Forest cover change detection by satellite scenes
Since the beginning of the 21st century, the forests in Slovakia - and especially spruce forests - are under serious pressure from windstorms and subsequent bark beetle outbreaks. These injurious agents usually affects forest stands at a scale which enables change detection even from the space. Therefore, the main objective of this web site is to visualize actual and historical satellite compositions of Slovak territory in order to allow users to monitor forest stands state and to identify ongoing changes.

Target groups:
  • state forestry administration
  • forest managers

Map applications The web map applications are a key part of this web site. Map applications visualize actual and historical compositions of satellite scens, which are usefull for visual interpretations of forest cover changes.
The applications run in web browser. The boundaries of state forestry administration units (OLÚ), forest districts (LHC) and forest stands (JPRL) can be displayed as well in order to localize identified changes.


The web site is maintained with support of following agencies and organisations: ASFEU - project CEGIS - Centre of excellence for decision support making in forest and landscape (ITMS 26220120069), Slovak Research and Development Agency with contract No. APVV-0670-07 and Ministry of Agriculture and Rural Development of the Slovak Republic (project EPOL II).

When using data from this web site or web map applications, please cite the following paper: Barka, I., Bucha, T., 2010: Satellite-based regional system for observation of forest response to global environmental changes. In: Horák, J., Halounová, L., Hlásny, T., Kusendová, D., Voženílek, V. (eds.): Advances in Geoinformation Technologies 2010. Technical University of Ostrava. 2010, p. 1–14.
The mosaics of Landsat scenes from 2017 was replaced by mosaics of scenes from Sentinel 2 satellite in the map applications 2, 3 a 4. Both layers, derived from Sentinel 2 scenes, have spatial resolution of 10 meters.
Classification of forest stand state 2017 was updated in the map applications 2, 3 a 4..
In case of questions please contact us by e-mail:
Tomáš Bucha
Ivan Barka
Landsat scenes are the main data source in our web map applications.
Credit: Landsat satellite data courtesy of the U.S. Geological Survey (USGS).
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