Research School of Earth Sciences
Earth Physics - Dr. N. Rawlinson
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Nick RawlinsonPosition: Senior Fellow Research School of Earth Sciences, Australian
National University
Canberra, ACT 0200, AUSTRALIA tel: +61-2-6125 5512
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 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. 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.
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 Fellow
ARC Research Fellow
Fellow
Awards/Scholarships Leo Gleeson Prize in Mathematics
(1996)
Research Grants
Australian Research Council Discovery project DP0451133
Australian Research Council Discovery project DP0556282
Australian Research Council Discovery project DP0770131
Australian Research Council Discovery project DP0986750
Australian Research Council Linkage project LP0990266
Australian Research Council Linkage project LP110100256
EIF round 3
Australian Research Council Discovery project DP120103673
Australian Research Council Discovery project DP120102372
Australian Research Council LIEF project LE120100061
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.
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.
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.
Bodin, T., Sambridge, M., Rawlinson, N., Arroucau, P. and Rawlinson,
N. 2012.
Transdimensional tomography with unknown data noise.
Geophysical Journal International, 189, 1536-1556.
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.
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.
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.
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.
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.
Rawlinson, N., Sambridge, M. and Hauser, J. 2010. Multipathing, reciprocal traveltime fields and
raylets.
Geophys. J. Int. 181, 1077-1092.
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.
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.
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.
Rawlinson, N., Pozgay, S. and Fishwick, S. 2010. Seismic tomography: A window into deep Earth.
Phys. Earth Planet. Inter. 178, 101-135.
Schellart, W. P. and Rawlinson, N. 2010. Convergent plate margin dynamics: New perspectives from
structural geology, geophysics and geodynamic modelling.
Tectonophysics 483, 4-19.
Schellart, W. P. and Rawlinson, N. 2010. Introduction to the special issue on convergent plate
margin dynamics.
Tectonophysics 483, 1-3.
Hauser, J., M. Sambridge, and N. Rawlinson,
2008. Multiarrival wavefront tracking and its applications.
Geochem. Geophys. Geosyst. 9, doi:10.1029/2008GC002069
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.
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.
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.
Sambridge, M., Rickwood, P., Rawlinson, N. and Sommacal,
S., 2007. Automatic Differentiation in geophysical inverse problems.
Geophys. J. Int., 170, 1-8.
Rawlinson, N., Hauser, J. and Sambridge, M., 2007.
Seismic ray tracing and wavefront tracking in laterally heterogeneous media.
Advances in Geophysics, 49. 203-267.
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.
Hauser, J., Sambridge, M. and Rawlinson, N. 2006.
Phase space methods for multi arrival wavefronts.
Explor. Geophys., 37, 331-339.
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.
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.
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.
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.
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.
Sambridge, M. and Rawlinson, N., 2005.
Seismic tomography with irregular meshes,
Geophysical Monograph Series, 157, 49-65.
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.
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.
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.
Rawlinson, N. and Sambridge, M., 2004.
Wavefront evolution in strongly heterogeneous layered media using the
fast marching method,
Geophys. J. Int., 156, 631-647.
Rawlinson, N. and Sambridge, M., 2003.
Irregular interface parameterization in 3-D wide-angle seismic traveltime
tomography,
Geophys. J. Int., 155, 79-92.
Rawlinson, N. and Sambridge, M., 2003.
Seismic traveltime tomography of the crust and lithosphere,
Advances in Geophysics, 46, 81-198.
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.
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.
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.
Rawlinson, N. and Houseman, G. A., 1998. Inversion
for interface structure using teleseismic traveltime residuals, Geophys.
J. Int., 133, 756-772.
(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.
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
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.
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Page last updated: 2004 December 21 Please direct all enquiries to: nick@rses.anu.edu.au Page authorised by: Coordinator, Earth Physics, RSES |
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