National Land Services plans developing georeferencial spatial data in Lithuania

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National Land Services plans developing
georeferencial spatial data in Lithuania

• National Land Service under the Ministry of
  Agriculture
• Cadastre Geodesy Department Director
• Saulius Urbanas

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Institution National Land Service

• Established on 1st June 2001
• Major tasks related to GI
• Pursue the state policy in the sphere of
  geodesy, development of cartographic and
  geo-referencial DBs and IS needed for
  agricultural development
• Co-ordinate the unification of geo-referential
  DBs and their harmonisation with other IS
• Exercise the state control over natyional
  geodetic, topographic and cartographic
  activities, formation and maintenance of national
  geo-referential DBs, and quality control.

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NLS Organisational Structure
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Traditional way of GI production
SCALE 110 000
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Integrational way of GI production
Seamless DB
Data collection
Production
End-user product
Seamless DB
End-user product
Data collection
Production
End-user product
Seamless DB
Data collection
Production
NLS
Private sector
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GIS for providing an infrastructure
Projects
Systems
Enterprises
Communities
Integrated
Coordinated
Cooperative
Collaborative
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Development of Spatial Data infrastructure

• Global Spatial Data Infrastructure (GSDI)
• EC Proposal for INfrastructure for SPatial
  InfoRmation in Europe (INSPIRE) Directive
• Development of Lihuanian Geographical Information
  Infrastructure (LGII)

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LGII The vision
People
User Interface
Policy standards
Network
Existing future datasets Reference Data
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LGII Data streams
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LGII reference data themes
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Program 2005-2009 for developing geodetic
reference of Lithuania and Lithuanian territorys
mapping

• Task to develop geodetic and cartographic
  materials under international and NATO standards,
  which should become an official source of states
  geographical objects executing the States
  functions for developing and managing registers,
  cadasters and databases and assuring the supply
  of such information to national defense, navy,
  air navigational and to other public and private
  users.
• 5 years
• 73 mln. Litas

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Urban territories mappings program 2003-2007

• Renew local geodetic networks, reference them
  with national GPS and re-establish local
  networks coordinates according to the defined
  parameters.
• To execute large scale aerial images for urban
  areas of Lithuania (107 cities and townships,
  total - 1660 sq. km)
• To produce ortophoto images (analogue and
  digital) of cities and townships territories
• Based on ortopho images to develop large scale
  geo-referencial databases

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The most useful available GI in Lithuania

• Georefencial database at scale 110 000
• Ortophoto maps 110 000

• Cartographic database KDB10 LT
• Raster topographical map at scale 110 000
• Topographical maps at scale M 150 000
• Satellite imaging geo-database at scale 150 000
• Geo-database at scale 1200 000

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2005 activities for development of cartographic
data and geodetic control

• Ortophoto maps 110 000
• Update of geo-referencial DB 110 000
• Digital Elevation Model (DEM)
• 1,5m accuracy from Aerial triangulation
• Geo-DB 150 000
• Update of local geodetic networks
• Finalisation of State vertical network
• Establishment of the permanent GPS network
• Land Information System

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Main geo-referential themes

• Geodetic reference

• Topographical levels

• Administrative units
• Geographical names
• Buildings
• Hydrography
• Transport
• Ortophoto images
• DEM/DTM
• Land cover

• Land Cadastre

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Step-wise approach in regard to geo-reference DB
110 000

• Update of
• Roads connectivity with Road Administrations
  information
• Hydrography connectivity with Waters Cadastre
• Extension to
• Forest layer connectivity with Forestrys
  Cadstre
• Preserved areas connectivity with Preserved
  Areas Cadastre
• Administrative Boundaries connectivity with the
  data from the Centre of Registers
• Digital Elevation Model Aerial photography /
  Laser scanning

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Why DEM/DTM

• Lack of reliable DEM/DTM in Lithuania
• Old data (digitised from soviet maps)
• Low accuracy
• Intensive construction (e.g. in the biggest
  cities)
• Big demand from the market
• Requirements in a number of applications
• Independent layer in regard to other spatial data
  high integrity is not necessary for today

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NLS interest on LIDAR technologies

• Plans for producing LIDAR data in urban areas
  (the biggest cities)
• Amend to the DEM from aerial triangulation (1,5m
  accuracy)
• Terms of Reference (drafting)
• Accuracy
• Timing
• Application areas (ref. to accuracy)
• Requirements for processing
• Cost
• Peculiarities (data content, usefulness, etc)

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Thank you for the attention