Classification of River Reaches on the Little Disturbed East Alligator River, Northern Australia

DOI: 10.4236/ijg.2013.46A2007   PDF   HTML   XML   4,302 Downloads   5,822 Views   Citations


The East Alligator River drains a 7000 km2 catchment in northern Australia comprised largely of Aboriginal land and has a very low average population density of about 0.15 persons per km2. River reaches were classified according to geomorphic features on both the East Alligator River and its major tributary, Magela Creek, next to which is located the Ranger uranium mine. Sixteen reaches were described for the 241.4 km of the East Alligator River and ten reaches were described for the 118.8 km of Magela Creek. The dominant river types on the East Alligator River were various types of anabranching rivers, sandstone gorges and cuspate tidal meanders. On Magela Creek the dominant river types were wetlands and channel billabongs, island anabranching and sandstone gorges. It is unusual for anabranching rivers and gorges to be so dominant. Current river classification schemes could not accommodate all the various river types and need to be modified so that tidal channels are covered in more detail and so that the classification of anabranching rivers recognises that sand-bed varieties occur in partly confined valley settings.

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M. Saynor and W. Erskine, "Classification of River Reaches on the Little Disturbed East Alligator River, Northern Australia," International Journal of Geosciences, Vol. 4 No. 6B, 2013, pp. 53-65. doi: 10.4236/ijg.2013.46A2007.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] W. M. Davis, “The Geographical Cycle,” Geographical Journal, Vol. 14, No. 5, 1899, pp. 481-504. doi:10.2307/1774538
[2] F. A. Melton, “An Empirical Classification of Flood-plain Streams,” Geographical Review, Vol. 26, No. 4, 1936, pp. 593-609. doi:10.2307/209717
[3] J. G. Speight, “Landform,” In: The National Committee on Soil and Terrain, Australian Soil and Land Survey Field Handbook, CSIRO Publishing, Collingwood, 2009, pp. 15-72.
[4] J. D. Mollard, “Landforms and Surface Materials of Canada. A Stereoscopic Airphoto Atlas and Glossary,” Saskatchewan, 1974.
[5] S. J. Riley, R. F. Warner and W. D. Erskine, “Classification of Waterbodies in New South Wales,” Water Resources Commission of New South Wales, North Sydney, 1984.
[6] G. J. Brierley and K. A. Fryirs, “Geomorphology and River Management. Applications of the River Styles Framework,” Blackwell Publishing, Malden, 2005.
[7] L. M. Cowardin, V. Carter, F. C. Golet and E. T. La Roe, “Classification of Wetlands and Deepwater Habitats of the United States,” Office of Biological Services, Fish and Wildlife Service, US Department of Interior, Washington DC, 1979.
[8] L. M. Cowardin, “Wetlands and Deepwater Habitats: A New Classification,” Journal of Soil and Water Conservation, Vol. 37, No. 2, 1982, pp. 83-85.
[9] C. R. Neill and V. J. Galay, “Systematic Evaluation of River Regime,” Journal of Waterways and Harbours Division, Proceedings American Society of Civil Engineers, Vol. 93, No. 1, 1967, pp. 25-53.
[10] J. D. Mollard, “Airphoto Interpretation of Fluvial Features,” In: Subcommittee on Hydrology, Associate Committee on Geodesy and Geophysics, Natural Research Council of Canada, Fluvial Processes and Sedimentation, Hydrology Symposium No. 9, 1973, pp. 341-380.
[11] R. Kellerhals, M. Church and D. I. Bray, “Classification and Analysis of River Processes,” Journal of the Hydraulics Division, Proceedings of American Society of Civil Engineers, Vol. 102, No. 7, 1976, pp. 813-829.
[12] M. P. Mosley, “A Procedure for Characterising River Channels,” Ministry of Works and Development, Water and Soil, Miscellaneous Publication No. 32, 1982.
[13] A. J. Davenport, A. M. Gurnell and P. D. Armitage, “Habitat Survey and Classification of Urban Rivers,” River Research and Applications, Vol. 20, No. 6, 2004, pp. 687-704. doi:10.1002/rra.785
[14] C. R. Thorne, “Stream Reconnaissance Handbook,” John Wiley and Sons, Chichester, 1998.
[15] J. H. Harris and P. C. Gehrke, “Fish and Rivers in Stress. The NSW Rivers Survey,” NSW Fisheries Office of Conservation and the Cooperative Research Centre for Freshwater Ecology, Sydney, 1997.
[16] P. C. Gehrke, “Sustainable Futures for Australia’s Tropical Rivers: Introduction to Current Research and Information Needs,” Marine and Freshwater Research, Vol. 56, No. 3, 2005, pp. 5-7. doi:10.1071/MF05064
[17] S. K. Hamilton and P. C. Gehrke, “Australia’s Tropical River Systems: Current Scientific Understanding and Critical Knowledge Gaps for Sustainable Management,” Marine and Freshwater Research, Vol. 56, No. 3, 2005, pp. 243-252. doi:10.1071/MF05063
[18] W. D. Erskine, M. Saynor, L. Erskine, K. Evans and D. R. Moliere, “A Preliminary Typology of Australian Tropical Rivers and Implications for Fish Community Ecology,” Marine and Freshwater Research, Vol. 56, No. 3, 2005, pp. 253-267. doi:10.1071/MF04078
[19] T. J. East, G. C. Nanson and R. G. Roberts, “Geomorphological Stability of Sites for the Long-Term Containment of Uranium Mining Wastes in the Seasonally Wet Tropics, Northern Australia,” Zeitschrift fur Geomorphologie, Vol. 87, 1993, pp. 171-182.
[20] C. M. Finlayson and I. von Oertzen, “The Kakadu Region,” In: C. M. Finlayson and I. von Oertzen, Eds., Landscape and Vegetation Ecology of the Kakadu Region, Northern Australia, Kluwer Academic Publishers, Dordrecht, 1996, pp. 1-15. doi:10.1007/978-94-009-0133-9_1
[21] T. J. East, “Landform Evolution,” In: C. M. Finlayson and I. von Oertzen, Eds., Landscape and Vegetation Ecology of the Kakadu Region, Northern Australia, Kluwer Academic Publishers, Dordrecht, 1996, pp. 37-55. doi:10.1007/978-94-009-0133-9_3
[22] W. D. Erskine and M. J. Saynor, “Assessment of the OffSite Geomorphic Impacts of Uranium Mining on Magela Creek, Northern Territory, Australia,” Supervising Scientist Report 156, Supervising Scientist, Canberra, 2000.
[23] J. Hays, “Land Surfaces and Laterites in the North of the Northern Territory,” In: J. N. Jennings and J. A. Mabbutt, Eds., Landform Studies from Australia and New Guinea, Australian National University Press, Canberra, 1967, pp. 182-210.
[24] M. A. J. Williams, “Geomorphology of the Adelaide-Alligator area,” C. S. I. R. O. Land Research Series, Vol. 25, 1969, pp. 71-94.
[25] S. A. Short, R. T. Lowson, J. Ellis and D. M. Price, “Thorium-Uranium Disequilibrium Dating of Late Quaternary Ferruginous Concretions and Rinds,” Geochimica et Cosmochimica Acta, Vol. 53, No. 6, 1989, pp. 1379-1389. doi:10.1016/0016-7037(89)90070-7
[26] G. Pickup, R. J. Wasson, R. F. Warner, D. Tongway and R. L. Clark, “A Feasibility Study of Geomorphic Research for the Long Term Management of Uranium Mill Tailings,” C. S. I. R. O. Division of Water Resources Research, Divisional Report 87/2, 1987.
[27] G. C. Nanson, T. J. East and R. G. Roberts, “Quaternary Stratigraphy, Geochronology and Evolution of the Magela Creek Catchment in the Monsoon Tropics of Northern Australia,” Sedimentary Geology, Vol. 83, No. 3-4, 1993, pp. 277-302. doi:10.1016/0037-0738(93)90017-Y
[28] R. J. Wasson, “Modern Sedimentation and Late Quarternary Evolution of the Magela Creek Plain,” Supervising Scientist for the Alligator Rivers Region, Research Report 6, Australian Government Publishing Service, Canberra, 1992.
[29] C. D. Woodroffe, B. G. Thom and J. M. A. Chappell, “Development of Widespread Mangrove Swamps in Mid-Holocene Times in Northern Australia,” Nature, Vol. 317, 1985, pp. 711-713. doi:10.1038/317711a0
[30] C. D. Woodroffe, J. M. A. Chappell, B. G. Thom and E. Wallensky, “Depositional Model of a Macrotidal Estuary and Flood Plain, South Alligator River, Northern Australia,” Sedimentology, Vol. 36, No. 5, 1989, pp. 737-756. doi:10.1111/j.1365-3091.1989.tb01743.x
[31] B. T. Hart and R. J. McGregor, “Limnological Survey of Eight Billabongs in the Magela Creek Catchment, Northern Territory,” Australian Journal of Marine and Freshwater Research, Vol. 31, No. 5, 1980, pp. 611-626. doi:10.1071/MF9800611
[32] T. Walker and P. Tyler, “Tropical Australia, a Dynamic Limnological Environment,” Verhandlungen des Internationalen Verein Limnologie, Vol. 22, 1984, pp. 1727-1734.
[33] R. S. Needham, “Geology of the Alligator Rivers Uranium Field, Northern Territory,” Bureau of Mineral Resources, Bull. 224, 1988.
[34] L. J. Carson, P. W. Haines, A. Brakel, B. A. Pietsch and P. A. Ferenczi, “1:250 000 Geological Map Series Explanatory Notes Milingimbi SD 53-2,” Department of Mines and Energy, Northern Territory Geological Survey and Australian Geological Survey Organisation, Darwin, 1999.
[35] C. V. McQuade, J. T. Arthur and I. J. Butterworth, “Climate and Hydrology,” In: C. M. Finlayson and I. von Oertzen, Eds., Landscape and Vegetation Ecology of the Kakadu Region, Northern Australia, Kluwer Academic Publishers, Dordrecht, 1996, pp. 17-35. doi:10.1007/978-94-009-0133-9_2
[36] N. S. McDonald and J. McAlpine, “Floods and Droughts: The Northern Climate,” In: C. D. Haynes, M. G. Ridpath and M. A. J. Williams, Eds., Monsoonal Australia: Landscape, Ecology and Man in the Northern Lowlands, A. A. Balkema Publishers, Rotterdam, 1991, pp. 19-29.
[37] W. D. Erskine, M. J. Saynor and M. Townley-Jones, “Temporal Changes in Annual Rainfall in the ‘Top End’ of Australia,” In: S. W. Franks, E. Boegh, E. Blyth, D. M. Hannah and K. K. Yilmaz, Eds., Hydro-Climatology: Variability and Change, Wiley International Association of Hydrological Sciences, Wallingford, 2011, pp. 57-62.
[38] W. D. Erskine, “Stream Classification,” In: J. Lehr, J. Keeley, J. Lehr and T. B. Kingery III, Eds., Water Encyclopedia. Surface and Agricultural Water, Wiley Interscience, Hoboken, 2005, pp. 65-71. doi:10.1002/047147844X.sw966
[39] P. A. Bisson and D. R. Montgomery, “Valley Segments, Stream Reaches and Channel Units,” In: F. R. Hauer and G. A. Lamberti, Eds., Methods in Stream Ecology, Academic Press, San Diego, 1996, pp. 23-52.
[40] W. D. Erskine, “Downstream Hydrogeomorphic Impacts of Eildon Reservoir on the Mid-Goulburn River, Victoria,” Proceedings of Royal Society of Victoria, Vol. 108, No. 1, 1996, pp. 1-15.
[41] W. D. Erskine, N. Terrazzolo and R. F. Warner, “River Rehabilitation from the Hydrogeomorphic Impacts of a Large Hydro-Electric Power Project: The Case of the Snowy River, Australia,” Regulated Rivers: Research and Management, Vol. 15, No. 1-3, 1996, pp. 3-24. doi:10.1002/(SICI)1099-1646(199901/06)15:1/3<3::AID-RRR532>3.0.CO;2-R
[42] W. D. Erskine, A. A. Webb, L. M. Turner, B. Miners, T. Rose and R. Bevitt, “Benchmarking of Present River Condition after 34 Years of Large Scale Interbasin Water Transfers: Snowy River, Australia,” In: I. Rutherfurd, F. Sheldon, G. Brierley and C. Kenyon, Eds., Proceedings of the Third Australian Stream Management Conference, The Value of Healthy Streams, Vol. 1, Cooperative Research Centre for Catchment Hydrology, Clayton, 2001, pp. 653-658.
[43] W. D. Erskine, “Environmental Impacts of Extractive Industries on the Hawkesbury-Nepean River,” In: J. P. Powell, Ed., The Improvers Legacy, Deerubbin Press, Berowra Heights, 1998, pp. 49-74.
[44] D. L. Rosgen, “A Classification of Natural Rivers,” Catena, Vol. 22, No. 3, 1994, pp. 169-199. doi:10.1016/0341-8162(94)90001-9
[45] D. L. Rosgen, “Applied River Morphology,” Wildland Hydrology, Pagosa Springs, 1996.
[46] W. D. Erskine, M. J. Saynor and J. Lowry, “Classification of Australian Tropical Rivers to Predict Climate Change Impacts,” Proceedings 9th International Rivers Symposium, Brisbane, September 2006, p. 14.
[47] M. Saynor, W. D. Erskine and G. Staben, “Hydrogeomorphic Effects of the 2007 Extreme Flood on the East Alligator River, NT: Impacts on Ecotourism Operations,” In: J. R. Grove and I. D. Rutherfurd, Eds., Proceedings of the 6th Australian Stream Management Conference, Managing for Extremes, 6-8 February 2012, River Basin Management Society, Canberra, 2012, pp. 177-182.
[48] V. R. Baker and G. Pickup, “Flood Geomorphology of the Katherine Gorge, Northern Territory, Australia,” Geological Society of America Bulletin, Vol. 98, No. 6, 1987, pp. 635-646. doi:10.1130/0016-7606(1987)98<635:FGOTKG>2.0.CO;2
[49] A. S. Murray, E. Wohl and T. J. East, “Thermoluminescence and Excess 226Ra Decay Dating of Late Quarternary Fluvial Sands, East Alligator River, Australia,” Quaternary Research, Vol. 37, No. 1, 1992, pp. 29-41. doi:10.1016/0033-5894(92)90004-3
[50] S. D. Tooth, “Floodouts in Central Australia,” In: A. J. Miller and A. Gupta, Eds., Varieties of Fluvial Form, Wiley & Sons, Chichester, 1999, pp. 219-247.
[51] L. B. Leopold and M. G. Wolman, “River Channel Patterns: Braided, Meandering and Straight,” United States Geological Survey Professional Paper 282-B, United States Department of the Interior, Washington, 1957.

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