Transcript PPT

Geocoding and Census Mapping:
Conceptual Framework and Different
Approaches
Lisa Jordan
Florida State University
Department of Geography, Center for Demography and Population Health
Geographic census data are valuable
Planning
of social
and
educational
services,
poverty
analysis,
utility
service
Planning
Planning
social
and
educational
services,
poverty
analysis,
utility
service
Planningofof
ofsocial
socialand
andeducational
educationalservices,
services,poverty
povertyanalysis,
analysis,utility
utilityservice
service
planning,
labor
force
analysis,
marketing
analysis,
voting
district
delineation,
planning,
planning,
labor
force
analysis,
marketing
analysis,
voting
district
delineation,
planning,labor
laborforce
forceanalysis,
analysis,marketing
marketinganalysis,
analysis,voting
votingdistrict
districtdelineation,
delineation,
emergency
planning,
epidemiology
analysis,
flood
plain
analysis,
emergency
emergency
planning,
epidemiologyanalysis,
analysis,
floodplain
plainanalysis,
analysis,and
and
and
emergencyplanning,
planning,epidemiology
epidemiology
analysis,flood
flood
plain
analysis,
and
agriculture
(including
famine
early
warning
systems)
agriculture
agriculture
(including
famine
early
warning
systems)
agriculture(including
(includingfamine
famineearly
earlywarning
warningsystems)
systems)
Types of Interpolation
Source(s) for Interpolation
Simple Interpolation:
Gridded Population of
the World (GPW) Data
Set
Population Census Estimates
Smart Interpolation:
Land-use:
Roads:
City Lights:
IKONOS, LANDSAT
TIGER
DMPS-OLS
Advanced Interpolation:
LandScan:
Surface Modelling of
Population Distribution
(SMPD):
Gridded Rural-Urban
Mapping Project
(GRUMP):
Surface
Nighttime
Land-use:
Roads
GRUMP:
Land-use:
Land-use:
Modeling:
Lights:
GPW
IKONOS
Landsat
Landsat
LandScan:
Land-use, roads, slope, elevation
Land-use, Net Primary Productivity (NPP),
elevation, city distribution, transportation
infrastructure
Human settlement data, night-time lights,
defense population databases
elevation
NPP
railways
cities
roads
land-use
Reibel and Bufalino,
2005
Growing Open Source and Public
Application of Census Information
Public, web-based geocoding and GIS, batchgeocode.com
Growing Open Source and Public
Application of Census Information
San Francisco, population, census block groups
San Francisco, population, interpolated
gCensus, by Imran Haque, gCensus – GT, allows import of raster
files, GeoTiffs, for example
Growing Open Source and Public
Application of Census Information
•
•
•
•
QGIS
MapWindow
uDig
Saga
Geocoding Concepts
• Address Matching
• Assignment to Enumeration Areas
Geocoding Concepts
Census Hierarchy
Address Hierarchy
Geocoding Concepts
Applications and Limitations
pre-enumeration
enumeration
post-enumeration
Suggested Updates to the Handbook
•
•
•
•
Updates on software/hardware discussion
- mentioning the potential advantages of
investing in open source GIS
Include suggestions for assessing data quality,
such as the geocoding certainty indicator (GCI)
(Davis and Fonseca 2007)
More and updated case studies (as presented
here this week)
Perhaps mention the valuable role of the
United Nations in facilitating an international
spatial data infrastructure that brings disparate
national information together