Heather Stewart

Miss Heather Stewart

Marine Geologist

Location: Edinburgh

Tel: 0131 6500 259

E-mail Heather Stewart

Biography

  •  2015 – ongoing : PhD Research Student (part-time) at University of Stirling
  •  2008 – ongoing : Marine Habitat Mapping Project Leader
  •  2001 – ongoing : Marine Geologist, British Geological Survey
  •  2000 –2001 : Marine Geologist with Caledonian Geotech
  •  1997 –2001 : BSc (Hons), University of Glasgow, Geology and Applied Geology

Research interests

  • Marine Environmental Mapping Programme (MAREMAP): Mapping the offshore sea-bed substrate, geomorphology and Quaternary Geology utilising shallow seismic, sidescan sonar, multibeam echosounder and sample data. Development/promotion of new and novel techniques for acoustic data interpretation.
  • To study the impact of glacial/interglacial cycles and ice streaming on the Quaternary landforms and sediments in the North Sea Basin. Improved understanding of these marine sediments and their geomorphology will inform the distribution of sea-bed habitats, geohazards, resources, site selection for offshore renewables, and climate change.
  • Marine habitat mapping working with marine biologists to investigate the relationship between sea-bed substrate and associated biological communities.
  • UK involvement in the International Ocean Discovery Program.

Professional association

  •  2002 : Fellow of the Geological Society of London

Boards and committees

  •  2012 – ongoing : MASTS Deep-Sea Forum

Current projects and collaboration

  • Marine Sea-bed Mapping Initiative focusing on the glacial geomorphology and evolution offshore eastern Scotland and northeastern England.
  • Glacistore: Understanding Late Cenozoic glaciation and basin processes for the development of secure, large scale, offshore CO2 storage (North Sea). This project has formed the basis of an IODP proposal to the International Ocean Discovery Program (852-CPP).
  • Collaborative study of the deep-water environment of the Hatton-Rockall Basin with Marine Scotland Science, OceanLab (University of Aberdeen) and the Scottish Association of Marine Science. See the cruise blog.
  • Multidisciplinary study of the South Shetland Trough, offshore King George Island, Antarctica. The cruise, on the Spanish icebreaker RV Hesperides was funded through EuroFleets2.
  • Modelling the distribution of vulnerable ecosystems: Ongoing research with Dr Kerry Howell (University of Plymouth, Mapping the Deep Project Video) looking at modelling the distribution of Vulnerable Marine Ecosystems (Annex I of the Habitats Directive) in deep-water areas west of the United Kingdom.
  • Geological interpretation of the sea-bed sediments, geomorphology and geological evolution of the Explorer and Dangeard canyons of the UK South West Approaches (UK).
  • Studies into the initiation, growth and demise of cold-water coral mini-mounds. A collaborative project (MINIMOUND) led by Prof. Dr. David Van Rooij (Universiteit Gent).

Published outputs

Key papers

GOFF, J A, GULICK, S P S, PEREZ CRUZ, L, STEWART, H A, DAVIS, M, DUNCAN, D, SAUSTRUP, S, SANFORD, J, and URRUTIA FUCUGAUCHI, J. Accepted. Solution pans and linear sand bedforms on the bare-rock limestone shelf of the Campeche Bank, Yucatán Peninsula, Mexico. Continental Shelf Research.

STEWART, H A, and LONG, D. 2016. Glacigenic debris flows observed from high-resolution seafloor imagery generated from 3D seismic data, Faroe-Shetland Channel, North East Atlantic. From: DOWDESWELL, J A, CANALS, M, JAKOBSSON, M, TODD, B J, DOWDESWELL, E K and HOGAN, K A (eds). Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Geological Society, London, Memoirs. © The Geological Society of London.

DAVIES, J S, STEWART, H A, NARAYANASWAMY, B E, JACOBS, C, SPICER, J, GOLDING, N, and HOWELL, K L. 2015. Benthic assemblages of the Anton Dohrn Seamount (NE Atlantic): defining deep-sea biotopes to support habitat mapping and management efforts with a focus on Vulnerable Marine Ecosystems. PLOS One, Vol 10(5): e0124815. doi:10.1371/journal.pone.0124815

LARK, R M , MARCHANT, B P, DOVE, D, GREEN, S L, STEWART, H, and DIESING, M. 2015. Combining observations with acoustic swath bathymetry and backscatter to map seabed sediment texture classes: the empirical best linear un-biased predictor. Sedimentary Geology, Vol. 328, 17-32. doi: 10.1016/j.sedgeo.2015.07.012

ROSS, L K, ROSS, R E, STEWART, H A, and HOWELL, K L. 2015. The influence of data resolution on predicted distribution and estimates of extent of current protection of three ‘listed’ deep-sea habitats. PLOS ONE, Vol 10(10), e0140061. doi: 10.1371/journal.pone.0140061.

PIECHAUD, N, DOWNIE, A, STEWART, H A, and HOWELL, K L. 2015. The impact of modelling method selection on predicted extent and distribution of deep-sea benthic assemblages. Earth and Environmental Science Transactions of the Royal Society of Edinburgh. Vol. 105(4), 251-261. doi: 10.1017/S1755691015000122

STEWART, H A. 2015. What lies beneath: offshore data acquisition and how we turn those data into science. Proceedings of the Open University Geological Society, Vol. 1, 23-33. ISSN: 2058-5209. http://nora.nerc.ac.uk/510725/

STEWART, H A, DAVIES, J S, GUINAN, J C, and HOWELL, K L. 2014. The Dangeard and Explorer Canyons, South Western Approaches UK: Geology, sedimentology and newly discovered cold-water coral mini-mounds. Deep-Sea Res. II. Vol. 104, 230-244. doi: http://dx.doi.org/10.1016/j.dsr2.2013.08.018

DAVIES, J S, HOWELL, K L, STEWART, H A, GUINAN, J, and GOLDING, N. 2014. Defining biological assemblages (biotopes) of conservation interest in the submarine canyons of the South West Approaches (offshore United Kingdom) for use in marine habitat mapping. Deep-Sea Res. II. Vol. 104, 208-229. doi: 10.1016/j.dsr2.2014.02.001

DIESING, M, GREEN, S, STEPHENS, D, LARK, M, STEWART, H, and DOVE, D. 2014. Multibeam acoustic data interpretation for seabed mapping: Comparison of manual, geostatistical, object-based image analysis and machine learning approaches. Continental Shelf Research. doi: 10.1016/j.csr.2014.05.004

PHAM, C K, RAMIREZ-LLODRA, E, ALT, C H S, AMARO, T, BERGMANN, M, CANALS, M, COMPANY, J B, DAVIES, J, DUINEVELD, G, GALGANI, F, HOWELL, KL, HUVENNE, V A I, ISIDRO, E, JONES, D O B, LASTRAS, G, MORATO, T, GOMES-PEREIRA, J N, PURSER, A, STEWART, H, TOJEIRA, I, TUBAU, X, VAN ROOIJ, D, and TYLER, P A. 2014. Marine litter distribution and abundance in European Seas, from the shelf to deep basins. PLOS ONE, Vol 9(4), e95839. doi: 10.1371/journal.pone.0095839

STEWART, H A, and LONG, D. 2012. The timing and significance of gully incision on the eastern flank of the Faroe–Shetland Channel and its impact on seafloor infrastructure. Near Surface Geophysics, Vol. 10, 317-331. doi: 10.3997/1873-0604. 2012014

LARK, R M, DOVE, D, GREEN, S L, RICHARDSON, A E, STEWART, H, and STEVENSON, A. 2012. Spatial prediction of seabed sediment texture classes by cokriging from a legacy database of point observations. Sedimentary Geology, Vol. 281, 35-49.

HOWELL, K L, PULIDO ENDRINO, I, and STEWART, H A. 2011. When the species is also a habitat: application of predictive species modelling software Maxent to biogenic habitat distribution modelling. Biological Conservation, Vol. 144, 265-2665.

STEVENSON, A, STEWART, H and ZISKA, H. 2011. Sea-bed geology and Environment. 229-238 in RITCHIE, J D, ZISKA, H, JOHNSON, H, and EVANS, D (EDITORS). 2011. Geology of the Faroe-Shetland Basin and adjacent areas. British Geological Survey Research Report, RR/11/01; Jarðfeingi Research Report RR/11/01.

EVANS, D, ARMOUR, A, BATHURST, P, GAMMAGE, J, SWALLOW, J, GRAHAM, C, and STEWART, H. 2003. Introduction and database. 11-15 in The Millennium Atlas: petroleum geology of the central and northern North Sea. EVANS, D, GRAHAM, C, ARMOUR, A, and BATHURST, P (editors and co-ordinators). (London: The Geological Society of London.)