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The Australian National University
Research School of Earth Sciences
Earth Physics - Dr. N. Rawlinson

Nick Rawlinson 

Position: Senior Fellow

Research School of Earth Sciences,

Australian National University
 

Canberra, ACT 0200, AUSTRALIA

tel: +61-2-6125 5512
fax: +61-2-6257 2737

Email: nick@rses.anu.edu.au



Research Interests

Ray-tracing/wavefront propagation in 3-D complex media. In particular, I am interested in the two point problem of locating ray paths between a source and a receiver. Currently, I am investigating methods of determining multi-paths through media that may include large variations in velocity and interface geometry. All source-receiver paths along which seismic energy of significant amplitude propagates are potentially useful, especially with the advent of modern broadband 3-component recorders. Another area of interest is the geophysical inverse problem. For example, the use of tomographic style inversion methods to image the subsurface using the properties of seismic waves (e.g. traveltimes).

Wavefront propagation in complex media

WOMBAT seismic array

Seismic tomography with irregular parameterization



Software

As part of my research at RSES, I have developed, or been involved in the development of, several software packages. Follow the links below to download code for performing adaptive stacking, teleseismic tomography in 3-D spherical coorinates using fast marching, and 3-D ray tracing in complex layered media.

Adaptive stacking code for arrival time residual estimation and array beamforming.

3-D wavefront tracking code for tracking phases comprising any number of reflection and transmission branches in complex layered media. Uses fast marching to compute traveltimes, and can also generate raypaths and Frechet derivatives.

FMTT: A Teleseismic tomography code for mapping relative arrival time residuals as 3-D variations in wavespeed beneath a seismic array.

FMST: A spherical shell (surface wave) tomography code for mapping traveltime residuals as 2-D variations in wavespeed.

FMTOMO: for mapping a variety of traveltime datasets (e.g. local earthquake, teleseismic, reflection, wide-angle) as 3-D variations in seismic wavespeed and interface structure. Sources may also be relocated.



Teaching

Follow the link below to access a series of lectures on seismology that I give as part of the RSES Earth Physics Masters course. A wide range of topics are covered, including continuum mechanics, derivation of the elastic wave equation, body waves, surface waves and dispersion, ray theory, anisotropy, earthquake relocation, earthquake source mechanisms and radiation patterns, earthquake magnitudes, free oscillations and seismic tomography.

Teaching material



Academic Background

Education

BSc (hons): Monash University, 1997.

PhD: Monash University, 2001.

Inversion of seismic data for layered crustal structure

[Download as PDF (52 Mb)]

Appointments

Postdoctoral Fellow
Research School of Earth Sciences
Australian National University
2001-2003

Research Fellow
Research School of Earth Sciences
Australian National University
2004

ARC Research Fellow
Research School of Earth Sciences
Australian National University
2005-2007

Fellow
Research School of Earth Sciences
Australian National University
2008-

Awards/Scholarships

Leo Gleeson Prize in Mathematics (1996)
Australian Postgraduate Award (1997-2000)
AGCRC Research Scholarship (1997-2000)

Research Grants

Australian Research Council Discovery project DP0451133
2004-2006
AUS$255,000 over 3 years
Project title: Multi-arrival wavefront tracking for improved seismic imaging of the Earth's interior

Chief Investigators: Nick Rawlinson, Malcolm Sambridge

Australian Research Council Discovery project DP0556282
2005-2007
AUS$305,000 over 3 years
Project title: Exploring deep Australia: 3-D imaging of the lithosphere beneath south-east Australia using multiple high density seismic arrays

Chief Investigator: Nick Rawlinson

Australian Research Council Discovery project DP0770131
2007-2009
AUS$251,000 over 3 years
Project title: From crust to core: probing the heterogeneity of the Earth with seismic arrays

Chief Investigators: Brian Kennett, Nick Rawlinson

Australian Research Council Discovery project DP0986750
2009-20011
AUS$300,000 over 3 years
Project title: Seismic tomography using signal and noise: A new window into deep Earth

Chief Investigators: Nick Rawlinson, Malcolm Sambridge, Hrvoje Tkalcic
Partner Investigator: Dick Glen

Australian Research Council Linkage project LP0990266
2009-20011
AUS$100,000 over 3 years
Project title: 3D seismic velocity structure for geothermal exploration: a novel approach combining ambient and passive seismic methods

Chief Investigators: Anya Reading, Nick Rawlinson

Australian Research Council Linkage project LP110100256
2011-2013
AUS$314,000 over 3 years
Project title: Beneath Bass Strait: linking Tasmania and mainland Australia using a novel seismic experiment

Chief Investigators: Nick Rawlinson, Anya Reading, Nick Direen

EIF round 3
2011-2014
AUS$3,950,000 over 4 years
Project title: The Australian Geophysical Observing System - Earth Sounding

Coordinators: Nick Rawlinson, Graham Heinson

Australian Research Council Discovery project DP120103673
2012-2014
AUS$420,000 over 3 years
Project title: Down under down under: using multi-scale seismic tomography to image beneath Australia's Great Artesian Basin

Chief Investigators: Nick Rawlinson, Yingjie Yang

Australian Research Council Discovery project DP120102372
2012-2014
AUS$285,000 over 3 years
Project title: What lies beneath: unveiling the fine-scale 3D compositional and thermal structure of the sub continental lithosphere and upper mantle

Chief Investigators: Juan C. Afonso, Yingjie Yang, Nick Rawlinson, Alan G. Jones, James Connolly, Sergei Lebedev

Australian Research Council LIEF project LE120100061
2012
AUS$285,000 over 1 year
Project title: A new seismic facility for investigating tectonic collision zones, earthquake hazards and passive imaging techniques

Chief Investigators: Nick Rawlinson, David Lumley, Mike Sandiford, Phil Cummins, Mike Dentith, Gordon lister, Jeff Shragge, Tim Rawling, Sara Pozgay



Publications

(1) International Refereed Journals

Fishwick, S. and Rawlinson, N. 2012. 3-D structure of the Australian lithosphere from evolving seismic datasets. Australian Journal of Earth Sciences 59, 809-826.
Download as PDF (6.2 Mb)

Rawlinson, N. and Goleby, B. R. 2012. Seismic imaging of continents and their margins: New research at the confluence of active and passive seismology. Tectonophysics 572, 1-6.
Download as PDF (193 kb)

Tkalcic, H., Rawlinson, N., Arroucau, P., Kumar, A. and Kennett, B. L. N. 2012. Multistep modelling of receiver-based seismic and ambient noise data from WOMBAT array: crustal structure beneath southeast Australia. Geophysical Journal International, 189, , 1680-1700.
Download as PDF (4.7 Mb)

Bodin, T., Sambridge, M., Rawlinson, N., Arroucau, P. and Rawlinson, N. 2012. Transdimensional tomography with unknown data noise. Geophysical Journal International, 189, 1536-1556.
Download as PDF (16 Mb)

Bodin, T., Sambridge, M., Tkalcic, H., Arroucau, P., Gallagher, K. and Rawlinson, N. 2012. Transdimensional inversion of receiver functions and surface wave dispersion. Journal of Geophysical Research 117, B02301, doi:10.1029/2011JB008560.
Download as PDF (0.7 Mb)

Young, M. K., Tkalcic, H., Rawlinson, N. and Reading, A. M. 2012. Exploiting seismic signal and noise in an intracratonic environment to constrain crustal structure and source parameters of infrequent earthquakes. Geophysical Journal International 188, 1303-1321.
Download as PDF (5.6 Mb)

Rawlinson, N. and Fishwick, S. 2012. Seismic structure of the southeast Australian lithosphere from surface and body wave tomography. Tectonophysics, doi:10.1016/j.tecto.2011.11.016.
Download as PDF (5.6 Mb)

Young, M. K., Rawlinson, N., Arroucau, P., Reading, A. M. and Tkalcic, H. 2011. High-frequency ambient noise tomography of southeast Australia: New constraints on Tasmania's tectonic past. Geophysical Research Letters 38, L13313, doi:10.1029/2011GL047971.
Download as PDF (5.6 Mb)

Rawlinson, N., Kennett, B. L. N., Vanacore, E., Glen, R. A. and Fishwick, S. 2011. The structure of the upper mantle beneath the Delamerian and Lachlan orogens from simultaneous inversion of multiple teleseismic datasets. Gondwana Research,19, 788-799.
Download as PDF (3.9 Mb)

Rawlinson, N., Sambridge, M. and Hauser, J. 2010. Multipathing, reciprocal traveltime fields and raylets. Geophys. J. Int. 181, 1077-1092.
Download as PDF (2.1 Mb)

Rawlinson, N., Tkalcic, H. and Reading, A. M. 2010. Structure of the Tasmanian lithosphere from 3-D seismic tomography. Australian Journal of Earth Sciences 57, 381-394.
Download as PDF (5.0 Mb)

Arroucau, P., Rawlinson, N. and Sambridge, M. 2010. New insight into Cainozoic sedimentary basins and Palaeozoic suture zones in southeast Australia from ambient noise surface wave tomography. Geophys. Res. Lett. 37, L07303, doi:10.1029/2009GL041974.
Download as PDF (2.0 Mb)

Musgrave, R. and Rawlinson, N. 2010. Linking the upper crust to the upper mantle: comparison of teleseismic tomography with long-wavelength features of the gravity and magnetic fields of southeastern Australia. Exploration Geophysics 41, 155-162.
Download as PDF (2.0 Mb)

Rawlinson, N., Pozgay, S. and Fishwick, S. 2010. Seismic tomography: A window into deep Earth. Phys. Earth Planet. Inter. 178, 101-135.
Download as PDF (5.9 Mb)

Schellart, W. P. and Rawlinson, N. 2010. Convergent plate margin dynamics: New perspectives from structural geology, geophysics and geodynamic modelling. Tectonophysics 483, 4-19.
Download as PDF (731 Kb)

Schellart, W. P. and Rawlinson, N. 2010. Introduction to the special issue on convergent plate margin dynamics. Tectonophysics 483, 1-3.
Download as PDF (104 Kb)

Hauser, J., M. Sambridge, and N. Rawlinson, 2008. Multiarrival wavefront tracking and its applications. Geochem. Geophys. Geosyst. 9, doi:10.1029/2008GC002069
Download as PDF (2.9 Mb)

Tkalcic, H., Rodgers, A., Rawlinson, N., McEwan, D. J. and Snelson, C. M., 2008. Teleseismic travel time delays in the Las Vegas Basin. Bull. Seismol. Soc. Am. 98, 2047-2060.
Download as PDF (1.2 Mb)

Rawlinson, N. and Kennett, B. L. N., 2008. Teleseismic tomography of the upper mantle beneath the southern Lachlan Orogen. Phys. Earth Planet. Inter. 167, 84-97.
Download as PDF (3.7 Mb)

Rawlinson, N., Sambridge, M. and Saygin, E., 2008. A dynamic objective function technique for generating multiple solution models in seismic tomography. Geophys. J. Int., 174, 295-308.
Download as PDF (0.9 Mb)

Sambridge, M., Rickwood, P., Rawlinson, N. and Sommacal, S., 2007. Automatic Differentiation in geophysical inverse problems. Geophys. J. Int., 170, 1-8.
Download as PDF (4.9 Mb)

Rawlinson, N., Hauser, J. and Sambridge, M., 2007. Seismic ray tracing and wavefront tracking in laterally heterogeneous media. Advances in Geophysics, 49. 203-267.
Download as PDF (5.3 Mb)

Rawlinson, N., de Kool, M. and Sambridge, M., 2006. Seismic wavefront tracking in 3-D heterogeneous media: applications with multiple data classes. Explor. Geophys., 37, 322-330.
Download as PDF (13.9 Mb)

Hauser, J., Sambridge, M. and Rawlinson, N. 2006. Phase space methods for multi arrival wavefronts. Explor. Geophys., 37, 331-339.
Download as PDF (7.3 Mb)

Rawlinson, N. and Urvoy, M., 2006. Simultaneous inversion of active and passive source datasets for 3-D seismic structure with application to Tasmania. Geophys. Res. Lett., 33 L24313, doi:10.1029/2006GL028105.
Download as PDF (900 Kb)

de Kool, M., Rawlinson, N. and Sambridge, M. 2006. A practical grid based method for tracking multiple refraction and reflection phases in 3D heterogeneous media, Geophys. J. Int., 167, 253-270.
Download as PDF (2.3 Mb)

Rawlinson, N., Kennett, B. L. N. and Heintz, M. 2006. Insights into the structure of the upper mantle beneath the Murray Basin from 3-D teleseismic tomography, Aust. J. Earth Sci., 53, 595-604.
Download as PDF (2.0 Mb)

Rawlinson, N., Reading, A. M. and Kennett, B. L. N., 2006. Lithospheric structure of Tasmania from a novel form of teleseismic tomography, J. Geophys. Res., 111, B02301, doi:10.1029/2005JB003803.
Download as PDF (13.6 Mb)

Rawlinson, N. and Sambridge M., 2005. The fast marching method: An effective tool for tomographic imaging and tracking multiple phases in complex layered media, Explor. Geophys., 36, 341-350.
Download as PDF (3.8 Mb)

Sambridge, M. and Rawlinson, N., 2005. Seismic tomography with irregular meshes, Geophysical Monograph Series, 157, 49-65.
Download as PDF (8.7 Mb)

Kennett, B. L. N., Fishwick, S., Reading, A. M. and Rawlinson, N., 2004. Contrasts in mantle structure beneath Australia: relation to Tasman Lines?, Aust. J. Earth Sci., 51, 563-569.
Download as PDF (3.7 Mb)

Rawlinson, N. and Kennett, B. L. N., 2004. Rapid estimation of relative and absolute delay times across a network by adaptive stacking, Geophys. J. Int., 157, 332-340.
Download as PDF (1.5 Mb)

Rawlinson, N. and Sambridge, M., 2004. Multiple reflection and transmission phases in complex layered media using a multistage fast marching method, Geophysics, 69, 1338-1350.
Download as PDF (1.0 Mb)

Rawlinson, N. and Sambridge, M., 2004. Wavefront evolution in strongly heterogeneous layered media using the fast marching method, Geophys. J. Int., 156, 631-647.
Download as PDF (3.3 Mb)

Rawlinson, N. and Sambridge, M., 2003. Irregular interface parameterization in 3-D wide-angle seismic traveltime tomography, Geophys. J. Int., 155, 79-92.
Download as PDF (3.2 Mb)

Rawlinson, N. and Sambridge, M., 2003. Seismic traveltime tomography of the crust and lithosphere, Advances in Geophysics, 46, 81-198.
Download as PDF (3.5 Mb)

Rawlinson, N., Houseman, G. A., Collins, C. D. N. and Drummond, B. J., 2001. New evidence of Tasmania's tectonic history from a novel seismic experiment, Geophys. Res. Lett., 28, 3337-3340.
Download as PDF (1.3 Mb)

Rawlinson, N., Houseman, G. A. and Collins, C. D. N., 2001. Inversion of seismic refraction and wide-angle reflection traveltimes for 3-D layered crustal structure, Geophys. J. Int., 145, 381-401.
Download as PDF (3.7 Mb)

Drummond, B. J., Barton, T. J., Korsch, R. J., Rawlinson, N., Yeates, A. N., Collins, C. D. N. and Brown, A.V., 2000. Evidence for crustal extension and inversion in eastern Tasmania, Australia, during the Neoproterozoic and Early Palaeozoic, Tectonophysics, 329, 1-21.
Download as PDF (3.9 Mb)

Rawlinson, N. and Houseman, G. A., 1998. Inversion for interface structure using teleseismic traveltime residuals, Geophys. J. Int., 133, 756-772.
Download as PDF (1.0 Mb)

(2) Technical Reports

Rawlinson, N., 1996. Methods and codes used in seismic tomography, Record 1996/21, Australian Geological Survey Organisation.

Rawlinson, N., 2007. Asthenosphere, McGraw-Hill Encyclopedia of Science and Technology, 269-272.

(3) Conference Abstracts

Rawlinson, N., 2006. Seismic Wavefront Tracking in Heterogeneous Media: Theory and Application, EOS Trans, 87, AGU Fall Meet. Suppl., Abstract S42B-05.
Invited talk

Rawlinson, N., 2006. Tectonic evolution of southeast Australia: Insights from body wave tomography, EOS Trans, 87, AGU Fall Meet. Suppl., Abstract S51C-1279.

Rawlinson, N. and Kennett, B. L. N., 2006. Detailed teleseismic imaging of the crust and upper mantle beneath southeast Australia, Australian Earth Sciences Convention 2006, Melbourne. Geological Society of Australia and Australian Society of Exploration Geophysicists, Abstracts, 116.

Rawlinson, N., de Kool, M. and Sambridge, M., 2006. Seismic wavefront tracking in 3D heterogeneous media, Australian Earth Sciences Convention 2006, Melbourne. Geological Society of Australia and Australian Society of Exploration Geophysicists, Abstracts, 186.

Rawlinson, N. and Kennett, B. L. N., 2005. Detailed teleseismic imaging of transitions in the lithosphere beneath south east Australia using data from multiple seismic arrays, EGU General Assembly, 6, Geophysical Research Abstracts, 03824.

Rawlinson, N., Kennett, B. & Reading, A., 2004. 3-D teleseismic tomography of the crust and upper mantle beneath northern Tasmania, Australia, EOS Trans, 85, AGU Fall Meet. Suppl., Abstract S11E-07.

Sambridge, M. & Rawlinson, N., 2004. Seismic applications of the fast marching method: traveltime prediction in complex layered media and 3-D tomographic imaging, EOS Trans, 85, AGU Fall Meet. Suppl., Abstract S31B-1044.

Rawlinson, N., Reading, A. & Kennett, B., 2004. Three-dimensional structure of the lithosphere beneath northern Tasmania from seismic traveltimes, 17th Australian Geological Convention, Hobart. Geological Society of Australia, Abstracts 73, 113.

Reading, A. & Rawlinson, N., 2004. A deeper look at the terranes of southern Victoria and Tasmania: constraints from the broadband stations of the TIGGER seismic network. 17th Australian Geological Convention, Hobart. Geological Society of Australia, Abstracts 73, 181.

Rawlinson, N. & Sambridge, M., 2003. Accurate multi-phase traveltimes in 2-D layered media using a fast marching scheme with source grid refinement, EOS Trans, 84, AGU Fall Meet. Suppl., Abstract S22G-04.

Rawlinson, N. & Sambridge, M., 2003. Multi-valued traveltime fields and wavefronts in layered media using the Fast Marching Method, EGS-AGU-EUG Joint Assembly, Geophysical Research Abstracts, 5, 2427.

Rawlinson, N. & Sambridge, M., 2002. Wavefront evolution in complex layered media using the Fast Marching Method, EOS Trans, 83, AGU Fall Meet. Suppl., F985.

Rawlinson, N. & Sambridge, M., 2002. Wavefront propagation in layered media using the Fast Marching Method, 27th General Assembly EGS, Geophysical Research Abstracts, 21.

Rawlinson, N. & Houseman, G. A., 1999. Inversion method for determination of 3-D layered crustal structure using wide-angle seismic traveltimes, Fall AGU meeting, EOS Trans, 80, F695.

Houseman, G. A., Rawlinson, N. & Collins, C. D. N., 1999. Inversion of wide-angle seismic traveltimes for 3-D crustal structure of Tasmania, Fall AGU meeting, EOS Trans, 80, F675.

Rawlinson, N., Houseman, G. A. & Collins, C. D. N., 1999. Inversion of wide-angle seismic data for 3-D crustal structure of NW Tasmania, 13th Victorian Universities Earth Sciences Conference, University of of Melbourne, Geological Society of Australia, Abstracts 54, 13.

Rawlinson, N., Semenova, T.0., Collins, C.D.N., Houseman, G.A. & Drummond, B.J., 1999. Crustal Models in northern Tasmania from inversion of wide-angle seismic data. Mid-Cretaceous to Recent Plate Boundary Processes in the Southwest Pacific, Arthur's Pass. Geological Society of
America Abstract Volume.

Rawlinson, N., Semenova, T.O., Houseman, G.A., Collins, C.D.N. & Drummond, B.J., 1999. Crustal models of Northern Tasmania from wide-angle seismic data. Last conference of the Millenium, Halls Gap. Geological Society of Australia, Abstracts 53, 208-210.

Rawlinson, N., Semenova, T.0., Collins, C.D.N., Houseman, G.A. & Drummond, B.J., 1998. Crustal Structure in northern and eastern Tasmania from seismic refraction data. 8th International Symposium on Deep Seismic Profiling of the Continents and their Margins, Barcelona, Abstracts, 68.

Rawlinson, N., Houseman, G.A., Semenova, T.O. & Collins, C.D.N., 1998. Crustal structure beneath northern Tasmania from wide-angle seismic data. 12th Victorian Universities Geosciences Conference, La Trobe University. Geological Society of Australia, Abstracts 52, 33.

Rawlinson, N., Semenova, T.O., Collins, C.D.N. & Houseman, G.A., 1998. Crustal structure beneath the north and east coasts of Tasmania from seismic refraction data. 14th Australian Geological Convention, Townsville. Geological Society of Australia, Abstracts 49, 372.

Collins, C.D.N., Drummond, B.J., Korsch, R.J., Barton, T.J. & Rawlinson, N., 1998. Crustal Architecture of Tasmania from Onshore/OffshoreSeismic Profiling. Mineral systems and the crust-upper mantle of southeast Australia, Australian Geological Survey Organisation, Record 1998/2, 40-43.

Rawlinson, N., Collins, C.D.N., Semenova, T.O., & Houseman, G.A., 1998. Crustal architecture from seismic refraction data along the north and east coasts of Tasmania. Mineral systems and the crust-upper mantle of southeast Australia, Australian Geological Survey Organisation, Record 1998/2, 155-158.

Rawlinson, N., Semenova, T.O., Houseman, G.A. & Collins, C.D.N., 1997. Preliminary Results from the 1995 Seismic Refraction Survey ofTasmania. Geophysics Down Under, Newsletter of the Specialist Group on Solid Earth Geophysics (G.S.A)., No.24, 62-63.

AGU 2012 poster