Orthophotomosaic of Slovakia

The vast majority of decisions made within public administration have a spatial aspect. For this reason, it is essential that the public administration has accurate, reliable and up-to-date spatial data. In view of the rapidly changing landscape, mainly due to human activity, spatial data needs to be collected and updated using methods that are highly efficient, effective and fast. Such methods also include airborne imagery which results are processed into digital orthophotographs or orthophotomosaic. In view of the above, the Ministry of Agriculture and Rural Development of the Slovak Republic and the Geodesy, Cartography and Cadastre Authority of the Slovak Republic agreed on joint cooperation in the creation of the Orthophotomosaic of the Slovak Republic. Subordinate organizations - National Forest Centre (NLC) and Geodetic and Cartographic Institute Bratislava (GKÚ) were entrusted with this implementation.

The first production cycle (2017-2019) of the orthophotomosaic was completed in 2020. The airborne imagery was taken in the western part of Slovakia in 2017, in the central part of Slovakia in 2018 and in the eastern part of Slovakia in 2019.

The second production cycle (2020-2022) of the Orthophotomosaic was finished in 2023. The airborne imagery was taken in the western part of Slovakia in 2020, in the central part of Slovakia in 2021 and in the eastern part of Slovakia in 2022.

The third production cycle (2023-2025) of the Orthophotomosaic has begun in 2023. The airborne imagery was taken in the western part of Slovakia in 2023. In the central part of Slovakia airborne imagery will be take in 2024 and in the eastern part of Slovakia in 2025.

Plan for airborne imagery of the Slovakia territory in the 3rd cycle:

Overview of the division of the actual Orthophotomosaics of the Slovak Republic RGB variant in ZIP files for download

Data of a smaller extent, up to 20 map sheets, are freely downloadable through the MAPKA application. More information HERE. Orthophotomosaic data shall be subject to the Terms and conditions of provision and use of Orthtophotomosaic.

Overview of airborne imageries, from which Orthophotomosaic of Slovakia 2023-2025 (3rd cycle) was created, together with the exact date of their creation is available in ESRI Shapefile format for download HERE.

Orthophotomosaic map sheet layout
Orthophotomosaic map sheet layout (administrative borders exluded)

Orthophotomosaic in web application MAPKA:

• How to work with Orthophotomosaic in QGIS application (Slovak only)
• How to connect georeferenced rasters to application Bentley MicroStation V8i (Slovak only)
• How to connect georeferenced rasters to application Kokeš (Slovak only)
• How to convert raster from format RGBN to RGB in IrfanView (Slovak only)