Landsatohjelman

The Landsat program is a joint NASA and United States Geological Survey (USGS) program that provides the longest continuous archive of satellite imagery of Earth. Launched in 1972 with Landsat 1, the program has continuously monitored Earth's surface from space, offering invaluable data for understanding our planet. Landsat satellites are equipped with multispectral scanners that capture images in various wavelengths of light, including visible, near-infrared, and thermal infrared. This allows scientists to observe changes in land cover, vegetation health, water resources, and urban development over time.

The data collected by the Landsat program is freely and openly accessible to researchers, policymakers, and the public worldwide. This open data policy has fostered a vast community of users and has led to significant advancements in numerous fields. Applications of Landsat data include agricultural monitoring, forest management, disaster assessment, climate change research, and urban planning. The program's legacy is one of providing consistent, long-term observation of Earth, enabling a deeper understanding of the planet's dynamic processes and supporting sustainable resource management. Future Landsat missions aim to continue this critical data stream, ensuring ongoing monitoring and research capabilities.