Geography and Environment School of Geosciences University of Aberdeen St. Mary's Elphinstone Road Aberdeen AB24 3UF Scotland
- 2018-present: Professor, Geography and Environment, School of Geosciences, University of Aberdeen.
- 2015-2018: Reader, Geography and Environment, School of Geosciences, University of Aberdeen.
- 2009-2015: Senior Lecturer, Geography and Environment, School of Geosciences, University of Aberdeen.
- 2004-2009: Lecturer, Geography and Environment, School of Geosciences, University of Aberdeen.
- 2003-2004: Petrophysics Staff Scientist, Integrated Ocean Drilling Programme (IODP), Department of Geology University of Leicester.
- 2001-2003: Logging Staff Scientist, Ocean Drilling Programme (ODP), Department of Geology University of Leicester.
- 1998-2001: Research Associate, Department of Earth Sciences, Cardiff University.
- 1995-1998: Research Fellow, School of Geosciences, Queen’s University Belfast.
- 1994-1995: Teaching Assistant, School of Geosciences, Queen’s University Belfast.
- 1990-1994: PhD. Plucking and abrasion beneath temperate plateau icefields. School of Geosciences, Queen’s University Belfast.
- 1987-1990: B.Sc. (Hons) Geography. School of Geosciences, Queen’s University Belfast.
- 2016 – present, Chair of the Executive Committee of SAGES
- 2015 – present, Editorial Board of Geografia Fisica e Dinamica Quaternaria
- 2014 – present, Executive Committee member of SAGES (Scottish Alliance for Geoscience, Environment and Society)
- 2014 – present, NERC Panels A and B Core Member
- 2014 – present, Carnegie Trust for the Universities of Scotland, invited assessor and selection committee member
- 2014 – present, Editorial Board of arktos, Journal of Arctic Geoscience Research.
- 2010 – present, NERC Peer Review College member
- Glacial and periglacial geomorphology/geology
- Glacial tectonics
- Glacier-climate interactions and reconstruction
- Ocean-atmosphere-cryosphere dynamics in region of the North Atlantic
- Centrifuge modelling of earth surface processes
- Basal ice rheology, chemistry, sliding and erosion
- High-latitude -altitude weathering processes and rates
- Long-term landscape evolution in passive glaciated mid- and high-latitude margins
I am currently accepting PhDs in Geography and Environment.
Please get in touch if you would like to discuss your research ideas further.
- Glaciology and Cryospheric Systems
- Quaternary Studies
- Earth Sciences
- Climate Science
Our research specialisms are based on the Higher Education Classification of Subjects (HECoS) which is HESA open data, published under the Creative Commons Attribution 4.0 International licence.
This work has evolved from a long established interest in surging glaciers, their dynamics, geomorphic signature and identification in the palaeo-landform record. A recent publication applied a Linear Elastic Fracture Mechanics (LEFM) analysis to crevassing on surging glaciers. This found that Mode 1 (open perpendicular to the principal tensile stress) extensional crevasses, which form a component of crevasse-squeeze ridge networks found in association with extant surging glaciers are most likely to have originated as full-depth bottom-up basal crevasses.
Analogue modelling of crevassing is currently in progress using a geotechnical beam centrifuge located in the University of Dundee. Self weight stresses and stress gradients, key to the formation and penetration of crevasses, can be replicated using a centrifuge and will allow current theories on glacier and ice sheet crevassing to be tested.
This project is funded by a NERC Small Grant.
Greenland Ice Sheet
To date work has focused on the Uummannaq region. Over four field seasons horizontal and vertical transects have been ground-truthed and sampled for terrestrial cosmogenic nuclide (TCN) exposure analyses in order to establish the Last Glacial Maximum (LGM) and subsequent retreat geometries and chronologies. A further component of this work is the investigation of the longterm landscape evolution utilising a suite of analytical and modelling techniques. Ultimately, it will focus on determining the complex feedbacks between landscape and ice dynamics as this landscape of selective linear erosion evolved.
Shorter term millennial scale dynamics are also under investigation at Kangiata Nunata Sermia. This calving ice margin has retreated ~20km from its Little Ice Age maximum limit. Quirks of drainage migration, a suite and glacial geomorphology and the presence of Viking settlements all provide the opportunity to constrain the advance and retreat history. These data are being used to constrain/tune a numerical flow-band glacier calving model and this work forms focus of James Lea’s PhD.
These projects have received funding from a number of sources including NERC, The Carnegie Trust and University contributions.
Glacier-climate interactions and reconstructions
Currently this research has a number of foci. The reconstruction of palaeo-glaciers using geomorphological and chronological data to constrain numerical reconstructions has been a longstanding interest. From these reconstructions empirical relationships provide the opportunity to constrain quantitative estimates of palaeo-climate, specifically palaeo-precipitation. Work in this area is currently ongoing in SW Scotland in the Tweedsmuir Hills as the focus of Danni Pearce’s PhD.
A further development of this approach is looking at the reconstruction of small niche glaciers, in areas marginal for glacierization, where radiation shading and headwall avalanching play significant role in mass balance.
Multiple palaeo-glacier reconstructions provide the opportunity to develop regional-scale palaeo-climates which may elucidate the location and intensity of major atmospheric circulation components e.g. the Polar Frontal Jet Stream and track of mid-latitude depressions. Empirical data sets recording North Atlantic Ocean energy flux and glacier mass balance have been shown to be linked (Marie Porter’s PhD). It is hoped to develop this further to link palaeoceangraphic, palaeo-glacier and palaeo-atmospheric circulations for climate perturbations e.g. the Little Ice Age and Younger Dryas under the University funded “Fragility, Adaptation and Resilience to Climate Change in the North” programme under “The North” research theme.
This resarch area has expanded further recently into an investigation "Using glacier-climate proxies to model the Younger Dryas climate in Europe". This work is funded by a Leverhulme Trust Internatonal Network Grant. It aims to improve our understanding the coupled ocean-atmosphere-cryosphere-climate system in response North Atlantic Ocean forcing. The focus is on the North Atlantic freshening event which occurred during the Younger Dryas period, ~12.9-11.7 ka BP. This Network will investigate the timing and magnitude of the climate response to the ocean focing using palaeo-glacier derived climate proxy data. The International Network comprises glaciologists, geochronologists and climate modellers from seven European Institutions.
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Holocene history of 79°N ice shelf reconstructed from epishelf lake and uplifted glacimarine sedimentsThe CryosphereContributions to Journals: Articles
- [ONLINE] DOI: https://doi.org/10.5194/tc-2022-173
Geomorphological record of a former ice stream to ice shelf lateral transition zone in Northeast GreenlandEarth Surface Processes and LandformsContributions to Journals: Articles
- [ONLINE] DOI: https://doi.org/10.1002/esp.5552
Glaciers have existed on Earth for at least 60 million years – far longer than previously thoughtThe ConversationContributions to Specialist Publications: Articles
60 million years of glaciation in the Transantarctic MountainsNature Communications, vol. 13, 5526Contributions to Journals: Articles
Multitemporal glacier inventory revealing four decades of glacier changes in the Ladakh regionEarth System Science Data, vol. 14, no. 9, pp. 4171–4185Contributions to Journals: Articles
Controls on the altitude of Scandinavian cirques: what do they tell us about palaeoclimate?Palaeogeography Palaeoclimatology Palaeoecology, vol. 600, 111062Contributions to Journals: Articles
- [ONLINE] DOI: https://doi.org/10.1016/j.palaeo.2022.111062
Deep-water sedimentation processes on a glaciated margin: the Foula Wedge trough mouth fan, West of Shetland.Marine Geology, vol. 446, 106769Contributions to Journals: Articles
Testing the Area-Altitude Balance Ratio (AABR) and Accumulation Area Ratio (AAR) methods of calculating glacier equilibrium-line altitudesJournal of Glaciology, vol. 68, no. 268, pp. 357-368Contributions to Journals: Articles
Millimetre-wave radar observations of glacier calving at Hansbreen (Svalbard) correlated with TLS, time-lapse camera images and seismic records.Other Contributions: Other Contributions
- [ONLINE] DOI: https://doi.org/10.5194/egusphere-egu22-143
Greenland tidewater glacier advanced rapidly during era of Norse SettlementGeology, vol. 50, no. 6, pp. 704–709Contributions to Journals: Articles