Geostatistics Portal A platform for census data visualization

Mirosław Migacz Chief GIS Specialist

Central Statistical Office of Poland m.migacz@stat.gov.pl

www.linkedin.com/in/migacz

INSPIRE Conference 2013: The Green Rennaisance Florence, June 26th 2013

• About the project • Functionalities and layout • Cartographic presentation methods • INSPIRE services

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Agenda

GEOSTATISTICS PORTAL

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GEO.STAT.GOV.PL LAUNCHING JUNE 2013 with:

• CHOROPLETH MAPS WITH AGRICULTURAL CENSUS 2010 RESULTS

• INSPIRE SERVICES FOR STATISTICAL UNITS

Plans for the rest of the year 2013

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• diagram maps with Agricultural Census 2010 results • choropleth maps with Population and Housing Census 2011

resuts • diagram maps with Population and Housing Census 2011

resuts • INSPIRE services for Population Distribution (Demography)

FUNCTIONALITIES AND LAYOUT

Geostatistics Portal functionalities

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geovisualization of census’ results • Agricultural Census 2010 • Population and Housing Census 2011

publishing spatial data maintained within official statistics • statistical regions • census areas

publishing INSPIRE services for two annex III themes • statistical units • population distribution (demography)

advanced spatial analyses on microdata • for authorised users within official statistics

Geovisualisation of census results

All statistical data georeferenced to a point

Agricultural Census 2010

• Census data collected with spatial reference to: • agricultural holding location • holder’s dwelling location

Population and Housing Census 2011 • Census data collected with spatial

reference to: • dwelling location

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LOCATION

Land Parcel Identification

System

Statistical address points

Census data storage and use

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Municipality (LAU2)

County (LAU1)

Subregion (NUTS3)

Voivodeship (NUTS2)

Region (NUTS1) • Geostatistics Portal database stores census’ results aggregated to units of territorial division (down to LAU2)

• For each thematic phenomena absolute (non-standarized) values are stored

• Not all data stored in the Portal is published for unauthorized users due to statistical data confidentiality issues

Default view

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Statistical division

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Object identification

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Line based selection and buffering

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Line based buffering

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Polygon based buffering

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CARTOGRAPHIC PRESENTATION METHODS

Cartographic presentation methods

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• choropleth maps • diagram maps

– circle • proportional, • structural, • proportional & structural,

– bar • proportional, • structural, • proportional & structural,

– complex

Diagram map

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A cartographic presentation method for visualisation of absolute data. Since absolute data are stored in the Geostatistics Portal database, they can be directly visualised on diagram maps.

Choropleth map

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A cartographic presentation method for visualisation of standarized data – statistical indicators. Geostatistics Portal stores a set of normalization attributes, which allow on-the-fly calculation of statistical indicators to be presented on choropleth maps.

User defined parameters for choropleth maps

GEOSTATISTICS PORTAL

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THEMATIC PHENOMENA LIST

STATISTICAL INDICATORS

AGGREGATION LEVEL

NUMBER OF CLASSES

CLASSES CALCULATION METHODS

COLOR SCALE

TRANSPARENCY

LABELS AND BORDERS VISIBILITY

Choropleth map

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Percentage of holdings that keep 1 sow within all holdings in a voivodeship (NUTS2)

Diagram map (circle, proportional)

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Crop area in each subregion (NUTS3)

Diagram map (bar, proportional)

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22 Grain crops area in each subregion (NUTS3)

Diagram map (circle, structural)

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Structure of cultivation areas of 5 basic grains in each voivodeship (NUTS2)

Diagram map (circle, proportional & structural)

GEOSTATISTICS PORTAL

24 Structure and combined area of root and fodder plants cultivation in

voivodeships (NUTS2)

Diagram map (bar, structural)

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Structure and cultivation areas for various fodder crops in voivodeships (NUTS2)

Diagram map (bar, proportional & structural)

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26 Structure and combined value of seed crops in voivodeships (NUTS2)

Diagram map (complex)

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- Number of holdings with gardens - Number of holdings with plowed grounds - Number of holdings with permanent cultivation

Bar chart

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INSPIRE SERVICES

Spatial data themes

GEOSTATISTICS PORTAL

Central Statistical Office of Poland is the authority responsible for two annex III spatial data themes:

statistical units SU

population distribution (demography) PD

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INSPIRE deadlines

3 XII 2013 • Discovery services • View services • Download services (datasets don’t have to be compliant with

data specifications) • Metadata for data sets and services

OCTOBER 2020 • Compliance with data specifications needs to be achieved

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INSPIRE services in the Geostatistics Portal

• discovery service – running, • view service:

– statistical units – running, – population distribution (demography) – 3rd quarter 2013,

• download service: – statistical units – running, compliant with the data specification, – population distribution (demography) – 3rd quarter 2013, will be

compliant with the data specification,

• metadata – published for existing data sets and services.

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Discovery Service

• metadata search engine in the Geostatistics Portal

• discovery service running – compliant with OGC CSW 2.0.2. specification

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View Service – Statistical Units • view service running for statistical units – compliant with OGC

WMS 1.3.0. specification, • object visualization compliant with the data specification, • a national statistical units style implemented

(SU.VectorStatisticalUnits.Krajowy)

GEOSTATISTICS PORTAL

default style SU.VectorStatisticalUnits.Krajowy

Download Service – Statistical Units • download service for statistical units running as predefined

dataset download service (compliant with Technical Guidance for the implementation of INSPIRE Download Services 3.0),

• service is running on Atom 1.0 and OpenSearch 1.1., • statistical units data set divided into 16 GML files – one for

each voivodeship, • data sets are compliant with the data specification for

statistical units.

http://geo.stat.gov.pl//atom_web-0.0.1/atom/JednostkiStatystyczne

GEOSTATISTICS PORTAL

SUMMARY

Geostatistics Portal – benefits

• access to a huge amount of data on agriculture and demography

• a variety of cartography presentation methods • spatial analysis tools • INSPIRE compliant services • in the future:

– geovisualization platform for results of surveys other than the census – geovisualization of data banks maintained by official statistics

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Geostatistics Portal A platform for census data visualization

Mirosław Migacz Chief GIS Specialist

Central Statistical Office of Poland m.migacz@stat.gov.pl

www.linkedin.com/in/migacz

Thank you for your attention