Published Resources Details
Journal Article
- Title
- Hydrology in the Snowy Mountains area
- In
- Journal of the Institution of Engineers, Australia
- Imprint
- vol. 28, no. 3, Mar 1956, pp. 51-66
- ISBN/ISSN
- 0020-3319
- Description
This paper, No.1228, is to be presented before the Engineering Conference, 1956, to be held in Canberra from 16th to 21st April, 1956.
Mr. E. B. Pender BE ME AMIEAust, the senior author, is Field Investigations Engineer, Snowy Mountains Hydro-electric Authority. Mr. D. T. Walsh BE AMIEAust is Engineer for Hydrology and Mr. D. Anderson BA BAI AMIEAust, is Field Hydrographic Engineer of that Authority.
[This paper was awarded the Warren Memorial Prize 1956.]
- Abstract
Part I - General investigation: This part discusses the determination of yield as the basis for design, the investigation of floods and siltation, and the part of hydrology in hydro-electric operation.
Part II - Hydrographic operation: This part discusses the methods used in order to increase the amount of stream flow data in the Snowy Mountains Area as rapidly as possible. These methods fall under two main heads - design and construction of gauging stations with stable control structures, and control of rating in order to ensure that a high percentage of gaugings are effective in producing the required rating curves.
Part III - Analytical hydrology: ln the work of the Authority, the name Hydrology Analysis has been given to the process of a statistical or estimative character which lies between the stream gauging and other hydrologic records and the figures which are ultimately adopted for use in design.
The dominating feature of the Authority's hydrology analysis work has been the inadequacy of recorded data available, in relation to the need to estimate design yields and floods at the numerous intake and design points.Part IV - Future yield augmentation: This section is an attempt to look forward. Much of it must, therefore, necessarily be speculative. Mention has been made of the substantial advantages in programming the power output of the run-of-the-river station which may be obtained if reliable forecasts of flow are available. This part of an interesting aspect-that of yield augmentation. Once dams, tunnels and power stations have been installed then, if they have been sized to operate at fractional capacity factors, there is much to be gained in income by any measures which can increase the yield and result in a supply of water above that assumed for economic justification in building the station. Four techniques which are at present being studied are dealt with briefly here.- ยท
1. Hydrological Forecasting;
2. Artificial Stimulation of Precipitation;
3. Anti-Evaporation;
4. Catchment Management;