Download - Day2 1 nijsten_dealing with data
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
Set-up of the presentation
1. Information Management System
2. Data processing and harmonisation
3. Internal communication
Information Management System
But it can be an information management system for interpreted data and documents
to support transboundary management
What will the GGIS NOT be ?
Purpose of Information Management System
•Collect, store, visualise and share structured information
in order to:•Support transboundary groundwater governance•Allow replication of the assessment
• Indicators• Parameters/variables• Tabular data• Thematic maps• Background maps•Documents• Images
And:• Meta information
What types of information can be stored?
Projections(WaterGap)
GGIS Functionalities
Public ViewOverlay layers of
information
• Point data
• Vectors
• Polygon data
• TIFF imagines
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
Data processing & Harmonisation
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
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
Harmonisation - Formations
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)
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)
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
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)• ….• ….
Harmonisation
May 2014
Stampriet ?!
October 2013
Stampriet
Kalahari-Karoo
South East Kalahari Karoo Basin
Harmonisation is all about developing a common language and terminology
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
Team cooperationInternal project communication
Project Workspace
Password protected
File exchangeExchange
information between country
expertsFollow up on
authors, versions, etc
Forum functionalities
Forum for discussions, sharing ideas, etc.
Forum functionalities
Community development
Sharing images and foto’s
24
Thank you
Visualising:Maps with a clear message
Visualising:Maps with a clear message
Visualising:Conceptualising simplified maps
Visualising: Cross sections
Visualising:Cross-sections
Visualising: Simplified diagrams with a message
Visualising: Simplified diagrams with a message
Visualising: Block diagrams with a
message
Visualising: Block diagrams with a message