... SATURATION EXCESS FLOW NOMOGRAPHS DISCHARGES PREDICTION PARAMETERS OPTIMISATION EXPERIMENTS CATCHMENTS Proc. Instn Cio. Engrs, Part 2, 1991, 91, Sept. 593-602 PAPER 9717 Dimensionless hillslopehydrology WATER BOARD A. CALVER, BSc, PhD, MIWEM* W. L. WOOD, MA, PhD? Slope discharge and its...

...R S MCKENZIE; R B ALLEN © Thomas Telford and ICE 1990 BKS WATER RESOURCES PRETORIA MODERN WATER RESOURCES ASSESSMENT TECHNIQUES RIVERS WATER SUPPLY DEMAND CATCHMENTS ADJACENT YIELD SYSTEMS PLANNING TECHNIQUES METHODS COMPUTERS MODELS RESOURCES SUPPLY ALLOCATION...

... report,' and a halt should be called. Any method of flood estimation should directly reflect the essential characteristics of the catchment for which there can be no substitute. These were discussed in detail at the 1924 Conferenceat the Institutionof Civil Engineers 56. Few workers in the field would...

...DR ARCHER; PS KELWAY; DB BOORMAN © Thomas Telford and ICE 1988 COMPUTERS SYSTEMS FLOODS ESTIMATING EVALUATION RAINFALL RUNOFF METHODS HYDROLOGY RESEARCH PROJECTS REGIONAL CATCHMENTS ENGLAND UK Proc. Instn Ciu.Engrs, Part 2,1988,85,June, 389-390 DISCUSSION O N...

...DR ARCHER; PS KELWAY; FLOWPRED © Thomas Telford and ICE 1987 NORTHUMBRIAN WATER VOICE SYSTEMS INTERNATIONAL COMPUTERS SYSTEMS FLOODS ESTIMATING METHODS EVALUATION RAINFALL RUNOFF DISCHARGES DESIGN PARAMETERS RESERVOIRS GRIDS ESTIMATES CATCHMENTS STORMS STORMWATER...

... to a detailed upstream catchment model. It requires a downstream measured hydrograph, such as would be recorded at the inlet to a sewage treatment works. Notation i hydrograph i Qi flow rate Q p i peak flow rate t , time tpi time to hydrograph peak DWF dry weather flow Introduction In recent years there hasbeen...

...-of-river hydro stations, unconnected with a regional electricity grid, where the output was used mainly for crop-processing. This Technical Note describes an empirical method for synthesizing monthly FDCs from limited hydrological data for small-catchment ungauged watercourses. The method involves...

... catchment characteristics is considered. The two methods of FDC synthesis are tested on independent data, the LFSR method performing slightly better than the catchment equations at Q,, flows but less well at flows above Q,, . Introduction Among its several other recommendations, the Instituotef Hydrology s...

...JM PARKER; SK BOOTH; SSD FOSTER © Thomas Telford and ICE 1987 BRITISH GEOLOGICAL SURVEY ANGLIAN WATER CHALK PENETRATION NITRATES POLLUTION SOILS AGRICULTURE GROUNDWATER DENITRIFICATION AQUIFERS CATCHMENTS WATER SUPPLY SUPPLY WATER BOREHOLES QUALITY RESEARCH CONTROL...

...DC BLACK; MD MOHD.NOR; BN GUNTER; RB BULMAN; JR DAVIES © Thomas Telford and ICE 1986 BASINS RAINFALL RUNOFF FLOODS CATCHMENTS HYDROLOGY MODELS ROUTING MITIGATION TROPICAL DESIGN VALUE CALIBRATION PARAMETERS METHODS RIVERS ANALYSIS FREQUENCY SOILS MOISTURE BATU...

...D J COCHRANE © Thomas Telford and ICE 1986 BRITISH WATERWAYS BOARD MORRISON CONSTRUCTION LTD CANALS LOCKS REPAIRS SILLS STAIRCASES DETERIORATION REPLACEMENT CONCRETE LEVELS LOW WATER COFFERDAMS CATCHMENTS DRY RUNOFF WORKS HEAT GENERATION TEMPERATURE...

...DC BLACK; MD MOHD.NOR; BN GUNTER © Thomas Telford and ICE 1986 SNOWY MOUNTAINS ENGINEERING CORPORATION MINISTRY OF AGRICULTURE, KUALA LUMPUR RAINFALL RUNOFF FLOODS ROUTING MODELS TROPICAL CATCHMENTS STORMWATER CALIBRATION TESTING DATA HISTORICAL PARAMETERS VALUE...

... to Tynewydd? The mean speed of flood travel in the lower halfof the catchment appears to be about 2.1 1 m/s but in the upper half only about 0.85 m/s. However, the mainstream slope in the upper half is about eight times that of the lower reach. The lags inferred from the unit hydrograph and estimated from...

...DDA PIESOLD; J TATTERSFIELD; CW HODGSON; RB BULMAN; GP SIMS KENYA AFRICA © Thomas Telford and ICE 1985 DAMS RESERVOIRS CATCHMENTS AREAS FLOODS DESIGN SPILLWAYS EXTRAPOLATION ESTIMATING METHODS SLABS MOVEMENT CONDUITS LINERS COSTS SURGES SURGES CHAMBERS MASINGA...

... enhance the techniquwehich has suffered further from lack of discrimination in the selection of variables and choice of the form of essential factors. 44. Theduration of the rainfall factor selected shouldapproximatetothe critical duration of the catchment area under study. Variations in theaverage annual...

...DW REED; FORTRAN © Thomas Telford and ICE 1985 INSTITUTE OF HYDROLOGY WALLINGFORD EXTENSIONS S CURVES METHODS CURVES UNITS HYDROGRAPHS TRANSFORMATION TECHNIQUES RAINFALL RIVERS SYNTHESIS ALGORITHMS SITES CATCHMENTS RESPONSES STORMS FLOODS ESTIMATING OSCULATORY...

... Research Council s Flood Studies Report (1975) to predict mean annual flood Q from catchment characteristics is applied to datain Northern Ireland, a region not used in the equation s original calibration. Using data collected between 1970 and 1982 the equation underpredicts Q at all 17 stations examined...

... on the catchment was 4 mm, and yetin thecentral 12 hours of the flood the run-off volume was 28 mm. On the neighbouring Coquet catchment thehigh,est recorded floodlevel was notedand on a tributarwyithin the catchment a 5 m high dam was breached as flood waters overtopped the embankment. Mr Archer reported...

... FLOODS CATCHMENTS SYSTEMS POLICIES CHARTS UK Proc. Instn Ciu.Engrs, Part 1, 1984,76, Aug., 779-783 INFORMALDISCUSSION WATER ENGINEERINGGROUP Hydrological data atWallingford-collection, archiving and application Introducer J. C. RODDA, PhDD, Sc, MIWES, FRMetS* Reporter T. E. Evans, MSc, BSc...

...HS WHEATER; NC BELL FLOODS STUDIES DEPTH DURATION FREQUENCY RAINFALL STATIONS METHODS DISTRIBUTION ANALYSIS DATA STORMS CATCHMENTS SIMULATION RUNOFF MODELS KINEMATICS FLOW CHANNELS WAVES OVERLAND APPROXIMATION RESPONSES PARAMETERS SENSITIVITY HYDROLOGY HYDROGRAPHS...