Development of a Groundwater Model for the Western Davenport Plains
Knapton, Anthony; CloudGMS Pty Ltd
Northern Territory. Department of Environment, Parks and Water Security
E-Publications; E-Books; PublicationNT; WRD Technical Report 27/2017
2018-03
Western Davenport Water Control District
CloudGMS has been commissioned by DENR to develop a numerical groundwater model of the aquifers within the central area of the WDWCD to improve confidence in the sustainability of the groundwater resources, as this is the area within the WCD with greatest potential for intensive development.
Made available by via Publications (Legal Deposit) Act 2004 (NT); Prepared for Dept Environment and Natural resources
Executive summary -- 1 Background -- 2 Physical -- 3 Available data -- 4 Conceptual model -- 5 Model design & construction -- 6 Parameter estimation -- 7 Water balances -- 8 Sensitivity analysis -- 9 Predictive scenarios -- 10 Conclusions -- 11 Reference -- 12 Document history and version control -- Appendix A - Groundwater level hydrographs - Appendix B - Alek range horticultural farm sub-regional modelling
English
Groundwater; Northern Territory; Western Davenport Water Control District; Conceptual mode
Northern Territory Governmnet
Palmerston
version 2.0
WRD Technical Report 27/2017
ix, 127 pages : colour illustration and maps ; 30 cm
application/pdf
9781743502976
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://creativecommons.org/licenses/by/4.0/
https://hdl.handle.net/10070/842058 [LANT E-Publications: Development of a Groundwater Model for the Western Davenport Plains, version 1.1]
https://hdl.handle.net/10070/858845
https://hdl.handle.net/10070/858846
Western Davenport WCD Groundwater Model (v2.0) Model Design & Construction CloudGMS 56 Figure 5-1 Schematic of the processes in MIKE SHE, including the available numeric engines for each process. The arrows show the available exchange pathways for water between modules (Graham and Butts, 2005). The flexibility in MIKE SHE's process-based framework allows each process to be solved at its own relevant spatial and temporal scale. For example, evapotranspiration varies over the day and surface flows respond quickly to rainfall events, whereas groundwater reacts much slower. Time scales are independent and automatically controlled. Simpler processes are faster and require less data. In contrast, many integrated hydrologic codes (e.g. MODFLOW HMS and Hydrogeosphere) solve all the hydrologic processes implicitly at a uniform time step, which can lead to intensive computational effort for watershed scale models. Benefits of the MIKE SHE platform include: Physically based model Conservation of mass and momentum Processes can be linked/unlinked with each other easily Modular structure Fully distributed and integrated Used for source water protection analysis (Graham et al, 2005) 5.1.2. Model domain and grid The importance of surface water flow to the recharge processes, which were identified in the conceptual model, resulted in the model domain being coincident with the surface water catchment