day2 1 nijsten_dealing with data
DESCRIPTION
Day2 1 nijstenTRANSCRIPT
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Geert-Jan Nijsten - IGRAC
21 May 2014Windhoek
Stampriet – Kalahari/Karoo Aquifer Case StudyTechnical Seminar on Project Implementation
Dealing with dataInformation Management System
Processing & Harmonisation
Team cooperation
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Set-up of the presentation
1. Information Management System
2. Data processing and harmonisation
3. Internal communication
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Information Management System
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But it can be an information management system for interpreted data and documents
to support transboundary management
What will the GGIS NOT be ?
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Purpose of Information Management System
•Collect, store, visualise and share structured information
in order to:•Support transboundary groundwater governance•Allow replication of the assessment
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• Indicators• Parameters/variables• Tabular data• Thematic maps• Background maps•Documents• Images
And:• Meta information
What types of information can be stored?
Projections(WaterGap)
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GGIS Functionalities
Public ViewOverlay layers of
information
• Point data
• Vectors
• Polygon data
• TIFF imagines
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Actors and roles in Data Flow
GGIS
National Experts (NE)
Regional coordinators (RC)
IGRAC - UNESCO
• Data & information collection
• Data processing and harmonisation
• Create visuals
• Coordinate & assist NE
• Facilitate Transboundary cooperation, data harmonisation and creation of visuals
• IMS Development and maintenance
• Guidelines and data protocols
• Technical assistance to NE’s
• Global Groundwater Information
System
Management tool for consultative body
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Data processing & Harmonisation
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Structured data
Standardised formats:
• Digital maps• Tables (excel)• Text
Data collection
• Paper maps• Paper reports
Text, tabular data, images, maps
• Digital dataTables, maps, reports
Data Processing
From ‘raw’ data to consistently structured data
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17°E 18°E 19°E 20°E 21°E 22°E 23°E 24°E 25°E 26°E
-28°S
-27°S
-26°S
-25°S
-24°S
-23°S
-22°SW indhoek
Stampriet
Gochas
Gobabis
Aminius
Aroab Bokspits
HukuntsiKang
Ncojane
Tsabong
W erdaGoodhope
Mmabatho
Kuruman
Vanzylsrus
Tosca
450
1,000
2,000
5,000
10,000
20,000
50,000
TDSmg/l
From ‘technical’ maps to simplified thematic
maps
Data Processing
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Harmonisation - Formations
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Harmonisation: Agree on units
0 0.5 1 1.5 2 2.510Log (Yield) m 3/h
0
10
20
30
40
50
60
70
80
90
100
Pro
bab
ilit
y %
Dolom ite KanyeOlifantshoek BotswanaBasalt SAB
(69)(16)
(13)
0 0.5 1 1.5 2 2.510Log (Yield) m 3/h
0
10
20
30
40
50
60
70
80
90
100
Pro
bab
ilit
y %
Kalahari SABKalahari Botswana
(38)
(37)
Borehole yieldm3/hr (Namibia) , l/s (South
Africa)
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1 TBA
2 Countrie
s
•Countries
need consensus
on delineation of TBA
2 data sets
• National
data sets may differ
in forma
t
Harmonised data
•Harmonised TBA map, based on national data sets.
Harmonisation – map information
Transboundary aquifer
For example information onAquifer productivity (Namibia) andGroundwater potential (Botswana)
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WHO1993
Botswana, 2000
Guide-line
Value
Class 1 Ideal
Class 2 Acceptable
Class 3 Max.Allowable
mg/l mg/l mg/l mg/l
Namibia, 1991 South Africa, 2006Group AExcellent
Group BGood
Group CLowHealthRisk
Group DUnsuitable
Class IOperational
Class IIMax allowable forlimited duration
mg/l mg/l mg/l mg/l mg/l mg/l
Harmonisation – Agree on classifications
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Data processing & Harmonisation
Agree on:• classifications (suitability for water consumption, land use types, water
use types, stratigraphy, etc. etc.)
•map scale and map projection• areal sub-divisions for reporting (eg report per local
municipality or per district?)
• units• table formats• report format• additions/modifications to the methodology (eg:
Groundwater community management)• ….• ….
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Harmonisation
May 2014
Stampriet ?!
October 2013
Stampriet
Kalahari-Karoo
South East Kalahari Karoo Basin
Harmonisation is all about developing a common language and terminology
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18
Project workflow / tasks
1. Data collection (incl. data entry and digitising of relevant information)
2. Taking stock (which data are available and which
not) and fine-tuning of methodology (data & indicators)
3. Structuring of data (data processing)
4. Harmonising data in a consistent way across the aquifer
5. Producing outputs: Indicators, thematic maps, overview tables, illustrative graphs, conceptual model, assessment report
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Team cooperationInternal project communication
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Project Workspace
Password protected
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File exchangeExchange
information between country
expertsFollow up on
authors, versions, etc
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Forum functionalities
Forum for discussions, sharing ideas, etc.
Forum functionalities
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Community development
Sharing images and foto’s
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24
Thank you
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Visualising:Maps with a clear message
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Visualising:Maps with a clear message
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Visualising:Conceptualising simplified maps
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Visualising: Cross sections
Visualising:Cross-sections
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Visualising: Simplified diagrams with a message
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Visualising: Simplified diagrams with a message
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Visualising: Block diagrams with a
message
Visualising: Block diagrams with a message