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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







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Northern Territory Government

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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 29 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 adjacenL to the stream. lL 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 .. '11hc relationship predicted ill this report agrees satisfactorily with the findings of these other studies. Table 7 COMPARISON OF PEAK DISCHARGES AT G.S. 006009 PREDICTED BY DIFFERENT AUTHORS. Ret ur n Period Th is Report Huq C.M.& P . Reinhard~ --" (yea.rs) 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 adctitional distribution has been shown ill Figure? to represent the flood frequency at the darosite. The estimates of peak discharge for selected return periods at the damsite are shown in Table 8~

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