Dr Tom Bradwell

Dr Tom Bradwell

Quaternary Geologist

Location: Edinburgh

Tel: 0131 6500 284

E-mail Dr Tom Bradwell

Biography

  •  2012 – ongoing : BGS-PI, Britice-Chrono: NERC Consortium Grant
  •  2010 – ongoing : Senior Research Scientist
  •  2008 –2010 : Team Leader, Quaternary Earth Systems
  •  2006 –2011 : Project Leader, British Ice Sheet Project
  •  2001 : Geologist (Quaternary), BGS, Edinburgh
  •  2001 : PDRA on BRITICE project (glacial map and database of GB)
  •  2001 : PhD, University of Edinburgh (supervised by Profs David Sugden & Andrew Dugmore)
  •  1997 : BSc, First Class, University of Liverpool (Geology & Physical Geography)

Boards and committees

  •  2013 – ongoing : Editorial board: Geografiska Annaler (Physical Geography, Series A)
  •  2009 –2011 : Co-ordinator of 11th International Symposium on Antarctic Earth Sciences, Edinburgh, 2011

Research interests

  • Glacial geomorphology  (on- and offshore)
  • Glacial processes and products
  • Ice sheet dynamics
  • Landscape evolution
  • Palaeoclimatology
  • Sea level change
  • Surface exposure dating (esp. Lichenometry)

Current projects and collaboration

  • Britice-Chrono - Transect leader: 5-yr NERC Consortium Grant investigating the pattern and timing of marine-influenced ice sheet decay
  • Glacial history and landscape evolution of the Outer Hebrides (with Adrian Hall (Stockholm) and Maarten Krabbendam)
  • Glacial history and seabed geomorphology of the Inner Hebrides (with John Howe (SAMS) and Dayton Dove)
  • High-resolution sediment record of fjords, NW Scotland (with Jenny Gales & Martyn Stoker)
  • Impacts of glaciation on Carbon Capture & Storage sites (with Stuart Hazseldine (University of Edinburgh) and the GlaciStore (IODP proposal) team)
  • Lateglacial sea levels, ice sheet thickness and GIA modelling of Scotland (with University of Durham and PALSEA2 members)
  • Lichen growth rate studies and lichen dating applications (with R A Armstrong, Aston University)
  • MAREMAP project: marine Quaternary geological mapping (focusing on the Summer Isles, The Minch and NW UK Continental Shelf)
  • Virkisjokull Glacier Observatory project, Iceland (with Jez Everest, Emrys Phillips, Andrew Finlayson, etc)
  • Supervision of BGS PhD student (Andrew Finlayson) University of Edinburgh (2009-2014)
  • Supervision of NERC PhD student (Hannah Mathers) University of Glasgow (2007-2014)
  • Supervision of NERC PhD student (Helena Stewart) University of Stirling (2012- )
  • Detecting recent ice-cap change using repeat airborne LiDAR surveys of Icelandic ice caps (NERC-ARSF grant) (with IMO & University of Iceland)

Professional association

  • Fellow of Geological Society of London
  • Member of British Society for Geomorphology
  • Member of European Geosciences Union
  • Member of International Glaciological Society
  • Member of Quaternary Research Association

Awards

  •  2009 : Lewis Penny Medal: awarded by the Quaternary Research Association

Published outputs

Key papers

PHILLPS, E.R., FINLAYSON, A.G., BRADWELL, T., EVEREST, J.D., JONES, L. 2014. Structural evolution triggers a dynamic reduction in active glacier length during rapid retreat: evidence from Falljökull, SE Iceland. Journal of Geophysical Research: Earth Surface, DOI:10.1002/2014JF003165

BRADWELL, T., STOKER, M.S. 2014. Detailed ice-sheet retreat pattern around Northern Scotland revealed by marine geophysical surveys. Earth and Environmental Science, Transactions of the Royal Society of Edinburgh, 105: in press.

FINLAYSON, A.G., FABEL, D., BRADWELL, T., SUGDEN, D.E. 2014. Growth and decay of a marine-terminating sector of the last British-Irish Ice Sheet: a geomorphological reconstruction.Quaternary Science Reviews, 83: 28-45. DOI:10.1016/j.quascirev.2013.10.009

KRABBENDAM, M., BRADWELL, T. 2014. Quaternary evolution of glaciated gneiss terrains: pre glacial weathering vs. glacial erosion. Quaternary Science Reviews, 95: 20-42. DOI:10.1016/j.quascirev.2014.03.013

BRADWELL, T. 2013. Identifying palaeo-ice-stream tributaries on hard beds: mapping glacial bedforms and erosion zones in NW Scotland. Geomorphology, 201: 397-414. DOI: 10.1016/j.geomorph. 2013.07.014

BRADWELL, T. SIGURDSSON, O., EVEREST, J.D. 2013. Recent, very rapid retreat of a temperate glacier in SE Iceland. Boreas, 42: 959-973. DOI:10.1111/bor.12014

EVEREST, J.D., BRADWELL, T., STOKER, M.S., DEWEY, S. 2013. New age constraints for the maximum extent of the last British-Irish Ice Sheet (NW Sector). Journal of Quaternary Science, 28: 2-7. DOI:10.1002/jqs.2605

MILLER, H., COTTERILL, C.J., BRADWELL, T. 2013. Glacial and paraglacial history of the Troutbeck valley, Cumbria, UK: integrating airborne LiDAR, multibeam bathymetry, and geological field mapping. Proceedings of the Geologists’ Association, 125: 31-40. DOI: 10.1016/jpgeola.2013.04.007

PATTON, H., HUBBARD, A., BRADWELL, T., GLASSER, N.F., HAMBREY, M., CLARK, C.D. 2013. Rapid marine deglaciation: asynchronous retreat dynamics between the Irish Sea Ice Stream and terrestrial outlet glaciers. ESurfD. DOI:10.5194/esurfd-1-277-2013

HOWE, J., DOVE, D., BRADWELL, T., GAFEIRA, J. 2012. Submarine geomorphology and glacial history of the Sea of the Hebrides, Scotland. Marine Geology, 315-318: 64-76.

PATTON, H., HUBBARD, A., GLASSER, N.F., BRADWELL, T., GOLLEDGE N.R. 2012. The last Welsh Ice Cap – Part 1: Modelling its evolution, sensitivity and associated climate. Boreas. 42: 471-490. DOI: 10.1111/j.1502-3885.2012.00300.x.

PATTON, H., HUBBARD, A., GLASSER, N.F., BRADWELL, T., GOLLEDGE N.R. 2012. The last Welsh Ice Cap – Part 2: Dynamics of a topographically controlled ice cap. Boreas. 42: 471-490.

ARMSTRONG, R.A., BRADWELL, T. 2011. The growth of foliose lichens: a review. Symbiosis, 53: 1-16.

FINLAYSON, A.G., GOLLEDGE, N.R., BRADWELL, T., FABEL, D. 2011. Evolution of a Lateglacial mountain ice cap in Northern Scotland. Boreas, 40: 536-554.

GRAHAM, A., LONERGAN, L., STOKER, M., BRADWELL, T., STEWART, M. 2011. The Pleistocene glaciations of the North Sea Basin. Developments in Quaternary Science, 15: 261-278.

KRABBENDAM, M., BRADWELL, T. 2011. Lateral plucking as a mechanism for elongate erosional bedforms: explaining megagrooves in Britain and Canada. Earth Surface Processes and Landforms, 36: 1335-1349.

McINTYRE, K.I., HOWE, J.A., BRADWELL, T. 2011. Lateglacial ice-sheet extent and deglaciation in Loch Hourn, western Scotland. Scottish Journal of Geology 47: 169-178.

ARMSTRONG, R.A., BRADWELL, T. 2010. Growth rates of crustose lichens: a review. Geografiska Annaler, 92A: 3-18.

BRADWELL, T. 2010. Studies on the growth of Rhizocarpon geographicum in NW Scotland, and some implications for lichenometry. Geografiska Annaler, 92A: 41-52.

GOLLEDGE, N.R., HUBBARD, A.H., BRADWELL, T. 2010. Influence of seasonality on glacier mass balance, and implications for palaeoclimate reconstructions. Climate Dynamics, 35: 757-770.

LUKAS, S., BRADWELL, T. 2010. Reconstruction of a Lateglacial (Younger Dryas) mountain icefield, in Sutherland, NW Scotland, and its palaeoclimatic implications. Journal of Quaternary Science, 25: 567-580.

BRADWELL, T. 2009. Lichenometric dating: a commentary, in the light of some recent statistical studies. Geografiska Annaler, 91A: 61-69.

HUBBARD, A.L., BRADWELL, T., GOLLEDGE, N. R., HALL, A., PATTON, H., SUGDEN, D.E., COOPER, R.M., STOKER, M.S. 2009. Dynamic cycles, ice streams and their impact on the extent, chronology and deglaciation of the last British-Irish Ice Sheet. Quaternary Science Reviews, Vol 28: 759-777.

STOKER, M.S., BRADWELL, T. 2009. Neotectonic deformation in a Scottish Fjord, Loch Broom, NW Scotland. Scottish Journal of Geology,, 45: 107-116.

STOKER, M.S., BRADWELL, T., HOWE, J.A. WILKINSON, I.M., McINTYRE, K. 2009. Lateglacial ice cap dynamics in NW Scotland: evidence from the fjords. Quaternary Science Reviews, 28: 3161-3184.

BRADWELL, T, FABEL, D, STOKER, M S, MATHERS, H E, McHARGUE, L, HOWE, J. 2008. Ice caps existed throughout the Lateglacial Interstadial in northern Scotland. Journal of Quaternary Science, Vol. 23, 401-407.

BRADWELL, T, STOKER, M S, GOLLEDGE, N R, WILSON, C K, MERRITT, J W, LONG, D, EVEREST, J D, HESTVIK, O B, STEVENSON, A G, HUBBARD, A L, FINLAYSON, A G, MATHERS, H E. 2008. The northern sector of the last British Ice Sheet: maximum extent and demise. Earth-Science Reviews, Vol. 88, 207-226.

BRADWELL, T., STOKER, M.S., KRABBENDAM, K. 2008. Megagrooves and streamlined bedrock in NW Scotland: the role of ice streams in landscape evolution. Geomorphology, 97: 135-156.

FINLAYSON, A.G., BRADWELL, T. 2008. Morphological characteristics and glaciological significance of Rogen moraine in Northern Scotland. Geomorphology, 101: 607-617.

BRADWELL, T, ARMSTRONG, R A. 2007. Growth rates of Rhizocarpon geographicum: a review with new data from Iceland. Journal of Quaternary Science, Vol. 22, 311-320.

BRADWELL, T, STOKER, M S, LARTER, R D. 2007. Geomorphological signature and flow dynamics of The Minch palaeo-ice stream, NW Scotland. Journal of Quaternary Science, Vol. 22, 609-617.

BRADWELL, T., DUGMORE, A.J., SUGDEN, D.E. 2006. The Little Ice Age glacier maximum in Iceland and the North Atlantic Oscillation: evidence from Lambatungnajökull, southeast Iceland. Boreas, 35: 61-80.

STOKER, M.S., BRADWELL, T., WILSON, C.K., HARPER, C., SMITH, D., BRETT, C. 2006. Pristine fjord landsystem revealed on the seabed in the Summer Isles region, NW Scotland. Scottish Journal of Geology, 42: 89-99.

BRADWELL, T. 2005. Bedrock megagrooves in Assynt, NW Scotland. Geomorphology, 65: 195-204.

EVEREST, J.D., BRADWELL, T., GOLLEDGE, N.R. 2005. Subglacial landforms of the Tweed Palaeo-Ice Stream. Scottish Geographical Journal, 121: 163-173.

STOKER, M.S., BRADWELL, T. 2005. The Minch palaeo-ice stream, NW sector of the British–Irish Ice Sheet. Journal of the Geological Society, 162: 425-428.

BRADWELL, T. 2004. Annual moraines and summer temperatures at Lambatungnajökull, Iceland. Arctic, Antarctic, and Alpine Research, 36: 502-508.

BRADWELL, T. 2004. Lichenometric dating in southeast Iceland: the size-frequency approach. Geografiska Annaler, 86A: 31-41.

CLARK, C.D., EVANS, D.J.A., KHATWA, A., BRADWELL, T., JORDAN, C.J., MARSH, S.H., MITCHELL, W.A., BATEMAN, M.D. 2004. Map and GIS database of landforms and features related to the last British Ice Sheet. Boreas, 33: 359-375.

EVEREST, J.D., BRADWELL, T. 2003. Buried glacier ice in southern Iceland and its wider significance. Geomorphology, 52: 347-358

BRADWELL, T. 2001. A new lichenometric dating curve for southeast Iceland, Geografiska Annaler, 83A: 91-101.