unsd-celade regional workshop on census cartography for the 2010 latin america’s census round...

UNSD-CELADE Regional Workshop on Census Cartography for the 2010 Latin America’s census round

Census Cartography:

Organizational and Institutional Issues


Overview

From Census mapping to Census Geography: Census Cartography Process

Building a geospatial Infrastructure: In-house Cartography/GIS unit Technical and human capacities Standards NSDI

Challenges Conclusion


Census Process

Census(Enumeration: maps support data collection, monitor)

Post-Census(Post-enumeration: analyze, display and disseminate)

Pre-Census(Pre-enumeration:maps ensure consistency, prepare)


Pre-enumeration (EA Map Production)

Census DatabaseDigital MappingGISSatellite ImageryAerial Photo.GPS

Pre-enumeration stagePre-enumeration stage

Large-scale mapsEA unitsGeocoding System


Census Enumeration Stage


Enumeration (Census Data Collection)

Large-scale mapsEA unitsGeocoding SystemCensus DatabaseDigital MappingGISSatellite ImageryAerial Photo.GPS

GIS/GPS/PDAsDigital Mapping

Large-scale mapsLarge & mid-scale for sup.Mid- & small-scale for manag. Admin./Statistical Units


Post-enumeration Stage


Enumeration (Census Data Collection)

Post-enumeration (Census Data Dissemination)

Large-scale mapsEA unitsGeocoding SystemCensus DatabaseDigital MappingGISSatellite ImageryAerial Photo.GPS

Large-scale mapsLarge & mid-scale for sup.Mid- & small-scale for manag.Admin./Statistical UnitsGPSGIS

Digital Mapping

Mid- & small-scale mapsEA updateStatistical DatabaseDatabases (Maintenance)GISInternet MappingDigital Mapping


Geospatial Technologies at all stages

EAs Units Administrative and Reporting Units

(Pre-enumeration) (Enumeration) (Post-enumeration)

GIS

Census Database

Satellite Imagery

GPS

Aerial Photo.

Digital Mapping

GIS

Digital Mapping

GPS

Statistical Database

Databases Maintenance

GIS

Internet Mapping


Census Geography Programme: a continuous process

The recommendations derived from our EGM and Workshops on GIS and census mapping emphasized the need for countries to consider the census geography programme as a continuous process, rather than the sequential mapping and dissemination operations.

It was also emphasized that the use of and application of contemporary geospatial technologies and geographical databases is beneficial at all stages of population and housing census process. Geospatial improve the efficiency in the preparatory, enumeration, processing and dissemination phases of the census


Census Geography programme

National Statistical Organizations should: Develop GIS as a long term project:

To prepare the census enough in advance Too expensive for the census only To be used beyond the census as infrastructure for other statistical

purposes (other sources, sample frame...) Ensure the availability of adequate resources to that end; Actively participate, in partnership with other national

authorities, in the development of a national geographical information capacity, including the National Spatial Data Infrastructure (SDI).


Institutional/Organizational Issues

A specialized in-house Cartography/GIS unit

Building technical and human capacities

National Spatial Data Infrastructure (NSDI) Basic data Population Datasets and Geocoding System: basic

components


Spatial Data Infrastructure (SDI)

Geographic Information:Infrastructure Concept

Important as physical infrastructure assets such as roads, communications networks, and other

public utilities

Info: http://www.fgdc.gov/nsdi/nsdi.html


Geographic Information (or Spatial Data) Infrastructure Concept

The Spatial Data Infrastructure Concept: SDI= Policies+ Standards + Human-Resources +Techologies Core Spatial Data (Framework Data): common

- Geoditic Network – Administrative boundaries – Hydrography – Elevation – Roads and Railroads – Cadastre.


Spatial Data Infrastructure (SDI)

Definition - the technology, policies, standards, human resources, and related activities necessary to acquire, process, distribute, use, maintain, and preserve spatial data

Part of a nation’s e-Gov strategy

www.GSDI.org


Framework Data (common)/ Reference Data

Geoditic network Administrative Boundaries Hydrography Elevation Roads and Railroads Cadastral Geographical Names


Main NSDI Components


NSDI Components…Cont.

•Interoperable, framework data

•Clearinghouses for data storage and access

•Search tools for locating data

•Metadata for data description


List of 13 Core Layers (UN)(to be reviewed, Santiago Nov. 2006)

1. Transportation network/Roads/rails/Navigation routes2. Population centres / gridded Population density3. Hydrography / Hydrology / drainage network/ River and lake basins4. Hydrogeology5. Coastlines6. Land-cover/Land-use7. Hypsographic ( elevation contours)8. Bathymetry9. Landmine areas10. Protected area / Restricted areas11. Geology, geomorphology12. Airports/Helipad13. Health facilities


GI Standards

ISO/TC 211 OpenGIS Consortium


A new Working Group on Census Cartography within ICA


Joint Board of Geospatial Information Societies (JB GIS)

FIG ISPRS ICA IAG IMTA IHO ISCGM


END


Implementing a GIS

• Consider the strategic purpose • Plan for the planning• Determine technology requirements• Determine the end products• Define the system scope• Create a data design• Choose a data model• Determine system requirements• Analyze benefits and costs• Make an implementation plan

Source: Thinking About GIS, Third Edition Geographic Information System Planning for Managers

unsd-celade regional workshop on census cartography for the 2010 latin america’s census round...

Documents

census mapping

census slide

round census cartography

latin americas census

census cartography process

precensus preenumeration

housing census process

postcensus postenumeration