GEOSTATISTICS IN LATVIA

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GEOSTATISTICS IN LATVIA
CSB of Latvia in cooperation with State Land
Service Geospatial Information
Agency Geostatistical Conference Kongsvinger,
Norway September 12 14, 2006
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Main Actors involved
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• BASIC STATISTICAL INDICATORS
• Total area 64.6 thousand sq.km
• Population 2.3 million
• Districts 26
• Municipalities 530

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• Administrative-territorial division of the
  Republic of Latvia
• district
• major city
• town
• amalgamated municipality (novads)
• parish (rural municipality)
• town with rural area
• Territorial units division of the Republic of
  Latvia
• town of amalgamated municipality
• parish of amalgamated municipality
• rural area of town

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State Land Service (SLS)

• Established in 1992
• Main tasks
• implementation of land reform
• maintenance of National Real Estate Cadastre
• maintenance of Address Register
• maintenance of Protective Zones Information
  System
• as well as
• valuation of real estates
• cadastral surveying of buildings
• performance of other related functions.

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Changes in scope of competence of SLS

• Until January 1, 2006 State Land Service
  performed also surveying and mapping functions.
• In the result of reorganization now these tasks
  are performed by
• newly established State Limited Company "Latvia
  State Surveyor (surveying)
• and
• by newly established Latvian Geospatial
  Information Agency (geodesy, mapping, production
  of basic data of state geographic information)

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Organisation chart of SLS
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Geospatial information maintained by SLS

• Both textual data of cadastre (since 1996) and
  cadastral map (since 2000) are maintained only in
  digital form
• Data of National Real Estate Cadastre cover 100
  of the total area of Latvia
• The content of the Cadastre increased gradually
• land parcels and land properties (tenure) (since
  1992)
• buildings (since 1996),
• mass registration of apartments (since 2000)
• Address Register is maintained since 2000 (in
  digital form)

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Data transferred from SLS to CSB (I)

• Data from National Real Estate Cadastre
  Information System
• for Statistical Register of Rural Farms
• properties (land assigned for use), lease
• owners, (users), leaseholders
• land parcels
• for Statistical Register of Buildings
• buildings
• owners                    
• groups of premises
• information on transactions with land, buildings
  and apartment properties

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Data transferred from SLS to CSB (II)

• Data from National Address Register
• Boundaries of administrative territories and
  territorial units, their names and codes of
  Classification of Administrative Territories and
  Territorial Units
• Data of National Address Register

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Geospatial Information Agency

• State agency Latvia Geospatial Information
  Agency (LGIA) builds up in correspondence with
  decision of Cabinet of Ministers of Latvia from
  21.Decembre 2005 Nr.821 About establishment of
  State Agency Latvia Geospatial Information
  Agency and it is legal successor of State Land
  Service functions, rights, obligations,
  possessions and financial resources on the sphere
  of geodesy and mapping.
• Corresponding regulations to Cabinet of Ministers
  from 20.Decembre 2005 Nr.821 LGIA is state
  administration body under supervisory of Minister
  of Defence.
• Until January 1, 2006 Geospatial Information
  Agency worked as independent body.

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Organisation chart of LGIA
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Functions of LGIA

• By the Regulation of State agency Latvia
  GeoSpatial Information Agency, LGIA have
  functions as listed below
• to obtain, process and maintain the geographic
  basic data for civil and military needs,
• to form and develop the united geographic basic
  data information system,
• corresponding to competence to cooperate and
  offer geodesic, cartographic and geospatial
  information for society, state and municipal
  institutions, North Atlantic Treaty Organization
  (NATO), NATO member states and European Union
  institutions, as well as another international
  competent authorities.

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Geospatial information maintained by LGIA (I)

• Geodetic network
• Ortophoto maps (scale 12000, 110000)
• Remote sensing information
• Topographic maps and databases 110000 till
  1100000 (topographic maps scale 12000 ordered
  by municipalities)
• Digital Terrain models
• Place-names and geographic names
• Surveying of state border

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Geospatial information maintained by LGIA (II)

• Geodetic and mapping archive information, include
  electronic.
• Aero navigation charts
• Spatial data meta data base

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Data transferred from LGIA to CSB

• As background of statistic researches and
  visualization of statistic information
• Ortophoto maps
• Topographic maps and data bases.

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Geostatistical Issues (production and design)

• History and development of the process
• Today
• Examples of different types of maps

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Brief history of Geostatistical Issues production
for data dissemination in CSB of Latvia

• Till 2000 Statistics over maps making was
  outsorced
• partner map publisher commercial company Jana
  seta
• 2000 beginning of in-house production
• hand made maps using Corel Draw
• time consuming, tiresome and exhausting manual
  work
• Since 2002 Statistics on maps have been produced
  using GIS software ArckView
• cost effective
• quick, flexible production
• high quality product
• Digital boundaries at the level of Regions and
  Rural Municipalities produced by SLS

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TOOLS USED FOR MAP PRODUCTION

• In preparation process of publications
• ARCMAP 8.2
• PX-MAP used for creation of Choropleth map
• graphical design software for polishing
• Electronic dissemination
• PX- MAP
• PX-iMAP

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ORGANIZATIONAL ASPECTS

• Initiator (can be Production unit or other
  section in Dissemination unit)
• supply initial proposal and data
• Geostatistical issue are produced by
  dissemination unit
• acts as manager on following issues
• which data should be used for maping
• which type of map
• number and size of classes

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Examples of different types of maps produced in
CSB of Latvia
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Breakdown by district
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Breakdown by Rural Municipality
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(No Transcript)
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Map with pie charts I
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Map with pie charts II
Size classes polished in Coreldraw
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Map with clustered columns
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THANK YOU FOR ATTENTION!

• Signe Rudzite - Head of Cadastre and Registers
  Data Exchange Division
• Signe.Rudzite_at_vzd.gov.lv
• Arvids Ozols - Director, Large Scale Mapping
  Department
• arvids.ozols_at_lgia.gov.lv
• Karlis Zeila - Vice President, CSB of Latvia
• Karlis.Zeila_at_csb.gov.lv