4.3.4 Spatial Data Integration 1 UPA Package 4, Module 3 SPATIAL DATA INTEGRATION.

14.3.4 Spatial Data Integration

UPA Package 4, Module 3

SPATIAL DATA INTEGRATION


Spatial Data Integration

• Project and Process GIS• Spatial Data Integration and Spatial Data Infrastructure (SDI)• Implementation of a local SDI and Local Urban

Observatories• Introduction exercise 4.3.4


Project and Process GIS

Project GIS• Examples: research, pilot projects, ad-hoc, lack of

continuation, stand-alone GIS, GIS at operational level, mushrooming of intra-institutional GIS projects, data duplication

• BUT clear focus and effective to reach project objectivesProcess GIS• Clear vision, benefits for the organization, stability, capability,

realistic approach (operational GIS first, analytical GIS second), reliable large (national) spatial and other data producers (mapping, cadastre, statistics)

• Institutional embedding, stable institutional/political environment


Project and Process GIS

Project GIS

Process GIS


Compatibility of Databases


Spatial Data Infrastructure

• (Local) Spatial Data InfrastructureA combination of technologies, policies and inter-institutional relations to facilitate access to spatial datawww.gsdi.org

• (GEO)Information and Communication TechnologyPeople Operational, Analytical, Management, StrategyData maps, databases, compatibility, up-to-dateTechnology Hard-Software, networks, support Institutions Collaboration, data sharing, political /

institutional stability$ Benefits, costs, cost reduction, revenue

generation, efficiency gains



Application storage

Clearin

gh

ou

se Fu

nctio

n

Geospatial DataService Centre

(for this domain)Integrity:Harmonization/standardsGDI administration/operationsPolicy implementationOperational:Transformation servicesAdvisory services

InformationPolicy

Direction

GD

SC

s for o

ther d

om

ains

Framework Data

(Foundation Data)

Real estatemanagement

Physicalplanning

Environmentprotection

Other domainapplication

Domain Applicaiton

Other Data Providers

Administrativeboundary

Transportation

Hydrogrphy

Cadastral data

Land use/cover

Geodetic control

DEM

Orthoimagery

Topographic template

Geographic name



Missionspecific Data

Framework Data

Foundation Data

Problem solving:site selection, traffic control, settlement upgrade...

Discipline oriented:soil, hydrology, vegetation...

Common used:geodetic control, digital ortho-imagery, elevation,

transportation, hydrography, Cadastre

Data User Data Content


Model Intranet GIS Arnhem


Gradual Development of a GIS

Setting up the system:1 Equipment2 Mapping Group

3 Inventory

5 Thematic Maps 6 Suitability / Sensitivity Maps

KISARAWE

BAGAMOYO

KIBAHA

6 40

7 00

39 00 39 20

Legend

Highly Available

Moderately Available IIA

Less available

Not suitable

in km / 1:n

1062

Dar es Salaam - Suitability for Urban Agriculture

EDar es Salaam City Commission (DCC)

Sustainable Dar es Salaam Project (SDP)Source: xxx

January 1998uasuit.prj

KISARAWE

BAGAMOYO

KIBAHA

6 40

7 00

39 00 39 20

Legend

Highly Available


Less available

Not suitable

in km / 1:n

1062





4 Basic Map

KISARAWE

BAGAMOYO

KIBAHA

6 40

7 00

39 00 39 20

Legend

Seasonal Rivers & Seasonal Streams

Main and Minor Roads

Railway

in km / 1:n

1062

Dar es Salaam



mo 1997xy.prj

KISARAWE

BAGAMOYO

KIBAHA

6 40

7 00

39 00 39 20

Legend

Seasonal Rivers & Seasonal Streams

Main and Minor Roads

Railway

in km / 1:n

1062

Dar es Salaam



mo 1997xy.prj

7 Overlay

Project Design

Site Selection

Development Pattern8 Public Information

Exhibitions

The Web

Publications

9 MaintainingUpdating

Training

Institutionalisation


Spatial Data Integration

The base/topographical map is the base layer for other thematic GIS layers (see also foundation and framework data

• Basic landforms• Grid lines• Road network• Hydrological network

common cartographic standards(scale, legend, and layout)


Thematic Maps

Thematic maps are…

• showing strictly factual information• derived from research


Thematic Map

Malaria Prone Areas


Suitability / Sensitivity Maps

• defines areas suitable for certain purposes according to “conditions” and “rules”

• provides a number of optionsKISARAWE

BAGAMOYO

KIBAHA

6 40

7 00

39 00 39 20

Legend

Highly Available


Less available

Not suitable

in km / 1:n

1062





KISARAWE

BAGAMOYO

KIBAHA

6 40

7 00

39 00 39 20

Legend

Highly Available


Less available

Not suitable

in km / 1:n

1062





ClassArea

Ha

High suitable 1,467Moderately suitable 3,170Less suitable 1,118Constraints areas 8,564Research area 5,755Total study area 14,319


Implementation of Local SDI

• Step-by-step (set priorities)• Clear outputs and results, time frame• Institutional (at various levels) and political support

Gradual and similar development of:• Human Capacity (Humanware)• Data (Infoware)• Technology (Technoware) • Institutional (at various levels) and political support (Orgware)


humanware

orgware

technoware

infoware


Exercise 4.3.4

• Data Aggregation of Single data sets• Integration of National Statistical and Local data sets• Integration of Neighborhoods with postcode areas• Disaggregation of variables from neighborhood to postcode

level• Visualization of aggregation, integration and disaggregation


Spatial Data Incompatibility


Which is the correct map?


Exercise 4.3.4

Part of the Municipality of Enschede, showing the boundaries of the neighbourhoods (thick lines) and postcode 5 level boundaries (thin lines)Boundaries don’t coincide

Problem: how to disaggregate data from the neighbourhood level to the postcode level


Exercise 4.3.3

Part of the Municipality of Enschede, showing the boundaries of the neighbourhoods (thin lines) and postcode 4 level boundaries (thick lines)


Most Frequent Problems in the Development of a GIS

4.3.4 Spatial Data Integration 1 UPA Package 4, Module 3 SPATIAL DATA INTEGRATION.

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Transcript of 4.3.4 Spatial Data Integration 1 UPA Package 4, Module 3 SPATIAL DATA INTEGRATION.