Professor Dr. Christine Thomas

Professor Dr. Christine Thomas

Corrensstr. 24, room 310
48149 Münster

T: +49 251 83 33591

Research Focus
  • Global Seismology, Array Seismology, Processes und structures inside the Earth from crust to core, lowermost mantle and D" region, anisotropy in mantle and core, mititgation of wind turbine generated noise, prediction of the wavefield for gravitational wave detection, ice-dynamics and icequakes in polar regions (Antarctica, Greenland).
CV

Academic Education

PhD (Univ. Göttingen)
Undergraduate studies (Univ. Marburg (Pre-Diploma), Univ. Erlangen-Nürnberg (Diploma))

Positions

adjunct Professor, Geological Survey of Denmark and Greenland (GEUS), Copenhagen, DK
Professor
Lecturer/Senior Lecturer (Univ. Liverpool)
Postdoc (Univ. Leeds)
visiting scientist, Univ. Cambridge and British Antarctic survey, UK
Projects
Publications
  • , and . . “On the Importance of Using Directional Information in the Search for Lower Mantle Reflectors.The Seismic Record 3 (2): 96104. doi: 10.1785/0320220038.
  • , , and . “Geodynamic predictions of seismic structure and discontinuity topography of the mantle transition zone.Geophysical Journal International 234 (1): 355378. doi: 10.1093/gji/ggac478.
  • , , , and . “Studying inner core and lower mantle structure with a combination of PKP and converted SKP and PKS waves.Geophysical Journal International 235 (3): 20782093. doi: 10.1093/gji/ggad357.
  • , , , , and . “The seismic attenuation signature of collisional orogens and sedimentary basins within the Carpathian Orogen.Global and Planetary Change 223. doi: 10.1016/j.gloplacha.2023.104093.
  • , and . “Mapping the edge of subducted slabs in the lower mantle beneath India.Geophysical Journal International 2022.
  • , and . “Generation of reflections and PKP precursors from a scattering layer in D".Geophysical Research Letters 2022.
  • , , and . “Detection and modelling of strong topography of mid-mantle structures beneath the North Atlantic.Geophysical Journal International 2022.
  • , , and . . “Reduction of wind-turbine-generated seismic noise with structural measures.Wind Energy Science 2022/7: 12271239. doi: 10.5194/wes-7-1227-2022.
  • , , , , , , , , , , , and . . “Textures induced by the coesite-stishovite transition and implications for the visibility of the X-discontinuity.Geochemistry, Geophysics, Geosystems 23 (10): e2022GC010544. doi: 10.1029/2022GC010544.
  • , , , , and . “Kinetic effects on the 660-km-phase transition in mantle upstreams and seismological implications.Geophysical Journal International 231 (2): 877893. doi: 10.1093/gji/ggac196.
  • , , , , , , , , and . “UNIBRA/DSEBRA: The German Seismological Broadband Array and Its Contribution to AlpArray—Deployment and Performance.Seismological Research Letters 93 (4): 20772095. doi: 10.1785/0220210287.
  • , , , , , , and . . “Modeling of seismic anisotropy observations reveals plausible lowermost mantle flow directions beneath Siberia.Geochemistry, Geohysics, Geosystems 2021.
  • , , , , and . “Sensor Validation and Diagnostic Potential of Smartwatches in Movement Disorders.Sensors 2021. doi: 10.3390/s21093139.
  • , and . Seismic and mineral physics constraints on the D" layer
  • , and . “Small-scale scattering heterogeneities in the lowermost mantle from a global analysis of PKP precursors.Journal of Geophysical Research 125.
  • , , , , and . . “Dehydration Melting Below the Undersaturated Transition Zone.Gcubed 21.
  • , , , and . “Mapping Lithological Boundaries in Mines with Array Seismology and In-situ AE monitoring.Geophysical Journal International 220: 5970.
  • , , , , and . “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: 10.1093/gji/ggaa379.
  • , , , and . “The signal of outermost-core stratification in body-wave and normal-mode data.Geophysical Journal International 223.
  • , , , and . . “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.
  • , , and . “New constraints on D’ beneath the North Atlantic region from P and S travel times and amplitudes.Geophysical Journal International 216: 11321144.
  • , , and . “Localized ultra-low velocity zones at the eastern boundary of Pacific LLSVP.Earth and Planetary Science Letters 507: 4049.
  • , , , , and . “Investigating the cause for polarity reversals of PP precursors beneath the Atlantic.Physics of teh Earth and Planetary Interior 286: 11321144.
  • , , , , and . . “Constraining lowermost mantle anisotropy with body waves: A synthetic modeling study.Geophysical Journal International 2017: 766–783..
  • , , and . “Constraining D" anisotropy with reflections and splitting.Journal of Geophysical Research 2019.
  • , , , , and . “An investigation of seismic anisotropy in the lowermost mantle beneath Iceland.Geophysical Journal International 219: S152–S166..
  • , , , , and . . “Investigating the seismic structure and visibility of dynamic plume models with seismic array methods.Geophysical Journal International 2019: S167-S194.
  • , , , , , , and . “Kinetics and detectability of the bridgmanite to post-perovskite transformation in the Earth's D" layer.Nature Communications 10. doi: 10.1038/s41467-019-13482-x.
  • , , and . “SeisTomoPy: Fast visualization, comparison and calculations in global tomographic models.Seismological Reasearch Letters 300. doi: 10.1785/0220170142.
  • , , and . . “Effect of observed micropolar motions on wave propagation in deep Earth minerals.Physics of the Earth and Planetary Interiors 276: 215225. doi: 10.1016/j.pepi.2017.04.006.
  • , , , and . “Detecting seismic anisotropy above the 410 km discontinuity using reflection coefficients of underside reflections.Physics of the Earth and Planetary Interiors 274 (null): 170183. doi: 10.1016/j.pepi.2017.12.001.
  • , , and . . “Out-of-Plane Seismic Reflections Beneath the Pacific and Their Geophysical Implications.Journal of Geophysical Research: Solid Earth 123 (3): 22862302. doi: 10.1002/2017JB014728.
  • , , , , , , and . . “The AlpArray Seismic Network - a large-scale European experiment to image the Alpine orogeny.Surveys in Geophysics 39: 125.
  • , , , , and . . “Resolution Improvement and Reconstruction of Global Seismic Data using fk-Methods.Geophysical Journal International 212: 12881301.
  • , , , , and . “Constraints on the structure of the crust and lithosphere beneath the Azores Islands from teleseismic receiver functions.Geophysical Journal International 213: 824835.
  • , and . “Out-of-Plane Seismic Reflections Beneath the Pacific and Their Geophysical Implications.Journal of Geophysical Research 123: 22862302.
  • , , and . “The asymmetric seismic moment tensor in micropolar media.Bulletin of the Seismological Society of America 108: 11601170.
  • , , , , and . “Irregular Transition Layer Beneath the Earth's Inner Core Boundary from Observations of Antipodal PKIKP and PKIIKP Waves.Gcubed 19. doi: 10.1029/2018GC007562.
  • , , and . . “Using SP precursor waves to detect upper mantle discontinuities.Geophys. Journal International 215: 1914-1929.
  • , , , , and . “Seismic scattering and absorption mapping from intermediate-depth earthquakes reveals complex tectonic interactions acting in the Vrancea region and surroundings (Romania).Tectonophysics null (null): 129142. doi: 10.1016/j.tecto.2017.04.013.
  • , , , , , , , , , and . “Emergence and evolution of Santa Maria Island (azores)- The conundrum of uplifted islands revisited.Geological Society of America Bulletin 129 (null): 372391. doi: 10.1130/B31538.1.
  • , , , and . “A hot midmantle anomaly in the area of the Indian Ocean Geoid Low.Geophysical Research Letters 44 (13): 67026711. doi: 10.1002/2017GL073440.
  • , , , , and . “Compositional layering within the large low shear-wave velocity provinces in the lower mantle.Geochemistry, Geophysics, Geosystems 17 (12): 50565077. doi: 10.1002/2016GC006605.
  • , , , , and . “Seismic scattering and absorption mapping of debris flows, feeding paths, and tectonic units at Mount St. Helens volcano.Earth and Planetary Science Letters 442 (null): 2131. doi: 10.1016/j.epsl.2016.02.026.
  • , , and . “On the frequency dependence and spatial coherence of PKP precursor amplitudes.Journal of Geophysical Research B: Solid Earth 121 (3): 18731889. doi: 10.1002/2015JB012768.
  • , , , and . “Investigation of core-mantle boundary topography and lowermost mantle with P4KP waves.Geophysical Journal International 204 (2): 10601071. doi: 10.1093/gji/ggv496.
  • , and . “Detecting lower-mantle slabs beneath Asia and the Aleutians.Geophysical Journal International 205 (3): 15121524. doi: 10.1093/gji/ggw098.
  • , and . . “Detecting Lower-Mantle Slabs beneath Asia and the Aleutians.Geophysical Journal International 205 (3): 15121524. doi: 10.1093/gji/ggw098.
  • , and . . “D" observations in the Pacific from PLUME Ocean Bottom Seismometer recordings.Geophysical Journal International 200: 851862. doi: 10.1093/gji/ggu441.
  • , , , , and . “On the difficulties of detecting PP precursors.Geophysical Journal International 201 (3): 16661681. doi: 10.1093/gji/ggv105.
  • , , , and . “Topography of upper mantle seismic discontinuities beneath the North Atlantic: The Azores, Canary and Cape Verde plumes.Earth and Planetary Science Letters 409 (null): 193202. doi: 10.1016/j.epsl.2014.10.052.
  • , , and . “Seismic detection of post-perovskite inside the earth.” in The Earth's Heterogeneous Mantle: A Geophysical, Geodynamical, and Geochemical Perspective, Vol.null , edited by Springer. Springer International Publishing. doi: 10.1007/978-3-319-15627-9_13.
  • , , , and . “Probing the core-mantle boundary beneath Europe and Western Eurasia: A detailed study using PcP.Physics of the Earth and Planetary Interiors 246 (null): 924. doi: 10.1016/j.pepi.2015.06.007.
  • , , and . “PKP precursors: Implications for global scatterers.Geophysical Research Letters 42 (10): 38293838. doi: 10.1002/2015GL063869.
  • , , , and . “Imaging the D″ reflector with noise correlations.Geophysical Research Letters 42 (1): 6065. doi: 10.1002/2014GL062198.
  • , , , and . “Imaging Canary Island hotspot material beneath the lithosphere of Morocco and southern Spain.Earth and Planetary Science Letters 431 (null): 186194. doi: 10.1016/j.epsl.2015.09.026.
  • , , and . “Multi-scale reasonable attenuation tomography analysis (MuRAT): An imaging algorithm designed for volcanic regions.Journal of Volcanology and Geothermal Research 277: 35. doi: 10.1016/j.jvolgeores.2014.03.009.
  • , , , , and . “Mantle transition zone structure beneath India and Western China from migration of PP and SS precursors.Geophysical Journal International 197 (1): 413. doi: 10.1093/gji/ggt511.
  • , , , , and . . “Attenuation and scattering tomography of the deep plumbing system of Mount St. Helens.Journal of Geophysical Research - Solid Earth 119: 82238238. doi: 10.1002/2014JB011372.
  • , , , , and . “Multiple-frequency tomography of the upper mantle beneath the African/Iberian collision zone.Geophysical Journal International 198 (3): 1473. doi: 10.1093/gji/ggu214.
  • , , , , and . “Crustal and upper-mantle structure beneath the western Atlas Mountains in SW Morocco derived from receiver functions.Geophysical Journal International 198 (3): 1485. doi: 10.1093/gji/ggu216.
  • , , and . . “Influence of station topography and Moho depth on the mislocation vectors for the Kyrgyz Broadband Seismic Network (KNET).Geophysical Journal International 193 (2): 949959. doi: 10.1093/gji/ggt014.
  • , and . “The origin of D" reflections: A systematic study of seismic array data sets.Geophysical Journal International 194 (2): 10911118. doi: 10.1093/gji/ggt152.
  • , , , , and . “Seismic energy envelopes in volcanic media: In need of boundary conditions.Geophysical Journal International 195 (2): 11021119. doi: 10.1093/gji/ggt273.
  • , , , and . . “Scattered P′ P′ waves observed at short distances.Bulletin of the Seismological Society of America 101 (6): 28432854. doi: 10.1785/0120110157.
  • , and . . “Subducted lithosphere beneath the Kuriles from migration of PP precursors.Earth and Planetary Science Letters. doi: 10.1016/j.epsl.2011.09.002.
  • , , , and . . “Anisotropy as cause for polarity reversals of D′ reflections.Earth and Planetary Science Letters 307 (3-4): 369376. doi: 10.1016/j.epsl.2011.05.011.
  • , and . . “High resolution CMB imaging from migration of short-period core reflected phases.Physics of the Earth and Planetary Interiors 183 (1-2): 143150. doi: 10.1016/j.pepi.2010.04.005.
  • , , and . . “Is the spin transition in Fe2+-bearing perovskite visible in seismology?Geophysical Research Letters 37.
  • , , and . . “P- and S-wave reflectors in D ' beneath southeast Asia.Geophysical Journal International 179 (2): 10801092. doi: 10.1111/j.1365-246X.2009.04328.x.
  • , and . . “Improving Seismic Resolution Through Array Processing Techniques.Surveys in Geophysics 30 (4-5): 271299. doi: 10.1007/s10712-009-9070-6.
  • , , and . . “Probing two low-velocity regions with PKP b-caustic amplitudes and scattering.Geophysical Journal International 178 (1): 503512. doi: 10.1111/j.1365-246X.2009.04189.x.
  • , and . . “Mantle transition zone structure along a profile in the SW Pacific: thermal and compositional variations.Geophysical Journal International 176 (1): 113125. doi: 10.1111/j.1365-246X.2008.03934.x.
  • , , , , , and . . “Seismic evidence for a sharp lithospheric base persisting to the lowermost mantle beneath the Caribbean.Geophysical Journal International 174 (3): 10191028. doi: 10.1111/j.1365-246X.2008.03880.x.
  • . “Array Signal Processing.” in Handbook of Signal Processing, edited by Havelock, D., Kuwano, Vorländer S. and M.. Springer VDI Verlag.
  • , , and . . “Slowness-backazimuth weighted migration: A new array approach to a high-resolution image.Geophysical Journal International 169 (3): 12011209. doi: 10.1111/j.1365-246X.2007.03379.x.
  • , , , and . . “New insights into the P- and S-wave velocity structure of the D '' discontinuity beneath the Cocos plate.Geophysical Journal International 169 (2): 631645. doi: 10.1111/j.1365-246X.2007.03350.x.
  • , , and . . “D '' anisotropy beneath Southeast Asia.Geophysical Research Letters 34 (4).
  • , and . . “Investigating D '' structure beneath the North Atlantic.Physics of the Earth and Planetary Interiors 151 (1-2): 115127.
  • , , and . . “A doubling of the post-perovskite phase boundary and structure of the Earth's lowermost mantle.Nature 434 (7035): 882886. doi: 10.1038/nature03472.
  • , , and . . “Lower-mantle seismic discontinuities and the thermal morphology of subducted slabs.Earth and Planetary Science Letters 225 (1-2): 105113. doi: 10.1016/j.epsl.2004.05.038.
  • , , and . . “High-resolution imaging of lowermost mantle structure under the Cocos plate.Journal of Geophysical Research 109 (B8).
  • , , and . . “Motion of the Scotia Sea plates.Geophysical Journal International 155 (3): 789804. doi: 10.1111/j.1365-246X.2003.02069.x.
  • , and . . “Array seismology: Methods and applications.Reviews of Geophysics 40 (3).
  • , , and . . “Investigating the heterogeneity of the D '' region beneath the northern Pacific using a seismic array.Journal of Geophysical Research 107 (B11).
  • , , and . . “The lowermost mantle beneath northern Asia - I. Multi-azimuth studies of a D '' heterogeneity.Geophysical Journal International 151 (1): 279295. doi: 10.1046/j.1365-246X.2002.01759.x.
  • , and . . “The lowermost mantle beneath northern Asia - II. Evidence for lower-mantle anisotropy.Geophysical Journal International 151 (1): 296308. doi: 10.1046/j.1365-246X.2002.01760.x.
  • , , , and . . “Acoustic simulation of P-wave propagation in a heterogeneous spherical earth: numerical method and application to precursor waves to PKPdf.Geophysical Journal International 141 (2): 307320. doi: 10.1046/j.1365-246x.2000.00079.x.
  • , , , and . . “Small scatterers in the lower mantle observed at German broadband arrays.Journal of Geophysical Research 104 (B7): 1507315088. doi: 10.1029/1999JB900128.
  • , and . . “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 (1-2): 105117. doi: 10.1016/S0031-9201(96)03245-1.
  • , , , and . . “The structure of the lowermost mantle as determined from using seismic arrays.” in Seismic Modelling of the Earth's structure, edited by E. Boschi, G. Ekström and A Morelli. Roma: Selbstverlag / Eigenverlag.