Landsatsatelliitteja

Landsatsatelliitteja refers to the Landsat program, a series of Earth-observing satellites jointly managed by the United States Geological Survey (USGS) and NASA. The Landsat program is the longest-running enterprise for capturing satellite imagery of Earth. Its mission is to collect data to monitor land use and land cover changes, natural resources, and environmental conditions across the globe.

The first Landsat satellite, Landsat 1, was launched in 1972. Since then, a total of nine satellites have been launched, with Landsat 9 being the most recent, launched in 2021. These satellites are equipped with various sensors that capture data in multiple spectral bands, allowing for the observation of different aspects of the Earth's surface, including vegetation health, water bodies, urban development, and geological formations.

The data collected by Landsatsatelliitteja is freely available to the public, researchers, and policymakers worldwide. This open data policy has made Landsat imagery an invaluable resource for a wide range of applications, including agriculture, forestry, water management, disaster response, and climate change research. The continuous stream of data from the Landsat program provides a unique historical archive, enabling scientists to track environmental changes over decades and understand long-term trends. The program's longevity and the consistent data quality have established it as a cornerstone of Earth observation.