Geographic data linking in statistics Norwegian practices - With - - PDF document

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Geographic data linking in statistics Norwegian practices - With - - PDF document

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UNITED NATIONS SECRETARIAT SA/STAT/AC.279/P10 Department of Economic and Social Affairs October 2013 Statistics Division English only United Nations Expert Group on the Integration of Statistical and Geospatial Information First Meeting New

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UNITED NATIONS SECRETARIAT SA/STAT/AC.279/P10 Department of Economic and Social Affairs October 2013 Statistics Division English only

United Nations Expert Group on the Integration of Statistical and Geospatial Information First Meeting New York, 30 October - 1 November 2013 Agenda: Item 6

Geographic data linking in statistics – Norwegian practices

  • With focus on the Norwegian Cadastre 1

Prepared by Norway

1 This document is being produced without formal editing

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Geographic data linking in statistics Geographic data linking in statistics – – Norwegian practices Norwegian practices

  • With focus on the Norwegian Cadastre

With focus on the Norwegian Cadastre

Presentation for Item 6 on the agenda for meeting

  • f The Expert Group on Integration of Statistical and

Geospatial Information

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Outline

  • Backdrop

– Statistics Act – The Norwegian Mapping Authority / Norway Digital – Registers and geospatial data – The Cadastre – Geo-coding populations in Statistics Norway

  • Geographic data linking

– Identifiers – Brief description of linking processes – Statistics – some examples

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Statistics Act

§ 2-2. Obligation to provide information The King1 may by regulation or resolution impose upon any person an obligation to provide the information which is necessary for the production of official statistics in so far as any legally prescribed obligation of secrecy is no obstacle thereto.

1= Ministry of Finance pursuant to Regulations of 16 June l989 No. 387. Delegated to Statistics Norway pursuant to Regulations of 13 February 1990 No.1228.

  • The Board of Directors approves of new official statistics

and the kind of data collection necessary.

  • Statistics Norway's possibilities to share data after having

linked datasets to achieve new information is limited by the same act.

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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The Norwegian Mapping Authority (NMA)

  • National geo-data coordinator,

according to the Geo-data Act

  • Collates, systemises, manages

and communicates public geographical information

– National geodetic frame – General feature catalogue: SOSI- standard – Judicial registration authority of land register and cadastre data

  • Collaborates with municipalities

and other public sector suppliers and users of geographical information in Norway Digital.

  • Organised in four divisions:

– The Geodetic Institute – Mapping and Cadastre – The Hydrographic Service – The Land Registry – See more at:

http://www.statkart.no/en/About-The- Norwegian-Mapping-Authority/The- Norwegian-Mapping- Authority/#sthash.QsDSpZEU.dpuf

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Norway Digital

  • The national geospatial infrastructure

– Launched in 2005 and coordinated by the NMA – NMA in collaboration with ministries and their agencies, county administrations, municipalities, different regional public bodies – Various forms of cross-cutting working forums

  • Embraces more than 100 operational web map services,

geo-data portal and other services

  • Platform for the implementation of the INSPIRE-directive:

– Including establishing reference and thematic data/map services

 Statistics Norway is responsible for: “Statistical units”, “Population distribution and demography” as well as “Land use”

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Registers and geospatial data essential to Statistics Norway

Registers

  • Central Population Register
  • Central Coordinating Register for

Legal Entities

  • Several other registers are also

used in statistics production Geospatial data

  • National topographical data series

– 1:5 000 - 1:50 000

– The NMA

  • Topographical data of Svalbard and

Jan Mayen

– Norwegian Polar Institute

  • Land cover data (AR-STAT)

– Norwegian Forest and Landscape Institute

A combination

  • The Cadastre
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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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The Cadastre; an example of institutional collaboration

Cadastre

The Norwegian Mapping Authority

Statistics Norway Post Address Register Municipalities

Local Cadastre authority

Central Population Register Central Coordinating Register for Legal Entities Property Register

District Courts

Land Pollution Register Protected Monument and Site Register

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Various registers Norway Digital

www.norgedigitalt.no

F I R E W A L L

Statistics Norway

Dissemination zone: WMS/WFS ssb.no StatBank

Local Cadastre Copy

Geo-coding populations - conceptual model

Desktop GIS program SAS

Pop. register

  • Establ. & Ent.

register Statistics Norway Cadastre

Geo-database

Central Cadastre (The NMA) Changes API (Nightly)

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Geo-coding/Geographic data linking

  • Identifiers – the most important ones:

– Numerical “Street address” – Numerical “Cadastral address” – Coordinates – Municipality code + Land and holding codes – Business register code – Personal identification code – Regional levels

 Municipality code  Basic statistical units/Basic regional units  Statistical tracts, parishes etc  Grids, with unique cell coordinates

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Brief description - Linking resident/person to a coordinate (geo-coded place of residence)

Central Population Register

– Add information from the Cadastre:  Coordinates for Numerical address  Basic statistical unit  Statistical tract, parish  Identifier for linking: Numerical address  Precision level – correspondence on first 17 (of 26) digits to achieve sufficient regional level

 No registers are perfect/complete – Necessary to make additional other types of linking to achieve sufficient coverage

– Residents with coordinates:

 Can add education, income, occupation, gender etc. to place  Identifier = personal identification code  Can be assigned to a grid cell

– Numerous of possibilities for statistics by combining various geo-coded datasets.

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Brief description – Data linking process for land use and land cover statistics 1

Geo-database

  • Address coordinates
  • Building centre coordinates
  • Building type code
  • Real property polygons
  • Real property lines
  • Building contours
  • Topographical data
  • N50-N5000
  • Svalbard
  • Land cover (AR-Stat)
  • Roads
  • Several other datasets

Cadastre NMA

  • Geo-database: built-in

SQL-routines for automatic linking

  • Other routines

performed in SAS and ArcGIS

  • NMA
  • Norway

Digital

  • Other
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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Brief description – Data linking processes for land use and land cover statistics 2

  • Merging data in ArcGIS

– datasets in a specific order of priority

  • Calculations
  • Statistics dissemination

– “Standard for classification

  • f land use and land

cover” – http://stabas.ssb.no/Classif icationFrames.asp?ID=837 2001&Language=en – Harmonised with international standards

  • National figures and

regional breakdowns

– Counties, municipalities – Urban settlements

Result: New polygons – a “map” representing land use and land cover

  • http://www.oecd.org/std/OECD-Statistics-

Newsletter-Sept2013.pdf

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Statistics - where geographical data linking is vital, some examples

  • Statistics

– Building stock

– http://www.ssb.no/en/bygg-bolig-og- eiendom/statistikker/bygningsmasse

 Also available in a grid map

– Price index for new detached houses

– http://www.ssb.no/en/priser-og- prisindekser/statistikker/enebolig/kvartal/2013- 09-20#content

– Transfer of properties

– http://www.ssb.no/en/bygg-bolig-og- eiendom/statistikker/eiendomsoms/kvartal/201 3-10-29

– Agricultural properties

– http://www.ssb.no/en/jord-skog-jakt-og- fiskeri/statistikker/laeiby/aar/2013-10-15

  • Map service

– http://kart.ssb.no/default.aspx?gui=1&lang=1

– Population, by Basic statistical unit – Dwellings – Centre zones – Urban settlements – Agriculture – and more…

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NY, 30 Oct. - 1 Nov. 2013 UN Expert group on integration og statistical and geospatial information, Mr. Jørn Kristian Undelstvedt, Statistics Norway

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Thank you for your attention!