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The role of the core geospatial information infrastructure
in the protection and management of the natural and
cultural he...
The Hellenic Cadastre
Lolonis P. 2018, “The role of the core geospatial information infrastructure in the protection and m...
Core geospatial data in the realm
of the Hellenic Cadastre
Lolonis P. 2018, “The role of the core geospatial information i...
Core Geodetic Data
Operation of the Hellenic Positioning System (HEPOS)
Lolonis P. 2018, “The role of the core geospatial ...
Core cartographic data
Orthophotomaps (Large Scale Orthophotomaps 25 –LSO25)
Lolonis P., 2018, “The role of the core geosp...
Core cartographic data
Elevation (Digital Elevation Model–LSO25)
Lolonis P., 2018, “The role of the core geospatial inform...
Core geo-spatial data
Cadastral maps
Lolonis P., 2018, “The role of the core geospatial information infrastructure in the ...
Other geo-spatial data developed by Hellenic Cadastre
1945/1960 orthophotomaps
Lolonis P., 2018, “The role of the core geo...
Other geo-spatial data developed by Hellenic Cadastre
1945/1960 orthophotomaps
Lolonis P., 2018, “The role of the core geo...
Core spatial data infrastructure and natural heritage
“Forest” maps of the country
Lolonis P., 2018, “The role of the core...
Core spatial data infrastructure and natural heritage
“Forest” maps of the country
Lolonis P., 2018, “The role of the core...
Core spatial data infrastructure and natural heritage
“Shore” maps of the country
Lolonis P., 2018, “The role of the core ...
Core spatial data infrastructure and natural heritage
Monitoring for unauthorized construction in fire-stricken areas of A...
Core spatial data infrastructure and natural heritage
Accurate delineation of the NATURA 2000 Network areas
Lolonis P., 20...
Core spatial data infrastructure and cultural heritage
Depiction of archaeological sites and other points of interest on b...
Core spatial data infrastructure and cultural heritage
Depiction of archaeological sites and other points of interest on b...
Core spatial data infrastructure and cultural heritage
Depiction of archaeological sites and other points of interest on b...
Integration of spatial data infrastructure with
emerging technologies
Lolonis P., 2018, “The role of the core geospatial i...
Summary and conclusions
Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection an...
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Lolonis Panos 2018 The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece Panos Lolonis Echopolis 2018 Athens Greece

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This presentation describes how the Hellenic Cadastre's core geospatial data may be used to protect and manage the natural and cultural heritage of Greece. It was presented at the Echopolis 2018 event which took place in Athens Greece in November 26-28 2018.

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Lolonis Panos 2018 The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece Panos Lolonis Echopolis 2018 Athens Greece

  1. 1. The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece Panos Lolonis Surveying Engineer-Geographer, Ph.D. Head of the Geospatial Information Department HELLENIC CADASTRE 288 Mesogion Ave. 155 62 Cholargos – Athens Tel. +30 (210) 6505-636
  2. 2. The Hellenic Cadastre Lolonis P. 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Hellenic Cadastre is a public agency in Greece responsible for the development and operation of the Hellenic National Cadastre, as well as, for the development and management of the core geodetic, cartographic, and geospatial data of the country. • The agency was established in January 2018 and succeeded the Hellenic Cadastral and Mapping Agency S.A. which was abolished. • Hellenic Cadastre has been endowed with all cadastral, geodetic, cartographic, and geospatial data that had been collected by its predecessor agencies and has been tasked to complete the development of the cadastre by 2020-2021 and undertake its operation. Hellenic Cadastre headquarters, City of Holargos, Athens, Greece
  3. 3. Core geospatial data in the realm of the Hellenic Cadastre Lolonis P. 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 Main categories of core geospatial data: • Geodetic (Reference frames, coordinates) • Cartographic (Vector, imagery, DTM/DSM/DEM) • Geo-spatial (Cadastral parcels etc.) Adopted from the Hellenic NSDI World Bank led working group
  4. 4. Core Geodetic Data Operation of the Hellenic Positioning System (HEPOS) Lolonis P. 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Purpose: Support the cadastral surveying process and the operation of the cadastre. Coverage of the geodetic needs of the country. • System: One Processing Center and 98 permanent stations receiving GPS signals • Coverage: Entire country • System: HTRS07, HGRS ’87 • Scale: Few centimeters (RTK) Few millimeters (post-processing) • Date of operation: 2008 – (onwards) • Frequency / Policy of updating: Continuous • Format: ΡΙΝΕΧ, Compact RINEX • Compliance: 100% • Metadata: Ad hoc • Provision of data / services: o Subscription (payment by time used) o Payment by order • Web: http://www.hepos.gr/?Lang=GR HEPOS: Network of the permanent stations Co-financed by EU
  5. 5. Core cartographic data Orthophotomaps (Large Scale Orthophotomaps 25 –LSO25) Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Purpose: Support of: o Cadastral surveying o Operation of the cadastre o Other mapping needs of the country • Coverage: Entire country • System: HGRS ’87 • Scale: ~1:1.250 (GSD: 25cm) • Precision: RMSExy <0,35 m (achieved 0,18m) • Date of creation: 2014-2016 • Frequency / Policy of updating: Once • Format: Jpeg2000 • Compliance: ~100% • Metadata: Available in XML • Provision of data / services: o Available to agencies, individuals, and firms subject to national security regulations • Also, available are the LSO50 &VLSO20 Indicative example of an LSO25 orthophotomap Co-financed by EU:
  6. 6. Core cartographic data Elevation (Digital Elevation Model–LSO25) Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Purpose: Creation of orthophotomaps for the development and operation of the Hellenic Cadastre (byproduct). Coverage of the other cartographic needs of the country. • Coverage: Entire country • System: HGRS ’87 • Scale: ~1:1.250 (Grid size: 2 m) • Date of creation: 2014-2016 • Frequency / Policy of updating: Once • Format: ESRI Floating Point Grid • Compliance: ~100% • Metadata: Available in XML • Provision of data / services: o Provided only for cases and circumstances allowed by national security rules and regulations Indicative sample of Digital Elevation Model (DEM) (LSO25) Co-financed by EU:Courtesy: M. Papoutsakis, Hellenic Cadastre
  7. 7. Core geo-spatial data Cadastral maps Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Purpose: Registration and maintenance of real property rights in the country. Fulfillment of the INSPIRE requirements. • Coverage: o Present: Areas of the 1st and 2nd Generation of Cadastral Surveying Projects o Future: Entire country • System: HGRS ’87 • Scale: o 1:1.000 & ~1:1.250 (Urban-built areas) RMSExy <0,56 m (achieved 0,20 m) o 1:5.000 (Rural & other areas) RMSExy <1,41 m (achieved 1,10 m) • Date of creation: 1999-present • Frequency / Policy of updating: Continuous • Format: Shape files • Compliance: ~100% • Metadata: Available in XML • Provision of data / services: To everybody Sample of a cadastral map for an urban area
  8. 8. Other geo-spatial data developed by Hellenic Cadastre 1945/1960 orthophotomaps Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Compilation of the 1945/60 orthophotomap • Purpose: Creation of the basemap for the compilation of the “forest map” of the country (necessary for the development of the Hellenic National Cadastre). • Coverage: Entire country • System: HGRS ’87 • Scale: ~1:5.000 (GSD: 1 m) • Accuracy: <10 m. (Achieved:~6 m) • Date of creation: 2008-2009 (Original photos taken in 1945) • Frequency / Policy of updating: Once • Format: TIFF • Compliance: ~100% • Metadata: Available in XML • Provision of data / services: o Through Hellenic Military Geographic Service • Web: http://gis.ktimanet.gr/wms/forestsuspension/default.aspx 1945 orthophotomap of the area around the Min. of Digital Policy Co-financed by EU:
  9. 9. Other geo-spatial data developed by Hellenic Cadastre 1945/1960 orthophotomaps Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Compilation of the 1945/60 orthophotomap • Purpose: Creation of the basemap for the compilation of the “forest map” of the country (necessary for the development of the Hellenic National Cadastre). • Coverage: Entire country • System: HGRS ’87 • Scale: ~1:5.000 (GSD: 1 m) • Accuracy: <10 m. (Achieved:~6 m) • Date of creation: 2008-2009 (Original photos taken in 1945) • Frequency / Policy of updating: Once • Format: TIFF • Compliance: ~100% • Metadata: Available in XML • Provision of data / services: o Through Hellenic Military Geographic Service • Web: http://gis.ktimanet.gr/wms/forestsuspension/default.aspx Recent (2007) orthophotomap of the area Co-financed by EU:
  10. 10. Core spatial data infrastructure and natural heritage “Forest” maps of the country Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Delineation of “forests” and “forest-like” areas is considered to be an essential element for the development of the cadastre in Greece because, by default, those areas are considered to be State land. • Maps depicting those areas (called “forest maps”) are important because they enable the State services to declare forest land (mainly State land). • Compilation of “forest maps” is made using standard photointerpretation methods on GSD 0,25-0,50 cm color orthophotomaps and on GSD 1m, B&W orthophotomaps depicting the situation in 1945/1960. • Both the situation now, as well as, the situation that used to be in the past (1945 or 1960) are depicted on those maps. An excerpt of a “forest” map: Depiction of the current status and of the changes that have happened since 1945. Legend • The area bounded by the black line is a settlement (zoned area). • The areas in dark green are areas that have been always “forests”. • The areas in light green are areas that have changed use since 1945.
  11. 11. Core spatial data infrastructure and natural heritage “Forest” maps of the country Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • The “1945 forest maps” are important because they depict areas that used to be “forests” in the past and, thus, are, by default, State land. Potential owners in such areas must provide extensive documentation of their title to secure land ownership. • Areas that used to be agricultural in the past and have been converted to forests now may be claimed (and accepted) as private land but their use (forest) cannot change • Progress made so far (2017): o Areas having maps compiled: 72.000 (Km2) (~55%) [Ratified (partially): ~31%] o Remaining: 50.000 (Km2) (45%). o Time horizon for completion: 2020. An excerpt of a “forest” map depicting the situation as in 1945. Legend • The area bounded by the black line is a settlement (zoned area). • The areas in dark green are areas that used to be “forests”. • The areas without shading indicate other uses (urban, agricultural).
  12. 12. Core spatial data infrastructure and natural heritage “Shore” maps of the country Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • The “shore” comprises another category of public land that must be registered in the cadastre. It constitutes the border zone of land to the sea. • Delineation of the “shore” using standard procedures (ground surveying, on-site validation by committees) would require excessive amounts of time (for more than 70 years only 10% of the shore was covered) and money (tens of millions of Euros). • Alternative strategy: Use of photointerpretation methods on GSD 25 cm, Color+NIR orthphotomaps to delineate the “Preliminary borderline of the shore”. • The project was carried-out within two years (2008-2009) and cost 2,6 million Euros. Base-map for delineating the “shore” (Co-financed by EU) Legend • The red line indicates the border line of the “shore”, as it was defined using standard procedures (field surveying and ground validation. • The yellow line indicates the “Preliminary borderline of the shore”.
  13. 13. Core spatial data infrastructure and natural heritage Monitoring for unauthorized construction in fire-stricken areas of Attica Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • Continuous monitoring of the area on a bi-monthly basis • Detection of anthropogenic changes in the area • Reporting to the Inspection Body for Unauthorized Construction • The area was struck by fire in 2009 • Monitoring has taken place since 2011. • Total area covered: ~270 sq. kms Detected anthropogenic change in the monitored area Monitored area, NE Attica Argyriou A, Houtopoulos I, 2018, “Operation of the remote sensing based periodic mapping system for detecting unauthorized construction in NE Attica…”, HellasGIS, 10th Pahellenic Conference, Athens, Nov. 12-14, 2018
  14. 14. Core spatial data infrastructure and natural heritage Accurate delineation of the NATURA 2000 Network areas Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 Delineation of the NATURA 2000 area (yellow line) in a mountainous village in Arcadia, Greece
  15. 15. Core spatial data infrastructure and cultural heritage Depiction of archaeological sites and other points of interest on base maps Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 Adopted from Papathanasiou A et al., 2017, “Neolithic Alepotrypa Cave in the Mani, Greece” (Oxbow Books 2018, Oxford & Philadelphia, www.oxbowbooks.com) Alepotrypa Cave, Diros, Mani, Greece
  16. 16. Core spatial data infrastructure and cultural heritage Depiction of archaeological sites and other points of interest on base maps Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 After the complete destruction of the village by occupation forces in 1944, villagers established kilns in appropriate locations to produce lime in order to re- build their houses Those kilns were abandoned after the re-construction took place. Their remains may be discovered today using the 1945 maps. After their proper reconstruction and preservation, they may be used as attraction sites or points of interest to researchers, hikers or visitors. Similar explorations may be made for other features of historical, archaeological, or cultural interest (old roads, trails, aqueducts, ruins etc.) Locations of lime kilns in Vlacherna, Arcadia, Greece (1945)
  17. 17. Core spatial data infrastructure and cultural heritage Depiction of archaeological sites and other points of interest on base maps Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 Courtesy: Dimitrios Kollintzas Venetian cadastral map of the Bezenico village, Arcadia, Greece, 1699 Current cadastral map of the Vlaherna (Bezenico) village, Arcadia, Greece, 2018
  18. 18. Integration of spatial data infrastructure with emerging technologies Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 Adopted from P. Partinevelos, 2015, Winning proposal of the 2015 Copernicus Masters NCMA Spatio-temporal Data Visualization Challenge https://www.copernicus-masters.com/winner/cybearth-first-person-visualisation-eo-data/ CybEarth: Information augmentation and display annotation functionality Emerging areas of interaction with traditional spatial data infrastructures • 3-D mapping (Laser- scanners, advanced 3-D data acquisition devices) • Augmented reality technologies • Virtual reality technologies • …
  19. 19. Summary and conclusions Lolonis P., 2018, “The role of the core geospatial information infrastructure in the protection and management of the natural and cultural heritage of Greece”, Echopolis2018, Athens, Nov 26-28, 2018 • The core spatial data infrastructure play an enabler’s role in the protection and preservation of the natural and cultural heritage of the country • The infrastructure may: o Expand the range and comprehensiveness of works that aim to safeguard the natural and cultural heritage o Provide/improve access to data to a very large range of actual and potential users o Reduce the time and difficulty of performing tasks related to the studying and protection of the sites of interest o Reduce the cost of carrying-out projects and activities that aim in the preservation and enhancement of the natural and cultural heritage Sample from the LSO-25 data set in coastal Greece

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