Martin Pratt

 
 

I’ve recently defended my PhD at Wash U studying seismology. Having arrived at seismology via a geology background I have a diverse and somewhat broadminded view on the subject. This is reflected in my broad range of investigations into glacial seismology, ocean-based microseismic noise, as well as more conventional Earth imaging using seismic waves.


More recently I’ve tried using Google Earth as a way to quickly visualize crustal and mantle structure, something Google Earth is not designed to do! However, the ease of use of such an intuitive platform provides a potentially useful application to display various spatial and temporal data from all aspects of geoscience. There is also a hope that some of these models can be brought into the real world using 3D printing... a work in progress!


Above are links to my various research topics and interests...


!!!NEW!!! I’m writing a blog for the upcoming Antarctic field season. Find it here !!!NEW!!!



Seismic Fieldwork Experience:


   January 2011: Antarctica

Removing temporary seismic and GPS stations on the Whillans Ice Stream

    November 2011–January 2012: Antarctica

Deploying seismic and GPS stations on the Whillans Ice Stream and conducting a 10km active source experiment

    July 2012–August 2012: Madagascar

Deploying seismic stations as part of the Macomo experiment

    April 2013 & October 2013: Minnesota/Wisconsin

Helped service and decommission seismic stations as part of the SPREE Flexible Array experiment

    August 2013–September 2013: Cascadia

Deploying ocean bottom seismic stations as part of the Cascadia Initiative experiment

   October 2016–November 2016: Antarctica

Recovering seismic and GPS stations on the Ross Ice Shelf


Academic institutes and qualifications:


    2004–2007: BSc (Hons) Geology, University of Durham, UK

Dissertation: The geological history of the sediments of the Khrokitia area, Cyprus

    2008–2009: MRes Physics of the Earth and Atmosphere, University of Leeds, UK

Dissertation: Total variation regularised deconvolution of depth phases applied to shallow earthquakes triggered during the 2005 Dabbahu volcano-seismic crisis

    2010–2012: AM Geophysics, Washington University in St. Louis, USA

Research Project: Seismic observations and implications for the stick–slip motion rupture mechanics of the Whillans Ice Stream, West Antarctica

    2012–2016 : PhD, Washington University in St. Louis, USA

Thesis title: Seismic array studies of Antarctica and Madagascar


Academic conference presentations and invited talks:


    2011: ISAES, Edinburgh, UK (poster)

Slip characteristics of the Whillans Ice Stream, West Antarctica constrained by local and POLENET seismic data

    2012: SCAR, Portland, OR (poster)

Rupture characteristics of slip events from the Whillans Ice Stream, West Antarctica: analysis from near-field and far-field seismic signals

   2012: AGU, San Francisco, CA (poster)

Source characteristics of a West Antarctic ice stream

    2013: Lamont Doherty Earth Observatory, NY (invited talk)

Stick–slip motion of the Whillans Ice Stream, West Antarctica

    2013: AGU, San Francisco (invited talk)

Grounding line control of rupture initiation and propagation during Whillans Ice Stream slip events

    2013: AGU, San Francisco (poster)

Receiver function analysis and preliminary body wave tomography of the MACOMO network in Madagascar

    2014: Student Seismology Workshop, Lamont Doherty Earth Observatory, NY (talk)

Relating source theory to seismic signals from direct observations

    2014: AGU, San Francisco (poster)

Combined teleseismic surface wave and receiver function analysis of the crust and upper mantle of Madagascar

    2015: Student Seismology Workshop, Lamont Doherty Earth Observatory, NY (talk)

Exploring the crust and upper mantle of Madagascar

    2015: AGU, San Francisco (talk)

Ocean based noise sources recorded by a moderate aperture array in Antarctica

    2015: AGU, San Francisco (poster)

Teleseismic body wave analysis of the Madagascan asthenosphere and the relationship to intraplate volcanism

    2016: JpGU, Tokyo, Japan (talk)

Array detection of Southern Ocean microseisms: The effect of sea ice and Southern Ocean storms

    2017: AGU, San Francisco (poster)

Constraints on the variable subglacial structure of Whillans Ice Stream from ambient noise Rayleigh wave H/V ratios


Published papers and awards:


2008 NERC Masters funding award

2015 Washington University EPS Departmental Dissertation Fellowship


Pratt M.J., J.P. Winberry, D.A. Wiens, S. Anandakrishnan, R.B. Alley (2014) Seismic and geodetic evidence for grounding line control of Whillans Ice Stream stick–slip events. J. Geophys. Res., DOI: 10.1002/2013JF002849

  

J.P. Winberry, S. Anandakrishnan, R.B. Alley, D.A. Wiens, M.J. Pratt (2014) Tidal pacing, skipped slips, and the slow-down of the Whillans Ice Stream, Antarctica. J. Glac., DOI: 10.3189/2014JoG14J038


Pratt M.J., M.E. Wysession, D.A. Wiens, A.A. Nyblade, and others (2017) Shear velocity structure of the crust and upper mantle of Madagascar derived from surface wave tomography. Earth Planet. Sci. Lett. 458, 405–417 http://dx.doi.org/10.1016/j.epsl.2016.10.041


Pratt M.J., D.A. Wiens, J.P. Winberry, S. Anandakrishnan, G.A. Euler (in press) Microseism analysis and Southern Ocean storm tracking using a seismic array in West Antarctica. Geophys. J. Int.


Contact:

   http://eps.wustl.edu/people/martin-pratt


CV:

   Martin Pratt - CV.pdf

Research scientist - Washington University in St. Louis