Transcript TMG Aquifer Feasibility Study

Ecological and Environmental Impacts
of Large-scale Groundwater
Development in the Table Mountain
Group (TMG) Aquifer System
Inaugural Steering Committee
Meeting
Database Development and Management
Umvoto
(ER Hay, CJH Hartnady, K Riemann, A Mlisa, B Mohammed)
5 May 2003
WRC Eco Project
CCT Feasibility & Pilot Project
TMG Target Generation
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Southern Target Region
 Target Zone K (Kogelberg)
 Target Zone H (Hottentots-Holland)
 Target Zone T (Theewaterskloof)
 Target Zone B (Brandvlei – south)
 Target Zone W (Wemmershoek)
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Northern Target Region
 Target Zone B (Brandvlei – north?)
 Target Zone V (Voelvlei)
 Target Zone A (Agter-Witzenberg ?)
TMG Target Zone Definition: Southern Area
Faults
Fractures
TMG Target Zone Definition: Northern area
Hydrogeological Data Acquisition:
Topography & DEM
Hydrogeological Data Acquisition:
DEM derivatives – Slope & Aspect
City of Cape Town
Hydrogeological Data Acquisition:
Drainage, Hydrology,
Hydroclimatology
Hydrogeological Data Acquisition:
Digital Geology
Geoinformatics:
Digital Structure Mapping
Geoinformatics:
Satellite Image Analysis – Land
Cover
NDVI processing
Bright-Green-Wet (RGB)
City of Cape Town
Geoinformatics:
Eco-Environmental Scoping
Theewaterskloof Dam
Fractured-Rock Field Laboratory Data
Blikhuis
Blikhuis Experimental Deep Drilling - BEDD
ICDP connection?
Blikhuis Data Sets
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Regional hydrogeological GIS (CAGE)
Quasi-3D deep groundwater flow model
Downhole colour video (to 300 m)
Geophysical well logging (to 800 m)
Hydraulic packer test data, etc.
Diamond-drill core (from 300 m to 800 m)
Database Collation
Data sets to be acquired and/or processed
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Terrestrial ecosystems data
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Aquatic ecosystem data
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See CAPE Project
See prior DWAF /Provincial Studies
See prior DWAF /Provincial Studies
Hydrological data – CCT project and other
Hydrocensus data – CCT Project
Monitoring data – WRC Eco + CCT Project and other
Downhole hydrogeological data
Pump test analysis
Results of Risk Analysis
Database Development
CURRENT GEOINFORMATICS ACTIVITY
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Trial preparation and presentation of TMG Project
data sets (CCT) using web-server technology
(TNTserver from Microimages, Inc) on Internet
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See http://www.umvoto.co.za
Preliminary collation of WRC Eco Project-specific
data sets and integration with CCT TMG Project
materials
Familiarization with SQL database concepts and
coordination with TNTmips data structures
Literature reviews and preparation of MSc thesis
project proposal (A Mlisa)
Ecological and Environmental Impacts
of Large-scale Groundwater
Development in the Table Mountain
Group (TMG) Aquifer System
Inaugural Steering Committee
Meeting
CAPACITY-BUILDING:
Ms Andiswa Mlisa & Ms Bulelwa Mohammed
Umvoto
5 May 2003
WRC Eco Project
Capacity-building Objective
 Investment in training of junior staff
from previously disadvantaged groups
(esp. Black females) in the application of
modern Geoinformatics Technology to
transdisciplinary problems in the
emerging field of Ecohydrogeology
WRC Eco Project
Andiswa Mlisa
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BSc, University of Fort Hare, 1997-1999
Majors: Computer Science, GIS, Geology
Telkom bursar (1999) and employment at
head office, Pretoria (2000)
Umvoto GIS operator and hydrogeologist-intraining, 2001-present
BSc (Hons, with distinction) in GIS and
Remote Sensing, University of Fort Hare,
2002/3 (part-time)
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Thesis on GIS and Remote Sensing applications
for cave distributions in the Kalk Bay Mountains
Andiswa Mlisa
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Currently accepted and registered (2003) for
MSc in the Department of Geographical
Science, University of Stellenbosch
Supervisor: Prof HL (Larry) Zietsman
Proposed Thesis Topic: “Geoinformatics
database design and management for spatial and
non-spatial applications, with particular reference to
hydrogeological studies in the Table Mountain Group
(TMG) aquifers, Western Cape Province, South
Africa”
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Purpose: Data collation, processing, access and
querying by transdisciplinary and multi-project users
in an Internet (web-based) environment
Andiswa Mlisa
(3)
GEOINFORMATICS CHALLENGES
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Unevenness of scale (overlay, correlation)
Differences of quality (validation, interpretation),
format, user software
Problems with time-series data, change- detection
and –monitoring
Maximising accessibility while maintaining data
integrity
Variation in presentation style between different
disciplines
Respecting copyright and protecting intellectual
property rights
Bulelwa Mohammed
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BSc, University of Fort Hare, 1998-2000
Majors: Geography and GIS
BSc (Hons) in GIS and Remote Sensing, UFH,
2002/3
Umvoto student internship, 2003
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Involvement in National Land Cover (NLC) 2000 project
(collaboration with A Mlisa)
GIS operator for City of Cape Town (CCT) TMG Project
(collaboration with A Mlisa)
Data collation, Processing, Map and diagram layout for
Umvoto project reports (collaboration with senior staff)
Potential MSc candidate in 2004
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Land use mapping, Vegetation vector change analysis and
correlation with earth processes
Digital terrain modelling and analysis for recharge-discharge
prediction and habitats
Capacity-building definition
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Investment in:
 Ability, acumen, capability,
cleverness, competence, intelligence,
potential, power, skill, talent, wit
or
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Investment in:
An appointment, duty, function, job,
office, position, post, role
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WRC Eco Project