Fundamental Base of Geographic Data of the Czech

Fundamental Base of Geographic Data of the Czech Republic (ZABAGED®) and Database of Geographical Names (Geonames) Pavel Šidlichovský 30 th September 2010

ZABAGED® - basics • • • Legal frame in law no. 200/1994 about surveing Digital topographic model of the Czech Republic territory Level of details matches the scale 1: 10 000 „Spaghetti“ model (lines, centroids, + areas added in new platform) Organized in three levels 8 categories of objects 122 object types ca. 350+ attributes 2 D planimetry component and 3 D altimetry component (contours and elevation)

Content of ZABAGED ® in categories Feature type categorization: 1. Build-up areas 2. Transport networks 3. Energy and product networks and pipelines 4. Hydrography 5. Administrative units, including enviromentaly protected areas. 6. Landcover 7. Terrain 8. Geodetic control Object catalog of ZABAGED® is living document, updated to describe current state of distributed types

ZABAGED® - periods of development 1994 – 1995 Scanning of analogue map master films 1994 – 2005 Creating and first updating the Fundamental Base of Geographic Data (ZABAGED®) 2000 – 2006 Generating of the Basic Map 1: 10 000 from ZABAGED® 2006 – 2009 q Fundamental technology upgrade of database maintenance and updating platform q 3 years updating cycle q Continuous updating of selected objects q New object classes (street names, address points) q Steps toward Integration (Geonames, ……) 2009 Finishing the generating of all basic medium scale maps derived from ZABAGED®

Information sources for updating ZABAGED • Aerial imagery and orthofotos (geometry of most objects) • External databases – cooperation with data creators o Czech statistical office (CSÚ) : cooperation on improving and continuous maintenance of adress points dataset, street names and lowest level administrative units o Road and motorway directorate (ŘSD): cooperation on maintanance ofinformation about road networks and related objects o Central evidence of water bodies (CEVT), managed under Ministry of agriculture, distributed to riverbasin directorates: pilot project with Elbe basin o Transport research centre (CDV): information on raiload stations, basic railroad network identifiers, airports. o Forest Management institute (UHUL): Usage of their WMS service o Agency for nature conservation and landscape protection of the CR (AOPK) : provides nature preserves boundaries o Czech office for surveying mapping and cadastre (COSMC): update of building in testing. Cadastral boundaries, so far accessed just in WMS and „interpreted“ into our data • Internet (lists of schools, post offices, government offices) • Field revision ( if everything else fails…)

Workflow of periodic updating 2) Terrain survey 3) Data updating repeat in three years 1) Preparation phase • change detection using various sources 4) Commiting changes to central base 5) Data presentation through: “geoportal. cuzk. cz”

Updating cycle of ZABAGED

ZABAGED, organizational structure Depatment of updating Depatment of updating Data collection section ZABAGED ZABAGED Database section ZABAGED • • • System administration Cooperation with external databases System development • 7 regional work places a 8 -16 people • mainly terrain survey and periodic updating WAN COSMC XML/HTML (4 Mbs) Aplication server Database server Data storage (disc array) 20 clients 75 clients at regional branches local raster (ortophoto) data storage

Geographical distribution WAN 4 Mb/s Liberec Praha Pardubice Plzeň Opava Brno České Budějovice

System architecture Microstation V 8 XM Edition, Client . NET 1. 1 proprietary SW HW: PC IV; 1 -2 GB RAM, grafic Dir. X 9. 0 c compatible XML/ HTML cca. 100 clients HTTP(s) Aplication server Oracle Aplication Server 10 g; J 2 EE framework WFS, +Proprietary software SQL Database server HW: HP Proliant DL 850 G 5, 1 Xeon 3 Mhz (quad core), 8 GB RAM DB Oracle 11 g EE (11. 2. 0. 1); Oracle Spatial; Oracle Workspace manager HW: HP Proliant G 5, 4 Xeon 3 Mhz (quad core), 64 GB RAM

Production environment

Visualization on geoportal. (WMS)

Geonames • Geographical names are standardized by authority, which is The Commision on Geographical Names of COSMC • Commision cooperates with UNGEGN (United Nations Group of Experts on Geographical Names) and participates at Eurogeonames project • Geonames is a database, tool used for registering the standardized names as well as for easy access to the data. • Principal scale for witch the names are standardized is 1: 10000

History of standardization • Work started at 1931, for map 1: 75000 • Since 1958 work is done for 1: 10000 base maps • Up to the 1998 the information was maintained on paper cards • During period 1998 -2005 information was verified and stored in database • 2005 -2008 there was an updating cycle going on, which coresponded to updating of ZABAGED and regional topografic departments were involved. • 2009 – integration step between ZABAGED and Geonames, shift towards database of names of geographical objects, from database of names for base maps.

ZABAGED/Geonames integration Geonames before: • database of names on base map, so many instances of one name, as was printed on base map sheets. ( larger objects= many instances ) • Each name had its cartographic position and rotation • Good for map production, not so good for web seamless presentation. Geonames after: • Only single name for geographical object, with relation to corresponding graphic elements in ZABAGED , where aplicable, or relation to fictitious object created in geonames • Position and rotation of text has to be derived by aplications

Future goals • • Shift from periodic to continuous updating of ZABAGED Even closer integration with Geonames Integrating keys – links to thematic databases Better accuracy through better reference orthoimagery, laserscan „imagery“ and cadastral data • Availability through web technologies • Seamless at state borders ! (Inspired idea )

Thank you for your attention.