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Dr Ana Ferreira
011B, Kathleen Lonsdale Building
London
Tel: 02076797704
Appointment
  • Reader in Seismology
  • Dept of Earth Sciences
  • Faculty of Maths & Physical Sciences
Biography

After obtaining my diploma in Physics from IST, University of Lisbon, I received my DPhil in geophysics (seismology) from Oxford University in 2005. Following postdoctoral work at Oxford, in 2007 I took a lectureship position at the University of East Anglia, UK, where I established and led a new research group in global seismology. In Sept. 2013 I moved to UCL Earth Sciences as a lecturer in seismology. I have served in several committees, being currently a member of the Scientific Advisory Board of RESIF (French national geophysical infrastructure), NERC’s Geophysics Facilities steering committee and Technical Advisory Committee of the Irish Centre for Research in Applied Geosciences (iCRAG). I am also a UK representative in the management committee of the COST Action ES1401 TIDES.

Research group members:


- Dr Januka Attanayake, PDRA (based at IST, Lisbon)
FCT project: AQUAREL: Accurate QUAntification of Regional earthquakes and Earth structure: appLication to western Iberia

- Dr Lewis Schardong, PDRA (NERC-funded)
Project: Origin of seismic heterogeneity and attenuation in the Earth's upper mantle and transition zone

- Dr Jose-Angel Comino, PDRA (Spanish Gov.; based in Granada, Spain with D. Stich)
Project: Rupture characterisation of large earthquakes

- Michael Frietsch, PhD student (UCL Impact)
Project: Seismo-geodesy analysis of global earthquakes and 3-D Earth structure

- Laura Parisi, PhD student (UEA and QUEST, EU)
Project: Approaches for full waveform modelling of global Earth structure

- Andea Berbellini, PhD student (Italian Gov.; based in Bologna, Italy with A. Morelli)
Project: Crustal structure from Rayleigh wave ellipticity data

- Ana Domingues, PhD student (FCT, co-tutelle ULondon-IST with J. Fonseca)
Project: Tomographic study of the East African rift in Mozambique

- Maria Nader, PhD student (QUEST; based at LMU, Germany with H. Igel)
Project: Investigation of long-period rotational signals

Former group members:

-Sung-Joon Chang (Postdoc, 2010-2013), now assistant professor at Kangwon National University, S. Korea

-Jennifer Weston (PhD student, 2009-2013), now postdoc at ASU, USA

-Kostas Lentas (PhD student, 2010-2013), now postdoc at the International Seismological Centre

For prospective group members:

If you have a PhD and you are interested in joining my research group, I am happy to discuss and help with potential applications for fellowships (e.g., EU Marie Curie, NERC, Royal Society, Newton, etc). For PhD and postdoctoral positions available in the group, please visit UCL's PGR and HR webpages.

Research Summary
I study deep Earth structure and earthquake source processes to obtain an integrated understanding of the processes controlling the dynamic behavior of our planet from the surface down to the lowermost mantle. My research group builds and uses novel methods for modelling seismic and, more recently, geodetic data. Our research work includes: 

    •    Seismic tomography
We have built new 3D global models of seismic anisotropy (the variation of wavespeed with direction, a potential proxy for flow) in the mantle, showing that deep Earth imaging can be strongly affected by assumptions about the crust (Ferreira et al. 2010). We are currently building a new suite of whole-mantle anisotropy models using multiple datasets (Chang et al. 2014).

    •    Earthquake source processes
We study earthquake sources using a wide range of data, notably seismic surface waves (e.g., Ferreira et al. 2011), low-frequency normal modes (Lentas et al. 2014) and geodetic (InSAR) data (e.g., Weston et al. 2012, 2014). We recently compiled the first archive of source models based on InSAR, the ICMT database (Weston et al. 2011; Ferreira et al. 2011).

    •    Forward modelling and multidisciplinary data
We use purely numerical and asymptotic techniques to simulate seismic wave propagation in realistic media, such as the full ray theory approach that we implemented to simulate surface waves in the 3D Earth (Ferreira & Woodhouse 2007). We model not only seismic data, but also other data types such as tilt (Ferreira et al. 2006) and rotational signals (e.g. Ferreira & Igel 2009).

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