(Colleagues are asked to bring this to the attention of competent
MSc. students who might be interested in these projects.)
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Position 1: Fully funded PhD studentship in coupled climate and ice sheet modelling
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Project: A preliminary Bayesian calibration of a global coupled ice
and climate model for the last glacial cycle. From LGM onward, glacial
geology and RSL data provide a strong set of constraints which are a
challenge to fit. Conversely, prior to LGM, there are few constraints
on ice sheet evolution aside from global (accurately far-field) sea
level proxies. However there are many more constraints on regional
climate from ice core records, palynology, and marine core
records. This calibration will therefore focus on pre-LGM global ice
sheet and climate evolution relying more on paleoclimate constraints.
This project will also examine the stability of the last glacial cycle
to evaluate which features of the cycle were robust and which are
sensitive to noise in the system (eg from large volcanic events).
The project will rely on a hierarchy of coupled ice and climate models
including the LCice coupled GSM glacial system model and LOVECLIM EMIC
(as detailed in Bahadory and Tarasov, GMD, 2018) as well as version
coupled to Plasim. Depending on student interest and progress, the
project may also include refinement of a Climate Generator: A Bayesian
stochastic emulator of expensive General circulation climate models
for glacial cycle modelling contexts.
Applications are invited from candidates with an interest in climate
system modelling and Earth systems science. Applicants must have
their BSc and/or Masters degree in physics, geophysics, applied
mathematics, or closely related fields. They must be fluent in
English. Applicants must also be interested in working in a
collaborative environment in computationally intensive projects. To
apply, cf details at the end of this notice.
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Position 2: Fully funded PhD studentship ice sheet modelling
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Project: Ice streaming dynamics/controls over last glacial cycle and
Heinrich events. In collaboration with Claude Hillaire-Marcel (UQAM,
Montreal) and Chris Stokes (Durham University), this project will
investigate the dynamical controls on the pattern of ice streaming
over the last glacial cycle for the North American ice complex
including those associated with Heinrich events. The project will
entail comparison of BICICLES and 3D Glacial Systems Model (GSM) runs
to examine the impact of adaptive mesh refinement and higher order ice
physics on modelled ice sheet evolution and ice streaming. Building on
the work of LeMorzadec and Tarasov (2015), these comparisons will be
used to develop parametric corrections to the GSM to partially
compensate for its lower order ice physics and more limited ice sheet
model resolution. The role of sub-glacial hydrology (including
stochastic components) in ice streaming will also be quantified.
Building on the above, the student will also collaborate with other
members of the glacial dynamics group in examining the coupled ice and
climate interactions underlying millennial to centennial scale
variability such as Dansgaard-Oeschger (D/O) and Heinrich events.
Applications are invited from candidates with an interest in modelling
ice sheets and Earth Systems science. Applicants must have their BSc
and/or Masters degree in physics, geophysics, applied mathematics, or
closely related fields.They must be fluent in English. Applicants must
also be interested in working in a collaborative environment in
computationally intensive projects.
##################
To apply for either position:
##################
Required skills:
-Some experience in coding in F90 (or F95) or C, and analysis
packages such as OCTAVE/MATLAB, R, CDO, ...
-Knowledge of general physics and some exposure to fluid dynamics or
continuum mechanics (even better with understanding of geophysical
fluid dynamics and/or atmospheric or ocean physics or glaciology)
-Fluency in relevant maths (linear/matrix algebra, partial
differential equations, and vector calculus)
-Familiarity with Linux
The group has a dedicated 920 core cluster and access to further
computational resources through Compute Canada.
Associated benefit: the spectacular natural environment of
Newfoundland, Canada
Start date: Sept 1/19
Details of graduate studies in Physics and Physical Oceanography at
Memorial University can be found at
http://www.mun.ca/physics/graduate_students/
Interested students should contact:
Lev Tarasov
Department of Physics and Physical Oceanography
Memorial University of Newfoundland
St. John's, NL A1B 3X7
lev@mun.ca
http://www.physics.mun.ca/~lev/
include the following:
1. A cover letter including your name, academic status and contact
details, as well as the names and contact details of two
faculty advisers from whom confidential letters may be sought.
2. A statement of interest including long-term academic plans, research
interests,...
3. A short resume/CV, including a list of courses taken, and grades.
4. A self evaluation of strong and weak research skills, skills you
particularly want to develop, and likes and dislikes associated with
research and modelling.
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