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- E-mail: kah55@cam.ac.uk
- Tel: 01223 336570
- Address:
Scott Polar Research Institute
University of Cambridge
Lensfield Road
Cambridge
CB2 1ER
UK
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Dr. Kelly A. Hogan, B.A., M.Sc., Ph.D.
Post-doctoral Research Associate
Geologist using geophysical and geological records of the seafloor to study the past configuration and behaviour of large ice sheets, during ice-sheet growth and decay.
Career
- Project Geoscientist, Hydrosearch Associates, Woking, Surrey, U.K. 2001-2002.
- Scientific Assistant, Woods Hole Group, East Falmouth, MA, U.S.A. 2002-2004.
- Post-doctoral Reseach Associate, Scott Polar Research Institute. 2008-present.
Biography
Qualifications
- B.A. (Earth Sciences) Oxford University, Oxon., UK. 2000.
- M.Sc. (Oceanography) University of Southampton, National Oceanography Centre, Southampton, UK. 2001.
- Ph.D. Jesus College, Cambridge University. 2004-2008.
Research
Kelly's research focuses on the geomorphic signature and sedimentary architecture of high-latitude continental margins that have been influenced by glacial processes. When the ice overrides the continental shelf and shelf break during full-glacial periods a high-resolution record of the glaciation is produced in the sediments that are deposited (now submarine). This record (geometry, scale, architecture of sedimentary bodies) can then be used to determine information regarding how the ice sheet advanced, whether the ice was moving quickly or was frozen to its bed and how the ice sheets finally retreated.
Past research
Kelly's PhD considered the sedimentary signature of glaciation in the high-latitude Barents Sea (water depth < 500m), east of Svalbard. The result of this work was a comprehensive interpretation of high-resolution geophysical and geological records to determine ice-sheet flow during the LGM. Prior to this research, relatively little was known about the detailed configuration of the Eurasian Ice Sheet in this area, largely because marine surveying has been hampered by persistant sea ice cover.
In addition, she used the fact that the form of modern high-latitude continental shelves is relatively well known, as are the extent and characteristics of ice sheets during the Last Glacial Maximum (20 000 years ago), to provide modern analogues for a paleo-continental margin in North Africa. A 3D seismic survey from south-west Libya was analysed and depositional processes characterised for a short-lived (<1Myr) Late Ordovician glaciation.
This project was part of the NERC Ocean Margins LINK initiative.
Current research
Kelly's current research at SPRI builds on the expertise gained during her PhD and first post-doctoral project. The project that she is currently working on is investigating the record of glaciation in several locations in the Arctic and Antarctic with particualr interest in the West Antarctic Ice Sheet (WAIS). Specifically, she is looking at the backscatter response of glacially-scuplted seafloor and sediment types in Pine Island Bay, the record of subglacial meltwater flow in Margeurite Bay and the sedimentary record in front of Jakobshavn Isbrae, West Greenland.
This project is funded by the Prince Albert of Monaco II Foundation and is in collaboration with colleagues at Stockholm and Durham Universities.
Publications
2012
- Hogan, K.A., Dowdeswell, J.A., and Ó Cofaigh, C. (2012). Glacimarine sedimentary processes and depositional environments in an embayment fed by West Greenland ice streams. Marine Geology 311-314, 1-16, doi: 10.1016/j.margeo.2012.04.006.
- Ó Cofaigh, C., Andrews, J.T., Jennings, A.E., Dowdeswell, J.A., Hogan, K.A., Kilfeather, A.A., and Sheldon, C. (2012). Glacimarine lithofacies, provenance and depositional processes on a West Greenland trough-mouth fan. Journal of Quaternary Science, doi: 10.1002/jqs.2569.
2011
- Hogan, K.A., Dix, J., Lloyd, J., Long, A.J., and Cotterill, C. (2011). Seismic stratigraphy records the deglacial history of Jakobshavn Isbræ, West Greenland. Journal of Quaternary Science, 26, 757-766, doi: 10.1002/jqs.1500.
- Batchelor, C.L., Dowdeswell, J.A., and Hogan, K.A. (2011). Late Quaternary ice flow and sediment delivery through Hinlopen Trough, Northern Svalbard margin: Submarine landforms and depositional fan. Marine Geology, 284, 13-27, doi:10.1016/j.margeo.2011.03.005.
2010
- Dowdeswell, J.A., Hogan, K.A., Noormets, R., Evans, J., Ó Cofaigh, C., and Ottesen, D, 2010. Past ice-sheet flow east of Svalbard inferred from streamlined subglacial landforms. Geology, 38, 163-166, doi: 10.1130/G30621.1.
- Hogan, K.A., Dowdeswell, J.A., Noormets, R., Evans, J., and Ó Cofaigh, C. Evidence for full-glacial flow and retreat of the Late Weichselian Ice Sheet from the waters around Kong Karls Land, eastern Svalbard, 2010. Quaternary Science Reviews, doi:10.1016/j.quascirev.2010.05.026
- Hogan, K.A., Dowdeswell, J.A., Noormets, R., Evans, J., and Ó Cofaigh, C. Submarine landforms and ice-sheet flow in the Kvitøya Trough, northwestern Barents Sea, 2010. Quaternary Science Reviews, doi:10.1016/j.quascirev.2010.08.015
- Dowdeswell, J.A., Jakobsson, M., Hogan, K.A., O'Regan, M., Backman, J., Evans, J., Hell, B., Löwemark, L., Marcussen, C., Noormets, R., Ó Cofaigh, C., Sellén, E., and Sölvsten, M. High-resolution geophysical observations of the Yermak Plateau and northern Svalbard margin: implications for ice-sheet grounding and deep-keeled icebergs, 2010. Quaternary Science Reviews, doi:10.1016/j.quascirev.2010.06.002.
Theses
- Hogan, K.A. (2008). The geomorphic and sedimentary record of glaciation on high-latitude continental margins with specific reference to the Northeastern Svalbard margin. Ph.D. Thesis, University of Cambridge. 225 pp.
- Hogan, K.A. (2001). Glacial sedimentation and deglacial history of inner Disko Bugt, West Greenland. Masters Thesis, University of Southampton. 70 pp.