Modelling dry season flows and predicting the impact of water extraction of flagship species
Georges, Aurthur; Webster, Ian; Guarino, Fiorenzo; Jolly, Peter; Thoms, Martin; Doody, Sean; CRC for Freshwater Ecology (Australia); University of Canberra. Applied Ecology Research Group
E-Publications; E-Books; PublicationNT; 57/2002; National River health program
2002-11-20
Daly River
The aim of this project is to contribute to recommendations on environmental flows to ensure that they are consistent with maintaining the biota of the Daly River, given competing demands of agriculture, recreation and tourism, conservation and Aboriginal culture. Our focus is on flow, connectivity and water temperatures.
Made available by via Publications (Legal Deposit) Act 2004 (NT); Submitted to the Northern Territory. Department of Infrastructure Planning and Environment
1. Project Details -- 2. Executive Summary -- 3. Interpretation of the Brief -- 4. Variation of the Brief -- 5. Background -- 6. The Daly Drainage -- 7. The Pig-nosed turtle -- 8. Analysis of Historical Flow Data -- 9. Analysis of Contemporary Flow Data -- 10. Modelling Flow Reduction -- 11. Water Temperature Versus Flow -- 12. Impact on Flagship Species -- 13. References
English
Environmental Flows; Modelling; Biota
Northern Territory Government
Palmerston
Final Report
57/2002; National River health program
75 pages ; 30 cm
application/pdf
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://creativecommons.org/licenses/by/4.0/
https://hdl.handle.net/10070/885434
https://hdl.handle.net/10070/885435
31 Table 4. Flow measured at control points on the Daly River from Dorisvale Crossing (Stn 1) to Cattle Creek (Stn 26). Contribution to flow is greatest in the 9 km between Hot Spring (Stn 10) and Black Bull Yard (Stn 15). Station Distance June 3 September 3 1 0.0 27.4 10.6 2 5.3 28.1 12.3 3 9.2 . 12.4 4 11.2 29.2 13.1 5 13.2 29.8 14.3 6 13.6 29.9 14.3 7 13.8 . 13.6 8 18.3 30.3 13.7 9 22.6 29.6 13.9 10 24.4 29.2 15.1 11 27.7 30.6 16.0 12 25.6 30.1 17.0 13 31.1 . 17.6 14 32.3 . 19.7 15 33.4 38.2 22.1 17 43.6 38.2 23.7 18 44.9 . 23.9 19 46.7 38.4 24.2 20 48.6 . 24.6 21 53.2 39.7 24.8 22 54.2 39.7 25.3 23 55.9 40.9 25.5 25 67.0 41.5 26.0 26 73.3 42.4 27.2 Surface flow inputs included Bradshaw Creek, which discharged 1.06 cumecs into the river, contributing substantially to the nett increase in flow between Dorisvale Crossing and control point 10 (Hot Spring) of only 1.8 cumecs. A substantial hot spring at control point 10 discharged 0.4 cumecs into the river, and Stray Creek discharged 2.7 cumecs. The remaining nett increase of 5.9 cumecs between control point 10 and control point 15 was from numerous small non-specific point discharges and diffuse discharge. On September 3, 2001, flow at Dorisvale Crossing was 10.6 cumecs and at Oolloo Crossing was 25.9 cumecs. There was a general base increase in flow of 0.14 cumec per km downstream from Dorisvale Crossing, punctuated by a much more substantial input of 0.79 cumecs per km between control point 10 (Hot Spring) and 15 (Black Bull Yard). A total of