Quotes to Note


"Because Landsat's been operating for so long—thermal imaging has been enabled since the 1980s—we can study how patterns in water use have changed over the landscape over long periods of time as the climate has changed and as land use patterns have changed. So Landsat has been really a critical sensor for our work."

— Dr. Martha Anderson, USDA Researchers and Landsat Science Team Member, Landsat Gives Epidemiologists Key Insights, Apr 22, 2020

“The archive is just going to continue to yield good information, good science, better management, reduced costs... The biggest contribution of Landsat will be that archive.”

— Dr. John Schott, professor at the Rochester Institute of Technology, Free, Open Landsat Data Unleashed the Power of Remote Sensing a Decade Ago, USGS EROS, Apr 17, 2020

“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.”

— Dr. Michael Wulder, Canadian Forest Service and Landsat Science Team member, A Landsat Milestone: One Hundred Million Downloads, Mar 13, 2020

"@USGSLandsat @NASA_Landsat wrote the book on open data, how to do it right, how it creates businesses and benefits economy, and — of course — gifts the world with a 4+ decade *scientific* record of our planet's changing dynamics."

— Chris Herwig, Google GeoData Engineer, on 100 millionth Landsat download from USGS, Twitter, Mar 11, 2020

“A 35-year dataset in marine biology is really hard to find... But we need long-term data to understand climate change and how it impacts populations. This was an exponential increase in the amount of information available about kelp forests in Oregon.”

— Sara Hamilton, OSU marine biologist , on the importance of Landsat data for her work, Landsat Boosts Understanding of Climate Change’s Impact on Kelp, Mar 5, 2020

"Using Landsat images, an epidemiologist can build dynamic prediction models that take into account sudden environmental changes which may increase the risk of disease spread."

— Dr. Donal Bisanzio, senior epidemiologist with RTI International, Landsat Gives Epidemiologists Key Insights, Mar 5, 2020

“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.”

— Xiao Yang, paleoclimatologist, University of North Carolina at Chapel Hill, River Ice Is Disappearing, Eos, Feb 25, 2020

"Even though I have a book coming out about the Moon Landing, I'll say it: Landsat is likely the greatest, most impactful, yet under-appreciated, accomplishment of the entire space age."

— Dr. Danny Bednar, Assistant Professor in the Department of Geography, Western University, {From the Twittersphere}, Jan 22, 2020

"The results of the Scopus bibliometric analysis indicate that inland water quality remote sensing has been growing dramatically since its introduction in the 1970s...The most pronounced year-on-year jump occurs right after 2008, which corresponds to the public release of freely available Landsat imagery by NASA and the US Geological Survey...This result is consistent with previous research showing that for multiple earth observation fields, the release of the Landsat archive resulted in more frequent and larger-scale studies."

“The opening of the Landsat archive in 2008 was pivotal... We now have the best available map of disturbances for the United States.”

— Sean Healey, an ecologist with the USFS Rocky Mountain Research Station, Spotting the Spotted Owl: 30 Years of Forest Disturbance, NASA Earth Observatory, Dec 23, 2019

"By combining the 34-year record provided by Landsat [30 m] with climate data, we can now quantify relations between water availability and vegetation dynamics in ways that were not previously possible."

— Dr. Christine Albano, ecohydrologist at the Desert Research Institute, When a River Runs Through Drylands, Dec 13, 2019

"The availability and accessibility of remotely sensed digital imagery obtained from Landsat satellites allow coastal scientist—and more importantly community members—the opportunity to map, evaluate and continuously monitor shoreline movement at regular intervals given the unprecedented pace of Arctic climate change."

— Dr. Ravi Darwin Sankar, geologist with the Arctic Institute of North America & the University of Calgary in Canada, Coastal Change in the Northwest Territories, Dec 12, 2019