[Tectonos] Fwd: PhD scholarships in Geophysics at Victoria University of Wellington-July 1 deadline

[Patricia Alvarado]

>>>>The Institute of Geophysics, Victoria University of Wellington, New Zealand announces PhD scholarship opportunities at our university.

We have several seismological projects of interest for which we would
like to guide a PhD student:

1)      Subduction zone structure. We are in the early stages of an
international  collaborative project involving investigators from New
Zealand, Japan and the United States to study the subduction  zone
structure under the Wellington region, North Island, New Zealand.  The
aim is to determine the material properties of interfaces (especially
the subduction interface) at various depths, to try to understand the
properties in a locked subduction zone.  This project will combine
active onshore-offshore seismic experiments (explosions and airgun
sources) with passive (earthquake) recordings using short period and
broadband recorders. We have data for up to two students to work on
this project.

2)  Evolution of seismicity and stress in the region of the magnitude
7.2 Darfield, New Zealand and the Christchurch aftershock.  We have a
wealth of data from 15 broadband stations that collected aftershocks
of the Darfield earthquake.  With the addition of permanent stations,
we will work with international collaborators from the U.S. to
determine the stress evolution in the area and its relation to seismic
properties such as velocity and attenuation.

3)      Fault zone structure and microseismicity.  Studies of the
Alpine Fault in the South Island are continuing, with recent success
in funding for a project that will drill a 1 km deep borehole to study
fault zone properties and their change with depth of exhumation. Two
shallow holes to 150 m have been drilled, cored and logged and are
instrumented with seismometers.

4)   We also have installed a 10 station network of borehole
seismographs over the central section of the Alpine Fault with the
plan to locate and map hypocentres  of events with magnitudes as small
as 0 or -1. We propose a PhD study linked to at least two data streams
from the array: i.    using the array to study special seismic waves
that are linked to fault  and collisional zones; ii/  A study of
induced seismicity and tomography linked to data from the the
Fiordland 2009 and Darfield, 2010 earthquakes.
5)    Statistics of seismic noise.  Increasingly larger data sets are
being collected to study earth structure, and the use of seismic noise
as a source of energy to study earth structure is becoming
commonplace, yet relatively crude methods of determining the error
bars in measurements are being used.  With some types of measurements,
the variation between measurements is much larger than expected by the
standard noise calculations.  Understanding the variations is
imperative to be sure whether or not they can be attributed to earth
property variations. Seismologists and statisticians are collaborating
to understand the source of seismic noise and to obtain better
estimates of earth properties.



If you are interested in any of these projects, please contact Martha
Savage and also apply to the Victoria University of Wellington,
following instructions at
http://www.victoria.ac.nz/fgr/prospective-phds/applying.aspx.  The
application deadline is 1 July 2011 and the application is free of
charge.  Successful scholarship students from any country will receive
a NZ$21,000 stipend and will not have to pay tuition fees.  Further
details including grant proposals are available upon request to
Professor Martha Savage,
martha.savage en vuw.ac.nz<mailto:martha.savage en vuw.ac.nz>.



Martha Savage
Professor of Geophysics
SGEES
Victoria University of Wellington
Te Whare Wananga o te Upoko o te Ika a Maui
Cotton 522
Box 600, Wellington, 6140
New Zealand

Martha.Savage en vuw.ac.nz

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