“Landsat has allowed managers to observe regional trends in kelp canopy area and biomass across more than 30 years. This is very valuable.”

“The 30-year record of the Landsat sensors (i.e. TM, ETM+, and OLI) provides a unique data archive for studying the impacts of climate change on ecosystems worldwide, in our case, coastal marshes.”

“We believe this type of continuous mapping of forest metrics at expansive scales would not have been possible without the excellent radiometric characteristics of Landsat 8, particularly the high level of quantization and the outstanding signal-to-noise ratio, which enables fine distinctions that were not previously possible.”

“The Landsat archive and other remote sensing systems provide the means to map and measure disturbance rates of the last 40 years.”

“In the world of water resource management, Landsat has played a key role in providing objective and continuous data for the United States, particularly in the arid west. Water-related benefits of Landsat imagery are also reaped far beyond the United States’ borders in countries such as Chile, Australia, Morocco, Sudan, and Venezuela, which are using Landsat data to make informed decisions regarding natural resource allocation and use.”

“A growing archive of Landsat images allow us to see how quickly icesheets are changing.”

“In order to produce a rock outcrop map for the entire Antarctic continent, we required a freely available georeferenced multispectral dataset. The dataset needed to cover the high latitudes; be recently acquired; be of a high enough resolution to identify individual outcrops and geomorphological features; and have suitable coverage of the continent. On this basis, the Landsat 8 multispectral satellite data was chosen for analysis as no other platform met these requirements. It would not ha…

“The Landsat satellite program has provided images of the Earth’s surface for more than 40 years, and so it is ideal for documenting long-term changes in ecosystems such as giant kelp forests.”

“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.”

“What should be done with the old bird?”

“An alert system operating at the scale presented here depends on systematic global acquisitions, robust preprocessing, and free and accessible data. Only Landsat has these criteria at medium spatial resolutions, with Sentinel aspiring to emulate Landsat.”

“Because of Landsat’s global coverage and long history, it has become a reference point for all Earth observation work and is considered the gold standard of natural resource satellite imagery.”

“By analyzing 34 years of [Landsat] data, we estimated that about 56% of the rivers globally are affected by seasonal ice [and] that there is 2.5 percentage points decline of river ice globally during this time.”

“Landsat has undoubtedly transformed our ability to understand urbanization processes and how cities expand and evolve… the multi-spectrality of Landsat, its relatively high spatial resolution, its revisit period, and especially the long observational record that made millions of scenes publicly available, make Landsat a key asset for the research community.”

“The advent of Landsat data enabled an unparalleled increase in our understanding of the Earth system.”

“We recognize the essential role forests play in the long-term health of our planet, in contributing to sustainable development, and in meeting our shared goal of avoiding dangerous climate change. More than a billion people depend directly on forests for their livelihoods, and the remaining six billion of us depend on forests for a variety of economic, social, and environmental benefits such as the rainfall, biodiversity, pollinators, carbon storage, and clean water they provide. Forests a…

“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.”

“In a world of scarce resources, there are distinct tradeoffs in costs and benefits of land use, and whether to conserve or convert forest to cropland. Map-based images are perhaps one of the most succinct means of helping policymakers digest complex ideas of social and economically driven environmental change.”

“If you don’t do the calibration right, you can’t do anything else.”

“The economic and scientific benefits to the United States of Landsat imagery far exceed the investment in the system.”

“Landsat offers a globally consistent data set with a short enough revisit time to allow us to consider the percent of time that surface water is present on an annual and seasonal basis, while its 30 meter resolution also enables detection of smaller ponds and rivers, providing greater connectivity.”

“The Landsat satellites have also proved to be very useful, particularly for trying to do more detailed, finer-scale risk mapping.”

“Landsat pays dividends not only to the prosperity of the global economy, but also to people and planet.”

“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.”

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.