Territory Stories

Alice Springs recreational dam hydrology report project 6

Details:

Title

Alice Springs recreational dam hydrology report project 6

Creator

Jackson, D.; Paige, D.

Collection

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

Date

1979-10-01

Notes

Date:1979-10

Language

English

Publisher name

Northern Territory Government

Place of publication

Darwin

Series

Report no. 12/1979

File type

application/pdf

Use

Attribution International 4.0 (CC BY 4.0)

Copyright owner

Northern Territory Government

License

https://creativecommons.org/licenses/by/4.0/

Parent handle

https://hdl.handle.net/10070/228346

Citation address

https://hdl.handle.net/10070/674275

Page content

Technical Report WRD79012 Viewed at 00:02:46 on 18/02/2010 Page 117 of 153. I I I I I I I I I I I I I I I I I I I I 22 4. DAM SIMULATION 4.1 General The behaviour of the dam was simulated with a computer programme. The programme simulates the behaviour of a dam by calculating levels, volumes and areas of the dam, on a monthly basis. The programme is given: (a) rainfall, (b) runoff from the catchment, (c) evaporatiqn and pan coefficients (d) draft and (e) area/volume/elevation data for the impoundment. The user specifies the starting level. If the dam overflows, the programme calculates the volume of water discharged by the spillway. At the end of the simUlation the programme prints the following statistics: for each month and the whole year, the number of months the area was between the areas given in the area/volume/elevation curves; and all durations at which the area was below a specified area .. Seepage was neglected in all simulations. Preliminary site investigations suggest that seepage is small. If this is subsequently proved to be false, the programme could be rerun with higher evaporation to allow for such. seepage losses. The programme was run with six constant drafts.: zero, 0.5, 1, 2, 3, 4 and 5 mega cubic metres/year. This was done to assess the ability of the storage to supplement Alice Springs Water Supply or to compensate for reduced yield from the town basin. The simUlation was run at three primary spillway levels: 591 metres, 592.5 metres and 594 metres A.H.D .. For all combinations, the historic and synthetic flows were used to simulate the behaviour.


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