“The tracking of over-irrigated areas for targeting irrigation advisory texts was completely dependent on Landsat TIR data.”


“We hope to accelerate innovation in climate research, humanitarian relief, and disaster preparedness efforts around the world by making Landsat data readily available near our flexible computing resources.”


“Landsat is indispensable for Timelapse in Google Earth—and so much more. Thank you @USGSLandsat @NASA_Landsat program, the world’s only long-term, continuous, data record of the entire Earth’s land surfaces dating back to 1972.”


“We have recognized for the first time that we’re not just going to do one more, then stop, but that Landsat is actually a long-term monitoring activity, like the weather satellites, that should go on in perpetuity.”


“The quality of the Landsat 8 images is simply amazing!”


“The key role of Landsat in the context of climate change is to document the impact of climate change on global ecosystems, which is highly relevant for the future availability of food, water, and fiber resources, as well as the provision of ecosystem services including biodiversity.”


“By using Landsat 8 imagery, and classification tree analysis, which is an advanced artificial intelligence routine, we have been able to construct a reliable classification system to identify cheatgrass infestations that is accurate. This has implications for fire susceptibility. Cheatgrass is driving wildfire on rangelands and we need to identify areas that have heightened susceptibility to wildfire.”


“The value of Landsat data is internationally recognized as indispensable to science, natural resource management, commerce, security, foreign policy, agriculture, and education.”


“Landsat satellite data are the most important source we have about how much deforestation happens each year across the Amazon.”


“Thanks to satellites and to science, we now know much more about Earth than we did on the first Earth Day fifty years ago.”


“The majority of tropical countries are using Landsat imagery as the primary source of information to support their forest change assessments.”


“Satellite imagery can be used retrospectively, meaning that the data collected by satellites today will probably help solve issues we are not currently even aware of—an advantage which is invaluable.”


“We are looking forward to new exciting data to complement Landsat observations and to collaborative research—especially because ESA followed USGS in its open data policy.”


“We use Landsat images on a daily basis at SkyTruth for environmental monitoring.”


“We hope to accelerate innovation in climate research, humanitarian relief, and disaster preparedness efforts around the world by making Landsat data readily available near our flexible computing resources.”


“Landsat 8 global ice mapping is enabled by its better data acquisition rate.”


“Having a carefully calibrated multi-satellite record allows us to ensure that we are recording changes to the Earth, and not simply changes in the instrument response. The more detailed observations from Landsat 8 and Landsat 9 allow these subtle changes to be teased out of the long-term record unambiguously.”


“You can launch a new satellite, but you can’t put something up in the past. Landsat will always be that historic record that new satellites can tie themselves to.”


“Landsat represents a public good, Earth-observation infrastructure that allows everyone to study their respective land resources and their change over time.”


“Until we made the map of coral reefs with Landsat 7, global maps of reefs had not improved a lot since the amazing maps that Darwin drafted.”


“There are roughly 400 billion land pixels in a single [Landsat] global mosaic.” (With at least one image of every location on Earth per season every year, the entire 43-year Landsat record contains more than 50 trillion pixels.)


“The success of a mission, and the societal benefits it creates, relies on many factors, including design, manufacture, launch, and operation of the sensor. However, it also includes data acquisition, accessibility, availability, and continuity, all of which are embodied by the Landsat program.”


“The Landsat mission has been monitoring Earth from orbit for more than 40 years. It is by far the longest continuous record of the surface of the planet, and certainly one of the most valuable data sets in existence.”


“The most unique thing about Landsat is its length of record… The ability to go back 30 years or more is something you just can’t do with any other sensor.”


Landsat 9 bw
Landsat 9 bw
Landsat 9 bw

The NASA/USGS Landsat Program provides the longest continuous space-based record of Earth’s land in existence. Landsat data give us information essential for making informed decisions about Earth’s resources and environment.