The report aims to evaluate existing methodologies to identify the most practical approaches for estimating baseflow in river basins of the monsoonal Top End of the Northern Territory, where stream hydrographs are dominated by extreme wet season flows. The daily baseflow datasets produced in this study are intended to support water management strategies, maintain minimum instream flows for environmental purposes, and inform hydrological modelling and water allocation planning within the Adelaide River catchment.,
Notes
Made available by via Publications (Legal Deposit) Act 2004 (NT),
Table of contents
Acronyms 3
Glossary 4
Introduction 11
1.1 Purpose 11
1.2 Baseflow and baseflow analyses 11
1.3 Study area 13
2. Data 15
2.1 G8170002 15
2.2 G8170006 17
2.3 G8170008 18
2.4 G8170033 18
2.5 G8170062 20
2.6 G8170065 21
2.7 G8170066 22
2.8 G8170076 23
2.9 G8170085 24
2.10 G8170089 24
2.11 G8170094 24
2.12 G8170240 25
2.13 Aquifers 26
3. Methodologies 28
3.1 Missing data 28
3.2 Baseflow separation techniques and methods 29
3.3 Base flow Index 31
4. Results and discussions 31
4.1 Recession analysis method 31
4.2 FDC method 33
4.3 Baseflow separation results 35
4.3.1. Baseflow separation at G8170002 40
4.3.2. Baseflow separation at G8170006 40
4.3.3. Baseflow Separation for G8170008 41
4.3.4. Baseflow separation for G8170033 42
4.3.5. Baseflow separation for G8170062 43
4.3.6. Baseflow separation for G8170065 43
4.3.7. Baseflow separation for G8170066 44
4.3.8. Baseflow separation for G8170076 45
4.3.9. Baseflow separation for G8170085 45
4.3.10. Baseflow Separation for G8170089 46
4.3.11. Baseflow Separation for Gauging Station G8170094 47
4.3.12. Baseflow separation for gauging G8170240 48
4.4 Baseflow at G8170002 48
5. Conclusions and Recommendations 51
5.1 Conclusion 51
5.2 Limitations and Recommendations 52
6. References 53
Appendix A: Baseflow separation results using RDF 3P technique 56
Appendix B: Baseflow separation hydrographs for G8170002 79
Appendix C: Baseflow separation hydrographs for G8170006 93
Appendix D: Baseflow separation hydrographs for G8170008 98
Appendix E: Baseflow separation hydrographs for G8170033 112
Appendix F: Baseflow separation hydrographs for G8170062 117
Appendix G: Baseflow separation hydrographs for G8170065 122
Appendix H: Baseflow separation hydrographs for G8170066 131
Appendix I: Baseflow separation hydrographs for G8170076 149
Appendix J: Baseflow separation hydrographs for G8170085 154
Appendix K: Baseflow separation hydrographs for G8170089 159
Appendix L: Baseflow separation hydrographs for G8170094 164
Appendix M: Baseflow separation hydrographs for G8170240 169,
Language
English,
Subject
Adelaide River, Baseflow, Streamflow, Hydogeology, Hydrographs,
Publisher name
Northern Territory Government,
Water Resources Division, Department of Lands, Planning and Environment,