Alice Springs recreational dam hydrology report project 6
Jackson, D.; Paige, D.
E-Publications; E-Books; PublicationNT; Report no. 12/1979
1979-10-01
Date:1979-10
English
Northern Territory Government
Darwin
Report no. 12/1979
application/pdf
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://creativecommons.org/licenses/by/4.0/
https://hdl.handle.net/10070/228346
https://hdl.handle.net/10070/674275
Technical Report WRD79012 Viewed at 00:02:46 on 18/02/2010 Page 139 of 153. I I I I I I I I I I I I I I I I 37 3 ANALYSIS 3.1 Introduction A power relationship between sediment flow rate and stream discharge was used to estimate monthly and annual sediment loads~ A trap efficienty model was used to estimate the life of the darn. The feasibility of a sediment trap immediately upstream of the reservoir to trap bed load was examined. A computer model for transient scour and deposition was used to examine the effects of downstream scour. Several problems were encountered in using this model and its value was in giving an overall impression of where scour would occur for various downstream controls rather than giving absolute depths of scour. 3.2 Transport Relationships Both floods in 1965 included flow at G.S .. 006047. Table 1 shows estimated flow volumes at gauging stations. Table 1 ESTIMATED FLOW VOLUMES (1965 STORMS) Gauging Station 7/3/65 G. S. 006009 G.S. 006046 G.S. 006047 0.83 0.45 0.13 Mm 3 18-19/3/65 0.69 0.51 0.34 It is known flow occured for the 1979 storms at each of the gauging stations G.S. 006009, G.S. 006046, G.S. 006 047, but flow volumes are not yet available.