3D Earth – A Dynamic Living Planet

  • 3D Earth will establish a global 3D model of the crust and upper mantle based on the analysis of satellite gravity and (electro-)magnetic missions in combination with seismological models and analyse the feedback between processes in Earth’s deep mantle and the lithosphere.

    The prime objective is to integrate, for the first time, seismological models and satellite observation towards a consistent image of the crust and upper mantle in 3D.  Satellite gravity and (electro-) magnetic data help to transfer velocity images towards composition and temperature that reflect the tectonic state and evolution of the Earth and offer a novel understanding of the processes that shape our planet.

    The limitations and sensitivity of the different geophysical methods in context of their imaging capability are analysed and combined with forward and inverse modelling to be able to evaluate the possibilities of these approaches to reveal the Earth’s structure. For the inverse modelling, we will explore the sensitivity of joint inversion to the individual data sets and compare these to inversions relying on only a single or a few data sets.

    Selected case examples will provide the possibility to test these approaches on a global and regional scale. This will result in a framework for consistent models that will be used to link the crust and upper mantle to the dynamic mantle.

    To analyse the structure of the deep mantle, we will try to combine knowledge about mantle conductivity and mineral physics with the geophysical observations. We will assess the role of Earth’s internal layering and mantle convection on the evolution of the Earth’s surface (dynamic topography). The data and methods we propose to use in this study will significantly supersede previous attempts and will be a first step towards an understanding of the Earth in space and time, a necessary step towards the development of a 4D Earth model.

     

    Project overview

    The concept of 3D Earth – A Dynamic Living Planet. Background image taken from Haagmans (2014)

    We will analyse the limitations and sensitivities of the different geophysical methods in the context of their imaging capability and plan to combine forward and inverse modelling to be able to evaluate the possibilities of these approaches to reveal the Earth’s structure. For the inverse modelling, we will explore the sensitivity of joint inversion to the individual data sets and compare these to inversions relying on only a single or a few data sets.

    Selected case examples will provide the possibility to test these approaches on a global and regional scale. This will result in a framework for consistent models that will be used to link the crust and upper mantle to the dynamic mantle.

    To analyse the structure of the deep mantle, we will attempt to combine knowledge about mantle conductivity and mineral physics with the geophysical observations. We will assess the role of Earth’s internal layering and mantle convection on the evolution of the Earth’s surface (dynamic topography). The data and methods we propose to use in this study will significantly supersede previous attempts and will be a first step towards an understanding of the Earth in space and time, a necessary step towards the development of a 4D Earth model.

  • Putten, Nethermod, Netherlands 2017

    • Root, B.C. The effect of regularisation in global tomography on mantle density models, NetherMod 2017 Conference, Putten, the Netherlands, 2017.
       

    Zwei Studenten und eine Tasse Kaffee

    • Ebbing, J., and 3D Earth study team. Integrating seismological and satellite gravity data for consistent 3D Earth models. IAG-IASPEI Symposium, Kobe, 2017.

     

    Zwei Studenten und eine Tasse Kaffee

    • Ebbing, J. Root, B. Szwillus, W. and 3D Earth Study Team. Consistent 3D Earth modelling by integrating seismological and satellite gravity data. Annual Meeting of the German Geophysical Society, Potsdam, 2017.
    • Szwillus, W.,,  Ebbing, J., Mooney,  W.D. Impact of crustal model errors on mantle gravity residuals. Annual Meeting of the German Geophysical Society, Potsdam, 2017.

     

    Zwei Studenten und eine Tasse Kaffee

    • Ebbing, J.: 3D Earth-Satellite gravity and magnetic gradients for the lithosphere. Swarm Science Meeting and Geodetic Workshop, Banff, Canada.
    • Fullea, J., Lebedev. S., Martinec, Z. Global thermochemical imaging of the lithosphere using satellite and terrestrial observations,Swarm Science Meeting and Geodetic Workshop, Banff, Canada.
    • Holzrichter, N., Ebbing, J., Bouman, J., Kotsiaros, S.: Processing and analysis of satellite gravity and magnetic data for modelling the lithosphere in framework of 3D Earth. Swarm Science Meeting and Geodetic Workshop, Banff, Canada.
    • Root, B.C., W. van der Wal, J. Ebbing, and P. Koelermeijer. GRavity signal of the Core-Mantle Boundary and density structures in this region. Swarm Science Meeting and Geodetic Workshop, Banff, Canada, 2017.
    • Weise, B.; Ebbing, J.; Bouman, J.; Baykiev, E.; Brönner, M.; Holzrichter, N.; Kotsiaros, S.; Pappa, F.; Szwillus, W.; Haagmans, R.: Satellite Gradients For Lithospheric Modelling – Sensitivity Tests Over The Northern Segment Of The Trans-European Suture Zone. Swarm Science Meeting and Geodetic Workshop, Banff, Canada.

     

    Zwei Studenten und eine Tasse Kaffee

    • Ebbing, J.: Satellite gravity and magnetic gradients for the lithosphere. AGU Fall Meeting (Invited talk), AGU fall meeting 2016
    • Ebbing, J., Zink, A., Szwillus, W. and 3D Earth Group: The role of the lithosphere for isostasy and dynamic topography. AGU Fall Meeting 2016 (Poster).
    • Fullea, J., Lebedev. S., Martinec, Z. Global thermochemical inversion of seismic waveforms, gravity satellite data, and topography, AGU Fall meeting 2016 (poster)

    Zwei Studenten und eine Tasse Kaffee

    • Fullea, J.,  Lebedev, S.,  Martinec, Z., EART-23 - Global Thermochemical Inversion of Seismic Waveforms,Gravity Satellite Data and Topography, Paper 715 - Session title: Solid Earth & Near Earth Posters, ESA living planet symposium, Prague, Czech Republic, 2016

     

    Zwei Studenten und eine Tasse Kaffee

    • Root, B., van der Wal, W., Ebbing, J.: Gravity signal of density anomalies near the crust-mantle boundary (Poster), 15th Symposium of SEDI, Study of the Earth's Deep Interior, 24.-29.07.2016
    • Szwillus, W., Ebbing, J., Afonso, J.C., Bouman, J., Flury, J., Fullea, J., Gaina, C., Holzrichter, N., Lebedev, S., Mandea, M., Martinec, Z., Moorkamp, M., Root, B., van der Wal, W., Hagmans, R.,  15th Symposium of SEDI, Study of the Earth's Deep Interior, 24.-29.07.2016