Landsat’s Role in Managing Ecosystems and Biodiversity
Our world is made of complex networks of living things and physical elements that constantly interact and affect each other. Such networks are known as “ecosystems.” Healthy and economically important ecosystems such as temperate forests, wetlands, grasslands, coastal zones, coral reefs, and rainforests all play roles in human life. For example, farm and rangeland ecosystems must be healthy to produce the grains and livestock on which we depend as a nation. Marine ecosystems depend on the health of land ecosystems, because coastal areas provide habitat needed to support the productivity and diversity of aquatic organisms. Landsat has brought valuable capabilities to ecosystem studies. Landsat instruments measure reflected light in visible and infrared wavelengths. Because plants reflect little visible light and a lot of infrared light when they are healthy, the measurement of both types of light simultaneously gives scientists a way to assess plant health and density over a landscape. Measurements are detailed enough while still covering a wide area that ecologists can expand their interpretations of local events and processes, such as an insect infestation in a specific forest, to a regional scale. This helps them to gauge the health of larger ecosystems. Because Landsat data are accurately mapped to reference points on the ground and adjusted for topographic relief, they can be integrated with other geographic data sets and models to explore more complex studies of ecosystems and biodiversity across space and time.
Data in Harmony: NASA’s Harmonized Landsat and Sentinel-2 Project
NASA’s Harmonized Landsat and Sentinel-2 (HLS) project is a groundbreaking initiative that combines data from Landsats 8 & 9 with the European Space Agency’s Sentinel-2A & 2B satellites.
Expanding OpenET Across Amazon Basin
The research teams who help sustain the largest freshwater reserve in the world are developing a new tool to promote more resilient farming systems in Brazil. The goal is to help farmers better handle changes in the water cycle, deal with droughts, and adapt to a changing climate.
Satellites Show How Drought Changes Wildfire Recovery in the West
A new study using NASA satellite data reveals how drought affects the recovery of western ecosystems from fire, a result that could provide meaningful information for conservation efforts.
Landsat 2023 – A Year in Review
A delve into Landsat-based studies revealing the environmental impact of river mining, the decline in global lake water levels, and the risks of rising sea levels on coastal habitats. Plus, a sneak peek at what the future of the Landsat program holds with the introduction of Landsat Next.
OpenET Study Helps Water Managers and Farmers Put Landsat to Work
As the world looks for sustainable solutions, a system tapping into Landsat data for water management has passed a critical test.
Landsat Helps Prioritize Conservation Areas for Australia’s Gliding Possums
Using satellite data, including Landsat, Griffith University researchers found that less than 13 percent of the endangered greater gliders’ habitat in Queensland is protected.
