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Alice Springs recreational dam hydrology report project 6



Alice Springs recreational dam hydrology report project 6


Jackson, D.; Paige, D.


E-Publications; E-Books; PublicationNT; Report no. 12/1979







Publisher name

Northern Territory Government

Place of publication



Report no. 12/1979

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Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government



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Technical Report WRD79012 Viewed at 00:02:46 on 18/02/2010 Page 106 of 153. I I I I I I I I I I I I I I I I I I I I 15 It is not known whether this is a characteristic of the catchment or if it is due to the sequence of flood events. It can be partly attributed to high transmission losses into alluvial aquifers below and adjacent to the stream. It should also be noted that, as indicated in section 2.3, there have been no high stage ratings at G.S. 006046 and G.S. 006126 and that in addition to the confidence limits shown in Figures 4 and 6 the accuracy of the rating curve extension must be considered. A comparison of the flood frequency relationships at G.S. 006009 predicted by different authors is shown in Table 7. The relationship predicted in this report agrees satisfactorily with the ~indings of these other studies. Table 7 COMPARISON OF PEAK DISCHARGES AT G.S. 006009 PREDICTED BY DIFFERENT AUTHORS. Return Period This Report Hua ----, C.M.& P. Reinhard. (years) 10 410 450 480 410 20 540 590 600 600 50 740 790 840 900 100 900 950 Figure 7 shows the flood frequency distribution for both G.S. 006046 and G.S. 006009 plotted on a log-log scale. An additional distribution has been shown in Figure7 to represent the flood frequency at the darnsite. The estimates of peak discharge for selected return periods at the damsite are shown in Table 8~

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