View
227
Download
6
Category
Preview:
Citation preview
General Overview of Integrated Hydrological Planning (IHP)
• New sub-directorate– Natural Hydrology; both groundwater and
surface water– Interaction between surface and groundwater– Conjunctive use– Climate change
Functions
• Support service to DWAF– CD:IWRP
– CD:IM
– RDM
• Management and guideline documents (management tools)– Hydrological planning and management
– Geohydrological management and planning
– Limited development of tools to support planning
PSP Projects• Groundwater Decision Tool (GDT) (DWAF
and WRC)
• Guideline document: Planning, development and management of dolomitic aquifers
• Guideline document: Artificial recharge as part of planning. (WRC and DWAF)
In-house projects
• Conjunctive use– Deep aquifers in the Eastern Limb of the BIC– Alluvial aquifers and off-channel storage
• Support to Internal Strategic Perspectives (ISPs)
• Albany Coast, ORWRDP, GWRA II
• GRIP (Limpopo and Eastern Cape)
Thank you
Exploration: What are we looking at ?Exploration: What are we looking at ?
1000
m
•Ore Body Exploration Drilling – can start 15years prior to mining and continuous till and during mining
•As deep as ore? Impacts on groundwater environmental or resource? Yes/No
NATURAL GROUNDWATER
?
EIA/EMP/EMPR (Resource assessment)
RLS
REEF
Geological structures
Magmatic intrusion
Mineral vs. Groundwater exploration
Borehole depth distribution % Cumulative Frequency of Diamond Core Drilling Depths vs. Air Percussion Water
Borehole Depths
0
200
400
600
800
1000
1200
1400
0.00 20.00 40.00 60.00 80.00 100.00 120.00
% Frequency
De
pth
Ra
ng
e (
m)
ExplorationBoreholes
Water relatedinvestigations
Impact? Or not?
South African Groundwater South African Groundwater Decision ToolDecision Tool
OverviewOverview
Aquifer Characterization GIS (ACGIS)
Groundwater Decision Tool (GDT)
Groundwater Dictionary
The South African Groundwater Decision Tool (SAGDT) will comprise of the integration of the
following applications:
ACGISACGIS
GDTGDT
Note: Not to scale
GIS
Area
Population
Borehole
Slug Test
CooperJ
Toxin
Scenario Object Tree
River
Boundary
River
Boundary
Toxin
Population
Slug Test
Cooper Jacob
Groundwater DictionaryGroundwater Dictionary
Target audience range from novice to expert user
Formal definitions, descriptions and layman’s terms
Definitions supported by pictures and animation
FET water network and development of education tool
Scenario WizardScenario Wizard
Typical example scenarios:
Reserve determination on quaternary / internal world level
Decanting of open cast / underground mine
Contamination of village water supply
etc…
1. Step-by-step guide in setting up pre-defined scenarios
2. Valuable software training tool
3. Aimed at the inexperienced user
Recommended