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Department of Geography

Staff Profile

Dr Ian S. Evans, MA Geography Cambridge; MS Geology Yale; PhD Geography Cambridge

Emeritus Reader in the Department of Geography
Telephone: +44 (0)1740 653705

Contact Dr Ian S. Evans (email at


Geomorphometry and mountain glaciation. Developing fundamental principles of general and specific geomorphometry (the analysis of land surface form), especially for altitude, slope and curvature values, their relationships, and scale dependence or fractal properties.

Applying these approaches to the morphology of glaciated landforms in mountainous regions, and to slopes in general, especially with use of Digital Terrain Models. Analysing and developing models for the distribution of glaciers and glacial cirques. Surveys of cirques and glaciers in British Columbia, Britain, the Alps and Scandinavia. Cirque shape and size, allometric and diverse development. Data analysis, especially directional and spatial data, and analytical thematic cartography.

Teaching interest include: Geomorphology, Glaciation & Cold Environments; Mountain Glaciation; Data analysis (level 2 & MSc in SIT); Cartography & graphics; and DEMs & Glaciation, for GeoEnv MSc.

Research Projects

  • Geomorphometry from Digital Elevation Models
  • Cirque glaciation of Wales, Northern England, Southern & Western Scotland
  • Glacier distribution and change in SW British Columbia
  • Cirque development in SW British Columbia
  • Predictive models for glacier distribution
  • Measuring asymmetry of glaciation due to climate

Full Publication List

Research Interests

  • Geomorphometry, especially of glaciated landforms
  • Glacier and cirque distribution of glaciated mountains

Selected Publications

Journal Article

  • Minar, J. & Evans, I.S. Elementary forms for land surface segemntation: The theoretical basis of terrain analysis and geomorphological mapping. Geomorphology. 2008;95:236-259.
  • Evans, I.S. Glacier distribution and direction in the Arctic: the unusual nature of Svalbard. Landform Analysis. 2007;5:21-24.
  • Evans, I.S. Glacier distribution in the Alps: statistical modelling of altitude and aspect. "Geografiska Annaler: Series A, Physical Geography". 2006;88 A:115-133.
  • Evans, I.S. Local aspect asymmetry of mountain glaciation: A global survey of consistency of favoured directions for glacier numbers and altitudes. Geomorphology. 2006;73:166-184.
  • Evans, I.S. & Cox, N.J. Global variations of local asymmetry in glacier altitude: separation of north-south and east-west components. Journal of Glaciology. 2005;51:469-482.
  • I.S. Evans Twentieth-Century Change in Glaciers of the Bendor and Shulaps Ranges, British Columbia Coast Mountains. Quaternary Newsletter. 2004;104:70-72.
  • J. Schmidt, I.S. Evans & J. Brinkmann Comparison of polynomial models for land surface curvature calculation. International Journal of Geographical Information Science. 2003;17:797-814.
  • C.J. McClean & I.S. Evans Apparent fractal dimensions from continental scale digital elevation models using variogram methods. Transactions in GIS. 2000;4:361-378.
  • I.S. Evans Disappearing glaciers? Durham University Geographical Society Journal 2000. 2000;27-33.
  • I.S. Evans Was the cirque glaciation of Wales time-transgressive or not? Annals of Glaciology. 1999;28:33-39.
  • N. Kumar & I.S. Evans Map output format from GIS: optimising visual quality of paper and electronic atlases. Cartographic Journal. 1997;34:37-41.
  • I.S. Evans Abraided rock landforms (whalebacks) developed under ice streams in mountain areas. Annals of Glaciology. 1996;22:9-16.
  • Evans, I. S. & Cox, N. J. The form of glacial cirques in the English Lake District, Cumbria. Zeitschrift Fur Geomorphologie. 1995;39:175-202.
  • I.S. Evans & C.J. McClean The land surface is not unifractal; variograms, cirque scale and allometry. Zeitschrift Fur Geomorphologie. 1995;Supplement-Band 101:127-147.

Authored book

  • E. Howarth, G. De Boer, I.S. Evans, H. Osmaston, W. Pennington, A. Smith, P. Storey & B. Ware Tarns of the Central English Lake District: depth surveys and the environmental context. Ambleside, Cumbria. Brathay Exploration Group Trust; 2003.

Chapter in book

  • Evans, I.S. Glacial cirques of the Brecon Beacons. In: Carr, S.J., Coleman, C.G., Humpage, A.J. & Shakesby, R.A. London.: Quaternary Research Association; 2007:36-40.
  • Evans, I.S. Glacial landforms, erosional features.. In: Evans, D.J.A. Encyclopedia of Quaternary Science. Amsterdam.: Elsevier; 2007:838-852.
  • I.S. Evans Cirque, glacial. In: A. Goudie Encyclopedia of Geomorphology. Routledge; 2004:154-158.
  • Evans, I.S. Geomorphometry. In: Goudie, A. Encyclopedia of Geomorphology. London: Routledge; 2004:435-439.
  • I.S. Evans Lakeland tarns, cirques and glaciation. In: E. Howarth, G. Boer, I.S. Evans, A. Smith, P. Storey, W. Osmastom & B. Ware Tarns of the English Lake District: depth surveys and the environmental context. Brathay Exploration Trust; 2003:9-19.
  • Evans, I.S. Scale-Specific Landforms and Aspects of the Land Surface. In: Evans, I.S., Dikau, R., Tokunaga, E., Ohmori, H. & Hirano, M. Concepts and Modelling in Geomorphology: International Perspectives. Tokyo.: Terrapub; 2003:61-84.
  • I.S. Evans Active Margin, Factor of safety, Fan delta, Force, Fractal, Headwall, Resistance, Rifting, River terrace, Supercontinent. In: A.S. Goudie & D. Thomas Dictionary of Physical Geography. Blackwell's; 2000.
  • I.S. Evans Castle Eden Dene and Blunts Dene. In: D.R. Bridgland, B.P. Horton & J.B. Innes The Quaternary of North-east England: Field Guide. Quaternary Research Association; 1999:57-64.
  • I.S. Evans Cartographic Techniques in Geomorphology, Geomorphologische Kartierung. In: A.S. Goudie Translation of 1990 Geomorphological Techniques into German as Geomorphologie: Ein Methodenhandbuch fur Studium und Praxis. Springer; 1998:106-119.
  • I.S. Evans General Geomorphometry. In: A.S. Goudie Translation of 1990 Geomorphological Techniques into German as Geomorphologie: Ein Methodenhandbuch fur Staduim und Praxis. Springer; 1998:45-59.
  • I.S. Evans What do terrain statistics really mean? In: S.N. Lane, K.S. Richards & J.H. Chandler Landform monitoring, modelling and analysis. J Wiley; 1998:119-138.
  • I.S. Evans Cirques and moraines of the Helevellyn Range, Cumbria: Grisedale and Ullswater. In: J. Boardman Geomorphology of the Lake District: a field guide. British Geomorphological Research Group; 1997:63-87.
  • I.S. Evans Process and form in the erosion of glaciated mountains. In: D.R. Stoddart Process and form in geomorphology. Routledge; 1997:145-174.

Edited book

  • Evans, I. S., Dikau, R., Tokunaga, E., Ohmori, H. & Hirano, M. Concepts and modelling in Geomorphology: International Perspectives. Terrapub; 2003.

Conference Proceeding

  • K.E. Arrell & I.S. Evans Predicting Glacier Distributions: Local Climate Predictions. Sherbrooke, Quebec, Canada: Proceedings, 60th Eastern Snow Conference; 2003.
  • C.J. McClean & I.S. Evans A further difference between the land surface and Fractional Brownian Surfaces. Tokyo: Proceedings of the symposia on New Concepts & Models in Geomorphology and Geomorphometry, DEMs and GIS; 2001.
  • C.J. McClean & I.S. Evans Non-fractal behaviour in real land surfaces. University of Glamorgan, Wales: GISRUK 2001; 2001.
  • I.S. Evans Some geomorphometric characteristics of real land surfaces. University of Glamorgan: GISRUK 2001; 2001.

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