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<br />as part of the storm water management <br />system. Maximum use should b~ ma~~ of <br />natural drainage. The installation of <br />stocm water inl~ts should be delayed as <br />long as possible because as soon as the <br />runoff enters the pipe system it is <br />carried rapidly downstream and may pOSe <br />flood hazards in the lower part of the <br />drainage basin. <br /> <br />ANON. <br /> <br />1977: "Effects <br />industrialisation <br />regime and on <br />Proceedings of the <br />October 1977, IAHS <br />572pp. <br /> <br />of urbanisation and <br />on the hydrological <br />water quality". <br />Amsterdam Symposium, <br />Publication No.123: <br /> <br />Key words: <br />drology; <br />cbang~. <br /> <br />urbanisation; <br />water pollution; <br /> <br />urban hy- <br />landuse <br /> <br />The voluroe conte ins 63 papers, submit- <br />ted for the 9lenary sessions of the <br />symposium, referring to the following <br />themes: el) the effects of urbanisa- <br />tion and industrialisation on the hy- <br />drological regime: (2) the effects of <br />urbanisation and industrialisation on <br />water quality; and ()) water policy as <br />a factor in urbanisation and industri- <br />alisation. Papers are abst(acted sep- <br />arately. <br /> <br />APMANN, R.P. 1974: "The- influence of ur- <br />banisation on stream channel beh8vi- <br />our-. In, Proceedings National Sympo- <br />sium on urban rainfall and runoff and <br />sediment control, University of Ken- <br />tucky, Lexington, Ky: pl83-166. <br /> <br />Key words: <br />erosion; <br />channels: <br />rates. <br /> <br />urbanisation~ streamflow; <br />channel erosion: alluvial <br />bank erosion; erosion <br /> <br />A method was proposed for evaluating <br />the impact of urban development on <br />stream channel behavior. The method <br />was based on equations relating the hy- <br />draulic geometry to mean flow dis- <br />charges. Urban development can result <br />in stream channel enlargement in af- <br />fected watersheds with consequent pro- <br />duction of sedi~ents from the channel. <br />If development proceeds for a long <br />time, channel instability may be a con- <br />tinuing problem. In the first approxi- <br />mation, the rate of channel sediment <br />production and the ultimate channel <br />812e can be evaluated from equations <br />derived from the hydraulic geometry re- <br />lations for a stream, As an example, a <br />channel in a watersned changing from <br />natural conditions to an urbanised area <br />having 30 percent impervious area would <br />enlarge by a factor of about 2.8 times <br />in the process. Another example indi- <br />cated that the steady d~velopment of <br />the Cy Cuyahoga River Basin, Ohio, is <br />responsible for a sediment production <br />of about 40,000 tons/year from the <br />channel between Old Portage and Inde- <br />pendence, a distance of 31 miles. <br /> <br />AllAI, A. et a1. 1977: .orban flood water <br />management systems in semi-arid <br />regions: model extension, design and <br />applications-. Arizona Wate~ Resources <br />Research Centre, Tucson. Completion <br /> <br />:;" <br /> <br />Report, OWRT A-049-ARIZ (1); <br />(NTIS PB-277 485). <br /> <br />63?p. <br /> <br />Key words: model studies: u~ban ru- <br />noff; r~infall-runoff relQtionships: <br />urban drainage: watersh~d management. <br /> <br />A non-linear res~rvoir model is used to <br />present the r~infall-runoff reletion- <br />ships for thunderstorms on the urban <br />watersheds of Tucson, Arizona. Two <br />types of computer programs are devel- <br />oped: a calibration program to obtain <br />a best-fit calculate~ hydroqraph: and <br />a verification 9rogram to g~nerate <br />storm hydroqraphs given the wat~rsh~d <br />characteristics and 1'l hYEi-"tograph. <br />Calibration reveals the relation~hip of <br />the model parameters, namely, (f) the <br />inflow coefficient, (a) the const~nt <br />coefficient, and (TL) the time l;:lq, to <br />the" total rainfall, drainage ~rea, <br />channel length, and infiltration ca~a- <br />city of the watersh~d. The av~rage <br />discrepancy between the pre~ict~d hy- <br />drograph and the actual hydrogrann for <br />Tucson urban watersheds is 20-25 per- <br />cent. <br /> <br />. <br /> <br />. <br /> <br />ARGOE, J.R. 1916) "An 'environmental' ap- <br />proach to siorm water manag~m~nt in th~ <br />Adelaide Hills (^ustralia)-. In, Hy- <br />drology Sy~posium, Sydney, NZIE Austra- <br />lia Prepri~ts of p3gers; pl~8-ll2. <br /> <br />Key words:" urban dr?inage: storm ru- <br />noff: u~banisation: landuse chang~; <br />channel e~sion; erosion: floo~ con- <br />trol. <br /> <br />The establishment of urban subdivisions <br />creates increased flooding 5nd erosion <br />of natural channels downstrp.am: this <br />problem is solved, convention~lly, by <br />straighteni~Q, wid~ning or lininq such <br />channels. A less costly and mor~ envi- <br />ronmentally ~cceptable solution is to <br />control runoff within subdivisions so <br />that peak ou~flowing discnarg~s diff?r <br />little from those prior to development. <br />This approach, usinq retention basins <br />for tempo~ary storage of stor~ water, <br />is examined for the case of urban sub- <br />divisions in the A.delaide Hills. The <br />study presents technical information <br />which simplifies the joint tasks of <br />site selection and preliminary design <br />of the retention basins. <br /> <br />> <br /> <br />P.RNETT, R. et.al. 1973: -Diurnal flow and <br />quality patterns in a combined sewerage <br />system". Pacific Northwest Lab., Bat- <br />telle Memorial Inst., Richland, Wash. <br />Paper presented at 46th A.nnual Confer- <br />ence., Water POllution Control Federa- <br />tion, (Oct. 1973). <br /> <br />Key words: combined sewers: urban ru- <br />noff; water pollution. <br /> <br />, <br /> <br />^RON, G. et al. 1976; "Quantitative and <br />qualitative implications of urban storm <br />runoff abatement measures". <br />Pennsylvania State University, Univer- <br />sity Park, Pa. Institute for Research <br />on Land and Water Resources, Research <br />Publication No.97: l0lpp. <br /> <br />. <br /> <br />Key words: computer models: storm ru- <br />