wave reflectors in D ' beneath southeast Asia.’ Geophysical Journal International 179, No. 2: 1080–1092. doi: 10.1111/j.1365-246X.2009.04328.x.
- . . ‘Improving Seismic Resolution Through Array Processing Techniques.’ Surveys in Geophysics 30, No. 4-5: 271–299. doi: 10.1007/s10712-009-9070-6.
- . . ‘Probing two low-velocity regions with PKP b-caustic amplitudes and scattering.’ Geophysical Journal International 178, No. 1: 503–512. doi: 10.1111/j.1365-246X.2009.04189.x.
- . . ‘Mantle transition zone structure along a profile in the SW Pacific: thermal and compositional variations.’ Geophysical Journal International 176, No. 1: 113–125. doi: 10.1111/j.1365-246X.2008.03934.x.
- . . ‘Seismic evidence for a sharp lithospheric base persisting to the lowermost mantle beneath the Caribbean.’ Geophysical Journal International 174, No. 3: 1019–1028. doi: 10.1111/j.1365-246X.2008.03880.x.
- . ‘Array Signal Processing.’ In Handbook of Signal Processing, edited by , 1655–1665. Springer VDI Verlag.
- . . ‘Slowness-backazimuth weighted migration: A new array approach to a high-resolution image.’ Geophysical Journal International 169, No. 3: 1201–1209. doi: 10.1111/j.1365-246X.2007.03379.x.
- . . ‘New insights into the P- and S-wave velocity structure of the D '' discontinuity beneath the Cocos plate.’ Geophysical Journal International 169, No. 2: 631–645. doi: 10.1111/j.1365-246X.2007.03350.x.
- . . ‘D '' anisotropy beneath Southeast Asia.’ Geophysical Research Letters 34, No. 4.
- . . ‘Investigating D '' structure beneath the North Atlantic.’ Physics of the Earth and Planetary Interiors 151, No. 1-2: 115–127.
- . . ‘A doubling of the post-perovskite phase boundary and structure of the Earth's lowermost mantle.’ Nature 434, No. 7035: 882–886. doi: 10.1038/nature03472.
- . . ‘Lower-mantle seismic discontinuities and the thermal morphology of subducted slabs.’ Earth and Planetary Science Letters 225, No. 1-2: 105–113. doi: 10.1016/j.epsl.2004.05.038.
- . . ‘High-resolution imaging of lowermost mantle structure under the Cocos plate.’ Journal of Geophysical Research 109, No. B8.
- . . ‘Motion of the Scotia Sea plates.’ Geophysical Journal International 155, No. 3: 789–804. doi: 10.1111/j.1365-246X.2003.02069.x.
- . . ‘Array seismology: Methods and applications.’ Reviews of Geophysics 40, No. 3.
- . . ‘Investigating the heterogeneity of the D '' region beneath the northern Pacific using a seismic array.’ Journal of Geophysical Research 107, No. B11.
- . . ‘The lowermost mantle beneath northern Asia - I. Multi-azimuth studies of a D '' heterogeneity.’ Geophysical Journal International 151, No. 1: 279–295. doi: 10.1046/j.1365-246X.2002.01759.x.
- . . ‘The lowermost mantle beneath northern Asia - II. Evidence for lower-mantle anisotropy.’ Geophysical Journal International 151, No. 1: 296–308. doi: 10.1046/j.1365-246X.2002.01760.x.
- . . ‘Acoustic simulation of P-wave propagation in a heterogeneous spherical earth: numerical method and application to precursor waves to PKPdf.’ Geophysical Journal International 141, No. 2: 307–320. doi: 10.1046/j.1365-246x.2000.00079.x.
- . . ‘Small scatterers in the lower mantle observed at German broadband arrays.’ Journal of Geophysical Research 104, No. B7: 15073–15088. doi: 10.1029/1999JB900128.
- . . ‘P velocity heterogeneities in the lower mantle determined with the German Regional Seismic Network: Improvement of previous models and results of 2D modelling.’ Physics of the Earth and Planetary Interiors 101, No. 1-2: 105–117. doi: 10.1016/S0031-9201(96)03245-1.
- . . ‘The structure of the lowermost mantle as determined from using seismic arrays.’ In Seismic Modelling of the Earth's structure, edited by , 399–442. Roma: Selbstverlag / Eigenverlag / Self-publishing.
Professor Dr. Christine Thomas
Professur für Geophysik (Prof. Thomas)
