Satellite observations
Current information
The latest satellite observations can be found Tarkka service (Tarkka.syke.fi)
More information Syke's EO wiki (ymparisto.fi)
Satellite observations are an essential part of the renewed environmental monitoring, which aims to utilize automatic monitoring methods in various monitoring programs. Satellite observations can be used to monitor the state of the environment and interesting phenomena brought about by seasonal changes on a daily basis. They can also be used to prepare long-term comprehensive status assessments of the water areas, which are used, among other things, in status assessments of lakes, the coast and the open sea. Status assessments can be used, for example, for monitoring obligations set by the Nature and Water Framework Directives and the Marine Strategy Framework Directive and the Restoration Regulation.
Satellites can be used to make comprehensive observations of large sea and land areas or to focus on a specific detail. The images clearly show, for example, large areas of blue-green algae, turbid river estuaries, ice conditions in lakes, areas covered by snow, forests, cities and fields.
We are developing automatic interpretation methods using machine learning methods, among other things. We are actively developing methods for estimating water quality variables in lakes, on the coast and in the open sea. Machine learning methods are also used for land cover interpretation, especially for habitat types. Other method development targets include the identification of lake ice and the area covered by snow. Method development for better identification of clouds is also strongly related to snow identification.
Syke mainly utilizes open satellite data provided by the EU Copernicus program (copernicus.eu) and NASA (nasa.gov) as source data for research and monitoring data. We also use some more accurate satellite data from commercial operators.
License
The satellite data provided by Syke is covered by the open data license.
Interfaces
The interfaces to the satellite data provided by Syke can be found on the Interfaces page. In addition, metadata for the data can be found in the Syke's metadata portal (ckan.ymparisto.fi).