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 98 of 153. I I I I I I I I I I '. I I I I I I I I I 11 Table 3 COMPARISON OF RESERVOIRS Location Lat. (0., 1 l'.!Qng (OE) Aj2j2rox. e1ev. (m) A.H.D. Rifle Creek 20 0 57' 139 0 35' 420 Alice Springs 23 0 43' 133 0 50' 590 Figure Ig of Garrett's and HOY's paper gives monthly pan coefficients for the Rifle Creek Reservoir for lake depths of 5 metres and 20 metres. The average of the pan coefficients for these two depths has been used. Monthly evaporation for the Alice Springs dam'is shown in Table 4. Table 4 ESTIMATED RESERVOIR EVAPORATION Area (ha) 190 100 Month Class A Pan Pan Reservoir evaEoration Coefficients eva;Eoration (mm) (mm) January 372 .80 298 February 328 .76 249 March 285 .71 202 April 209 .72 150 May 142 .72 102 June 104 .59 61 July 107 .51 55 August 145 .52 75 September 212 .51 108 October 274 .58 159 November 313 .56 175 December 358 .67 240 Year Total 2849 0.64 (av) 1923 2.5 Impoundment Data The relationships between stage, surface area and dam capacity are shown in Figure 3. These relationships are based on 1:2400 photograrnmetric contour maps. Forbes (1965) determined similar curves for the damsite from 1:2400 stadia survey contour maps. The relationships shown in Figure 3 and those derived by Forbes are within 5% of each other.