Dr Ian S. Evans
MA Geography Cambridge; MS Geology Yale; PhD Geography Cambridge
|Emeritus Reader in the Department of Geography||+44 (0)1740 653705|
|Emeritus Reader , Hazards and Surface Change|
|Emeritus Reader , Sea Level, Ice and Climate|
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.
- 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
- Full Publication List (.pdf file)
- geomorphometry, especially of glaciated landforms
- glacier and cirque distribution of glaciated mountains
- E. Howarth, G. De Boer, I.S. Evans, H. Osmaston, W. Pennington, A. Smith, P. Storey & B. Ware (2003). Tarns of the Central English Lake District: depth surveys and the environmental context. Ambleside, Cumbria. Brathay Exploration Group Trust.
Chapter in book
- Evans, D.J.A. & Evans, I.S. (2022). Glacial Processes and Landforms. In The History of the Study of Landforms or the Development of Geomorphology. Volume 5: Geomorphology in the Second Half of the Twentieth Century. Burt, T.P., Goudie, A.S. & Viles, H.A. Geological Society. 58: 333 - 377.
- Evans, I.S. (2007). Glacial cirques of the Brecon Beacons. In The Quaternary of the Brecon Beacons: Field Guide. Carr, S.J., Coleman, C.G., Humpage, A.J. & Shakesby, R.A. London.: Quaternary Research Association. 36 - 40.
- Evans, I.S. (2007). Glacial landforms, erosional features. In Encyclopedia of Quaternary Science. Evans, D.J.A. Amsterdam.: Elsevier. 1: 838-852.
- Evans, I.S. (2006). Glacial Erosional Processes and Forms: Mountain Glaciation and Glacier Geography. In The History Of The Study Of Landforms Or The Development Of Geomorphology. Burt, T.P. & Cox, N.J. London and New York.: Routledge.
- I.S. Evans (2004). Cirque, glacial. In Encyclopedia of Geomorphology. A. Goudie Routledge. 154-158.
- Evans, I.S. (2004). Geomorphometry. In Encyclopedia of Geomorphology. Goudie, A. London: Routledge. 435-439.
- I.S. Evans (2003). Lakeland tarns, cirques and glaciation. In Tarns of the English Lake District: depth surveys and the environmental context. E. Howarth, G. Boer, I.S. Evans, A. Smith, P. Storey, W. Osmastom & B. Ware Brathay Exploration Trust. 9-19.
- Evans, I.S. (2003). Scale-Specific Landforms and Aspects of the Land Surface. In Concepts and Modelling in Geomorphology: International Perspectives. Evans, I.S., Dikau, R., Tokunaga, E., Ohmori, H. & Hirano, M. Tokyo.: Terrapub. 61-84.
- I.S. Evans (2000). Active Margin, Factor of safety, Fan delta, Force, Fractal, Headwall, Resistance, Rifting, River terrace, Supercontinent. In Dictionary of Physical Geography. A.S. Goudie & D. Thomas Blackwell's. 3.
- I.S. Evans (1999). Castle Eden Dene and Blunts Dene. In The Quaternary of North-east England: Field Guide. D.R. Bridgland, B.P. Horton & J.B. Innes Quaternary Research Association. 57-64.
- I.S. Evans (1998). General Geomorphometry. In Translation of 1990 Geomorphological Techniques into German as Geomorphologie: Ein Methodenhandbuch fur Staduim und Praxis. A.S. Goudie Springer. 45-59.
- I.S. Evans (1998). What do terrain statistics really mean? In Landform monitoring, modelling and analysis. S.N. Lane, K.S. Richards & J.H. Chandler J Wiley. 119-138.
- I.S. Evans (1998). Cartographic Techniques in Geomorphology, Geomorphologische Kartierung. In Translation of 1990 Geomorphological Techniques into German as Geomorphologie: Ein Methodenhandbuch fur Studium und Praxis. A.S. Goudie Springer. 106-119.
- I.S. Evans (1997). Cirques and moraines of the Helevellyn Range, Cumbria: Grisedale and Ullswater. In Geomorphology of the Lake District: a field guide. J. Boardman British Geomorphological Research Group. 63-87.
- I.S. Evans (1997). Process and form in the erosion of glaciated mountains. In Process and form in geomorphology. D.R. Stoddart Routledge. 145-174.
- K.E. Arrell & I.S. Evans (2003). Predicting Glacier Distributions: Local Climate Predictions. Proceedings, 60th Eastern Snow Conference, Sherbrooke, Quebec, Canada.
- C.J. McClean & I.S. Evans (2001). Non-fractal behaviour in real land surfaces. GISRUK 2001, University of Glamorgan, Wales.
- I.S. Evans (2001). Some geomorphometric characteristics of real land surfaces. GISRUK 2001, University of Glamorgan.
- C.J. McClean & I.S. Evans (2001). A further difference between the land surface and Fractional Brownian Surfaces. Proceedings of the symposia on New Concepts & Models in Geomorphology and Geomorphometry, DEMs and GIS, Tokyo, Geographic Information Systems Association.
- Evans, I. S., Dikau, R., Tokunaga, E., Ohmori, H. & Hirano, M. (2003). Concepts and modelling in Geomorphology: International Perspectives. Terrapub.
- Evans, Ian S. (2019). The erosion of glaciated mountains: evidence from hypsoclinometry. Revista de Geomorfologie 21(1): 5-14.
- Leigh, J.R., Stokes, C.R., Carr, J.R., Evans, I.S., Andreassen, L.M. & Evans, D.J.A (2019). Identifying and mapping very small (<0.5 km2) mountain glaciers on coarse to high-resolution imagery. Journal of Glaciology 65(254): 873-888.
- Barr, Iestyn D., Ely, Jeremy C., Spagnolo, Matteo, Evans, Ian S. & Tomkins, Matt D. (2019). The dynamics of mountain erosion: cirque growth slows as landscapes age. Earth Surface Processes and Landforms 44(13): 2628-2637.
- Zhang, Wei, Chai, Le, Evans, Ian S, Liu, Liang, Li, Ya-peng, Qiao, Jing-ru, Tang, Qian-yu & Sun, Bo (2019). Geomorphic features of Quaternary glaciation in the Taniantaweng Mountain, on the southeastern Qinghai-Tibet Plateau. Journal of Mountain Science 16(2): 256-274.
- Minar, J. & Evans, I.S. (2008). Elementary forms for land surface segemntation: The theoretical basis of terrain analysis and geomorphological mapping. Geomorphology 95: 236-259.
- Evans, I.S. (2007). Glacier distribution and direction in the Arctic: the unusual nature of Svalbard. Landform Analysis 5: 21-24.
- Evans, I.S. (2006). Local aspect asymmetry of mountain glaciation: A global survey of consistency of favoured directions for glacier numbers and altitudes. Geomorphology 73(1-2): 166-184.
- Evans, I.S. (2006). Glacier distribution in the Alps: statistical modelling of altitude and aspect. Geografiska Annaler: Series A, Physical Geography 88(2): 115-133.
- Evans, I.S. (2006). Allometric development of glacial cirque form: Geological, relief and regional effects on the cirques of Wales. Geomorphology 80(3-4): 245-266.
- Evans, I.S. & Cox, N.J. (2005). Global variations of local asymmetry in glacier altitude: separation of north-south and east-west components. Journal of Glaciology 51(174): 469-482.
- I.S. Evans (2004). Twentieth-Century Change in Glaciers of the Bendor and Shulaps Ranges, British Columbia Coast Mountains. Quaternary Newsletter 104: 70-72.
- J. Schmidt, I.S. Evans & J. Brinkmann (2003). Comparison of polynomial models for land surface curvature calculation. International Journal of Geographical Information Science 17(8): 797-814.
- C.J. McClean & I.S. Evans (2000). Apparent fractal dimensions from continental scale digital elevation models using variogram methods. Transactions in GIS 4(4): 361-378.
- I.S. Evans (2000). Disappearing glaciers? Durham University Geographical Society Journal 2000 27-33.
- I.S. Evans (1999). Was the cirque glaciation of Wales time-transgressive or not? Annals of Glaciology 28: 33-39.
- N. Kumar & I.S. Evans (1997). Map output format from GIS: optimising visual quality of paper and electronic atlases. Cartographic Journal 34(1): 37-41.
- I.S. Evans (1996). Abraided rock landforms (whalebacks) developed under ice streams in mountain areas. Annals of Glaciology 22: 9-16.
- I.S. Evans & C.J. McClean (1995). The land surface is not unifractal; variograms, cirque scale and allometry. Zeitschrift Fur Geomorphologie Supplement-Band 101: 127-147.
- Evans, I. S. & Cox, N. J. (1995). The form of glacial cirques in the English Lake District, Cumbria. Zeitschrift Fur Geomorphologie 39: 175-202.