The European Forum for Geography and Statistics, and plans ......foundation for systems integration and high quality spatial statistics 1 May 24th 2016, System Integration Geospatial

Point based statistical framework

foundation for systems integration and high quality spatial statistics

1

May 24th 2016, System Integration

Geospatial World Forum, Rotterdam

Janusz Dygaszewicz

President

of European Forum for Geography and Statistics

Director

of Programming and Coordination Department

Central Statistical Office of Poland

Geographic information system

IT system

Statistical data

+ maps (tracing paper layers

overlapped by hand )

Computer

visualization

of spatial databases

Spatial databases for statistics

Statistical address points

• address points for dwelling locations (only)

Statistical division boundaries

• Statistical regions

• Enumeration areas

3

Reference materials

• Ortophotomap,

• Cadastral Data,

• Administrative division borders,

Primary:

• Cadaster or LPIS (Land Parcel Identification System),

• Road and street network (commercial),

• Geographical Names,

• Topographic Data Base.

Secondary:

4

Results

210 GIS operators in 63 regional offices

6 months time (January – June 2010)

5,7 milion statistical address points acquired

GIS built from scratch in a very short time

5

6

7

Hand-Held terminal with GPS

HTC Touch Pro2

QWERTY

GSM/GPRS/EDGE/UMTS/HSPA

GPS modul

3,2 Mpix

Windows Mobile® 6.5

CAxI

• CAII - Computer Assisted Internet Interview,

• CAPI - Computer Assisted Personal Interview,

• CATI - Computer Assisted Telephone Interviewing.

CAxI

9

CAXI

10

11

13

„The 10 Level Model” u

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14 Personal proposition of Janusz Dygaszewicz CSO Poland

„The 10 Level Model”



1. ADMINISTRATIVE LEVELS (level 1-5) • The both systems (geodetic and statistical) function five

reference layers relating to the administrative division of the

country (in Europe NUTS 1, 2, 3 and LAU 1, 2).

• From the point of view of data synchronization those layers

are treated equally by both systems.

• Data collected in geodesy and through statistical service are

referenced to the same geometry that is already established

usually by Mapping Agency (MA).

• It is possible to use this geometry for the process of

geocoding statistics.

• Process takes place at the high level of aggregation which is

more often not satisfactory for users of the statistics.

„The 10 Level Model” for harmonization of

statistical and geodesy reference framework.



?


2. INDIVIDUAL UNITS FOR INTERIOR PUPRPOSES (level 6)

• Two different system of territory division.

• cadastral units and cadastral parcels in geodesy,

• statistical regions and enumeration areas in statistics.

• Harmonization causing some problems because statistics

used statistical units so commonly and unfortunately geodesy

„don’t like” such division of space, prefer own cadaster

system.

• This is main source of misunderstanding between our two

communities!






3. POLYGON (level 7)

• In geodesy the polygonal layer is commonly used.

• In case of environmental phenomena their polygonal

ranges are quite problematic to identify.

• Such badly standardized layer would be characterized

by a huge variability and also diversity of surveyed

polygons.

• Consequently for statistical purposes it would become

confusing over time and useless for statistical analysis

and comparisons.

• GRID could be a solution!.






4. GRID (level 8) • Kind of compromise is the idea to use grid as a special type

of the polygon.

• Such standardization of a polygon ensures grid with

appropriately selected mesh.

• The problem is that the geodesy „don’t like” the GRID and

such objects should be officially introduced into the existing

geodetic system.

• This step guarantees the proper development of the correct

geocoding environmental phenomena presented in statistics






5. LINE (level 9)

• Geodetic data are presented using linear objects.

• In statistics there are no surveys that could be

presented using this type objects.

• The possibility of creating linear statistics will appear in

the near future.

• It will allow for simple connection between linear

statistical data with geometry offered by geodesy

(linear geocoding). e.g. transport, waterways or linear

investments.






6. POINT (level 10)

• At the lowest level of geocoding, in both systems, points

reflecting the spatial position are functioning, usually in

the form of x,y coordinates.

• In this area the fastest progress in the field of

cooperation between statistical and geodesy services is

observed.

• The reason is that in the last census most countries

successfully used geometry of the address points and it

become an important link between statistical and spatial

data (precise point geocoding).






Conclusion:

The question marks in the proposed model

should be the subject of intensive work for the

Group of Geospatial Experts in order to break

down existing barriers and as a starting point to

make practical progress in the methodology of

combining spatial data with statistical data, with

particular emphasis on the specifics of

environmental phenomena and SDG indicators.

„The 10 Levels Model” u

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Five principles of the proposed

Global Statistical

Geospatial Framework

Accessible

& Usable

Interoperable data and metadata standards

Common geographies

for dissemination of statistics

Geocoded unit record data

in a data management environment

Use of fundamental geospatial infrastructure and geocoding

The Statistical Geospatial Framework

GEO.STAT.GOV.P

L

GEO.STAT.GOV.P

L

Demographic data in 1 km2 grid

32

(persons)

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Copyright© 1997-2015. The Trustees of Columbia University in the City of New York.

http://ciesin.columbia.edu/copyright.html

http://www.columbia.edu/

Point based statistical framework

a foundation for systems integration and high quality spatial statistics

36

May 24th 2016, System Integration

Geospatial World Forum, Rotterdam

Janusz Dygaszewicz

[email protected]

Thank you!

Questions?

Documents

The European Forum for Geography and Statistics, and plans ......foundation for systems integration and high quality spatial statistics 1 May 24th 2016, System Integration Geospatial