Quotes to Note


"Continental scale applications of medium and high-resolution earth observation data are becoming increasingly important and feasible, driven largely by free and open access to the Landsat archive...the Landsat archive offers a temporal dimension for decades long retrospective analysis and ongoing monitoring capabilities."

— Sagar et al., 2018, Remote Sensing, Mar 20, 2018

"With these new [Landsat] data, we can begin to unravel the mechanisms by which the ice flow is speeding up or slowing down in response to changing environmental conditions.”

— Alex Gardner, research scientist at JPL, on mapping Antarctica's ice movement with Landsat, New Maps Highlight Antarctica’s Flowing Ice, Mar 12, 2018

“It’s a fantastic time to be a user of satellite data, if you’re in that moderate resolution domain this is amazing. The Sentinels and Landsat together is going to be really a game changer. It truly is.”

— David Roy, Professor at South Dakota State University’s Geospatial Sciences Center of Excellence, Landsat In Action—Landsat’s Calibration and Validation, Feb 27, 2018

"The fact that USGS and NASA makes this archive freely available, seems to me to be an inestimable service to the world, and the research community in particular."

— Grayson Cooke, Australia-based media artist; commenting on the Landsat archive, Artist Grayson Cooke Explores the Forces that Shape Earth with Landsat, Feb 22, 2018

"Sterling service of over four decades of Earth Observations. No ifs, no buts, just a long-term mission to aid science & society."

— Prof. Chris Rizos, Geodesy & Navigation at University of New South Wales; commenting on the Landsat 8 5-year anniversary, Twitter, Feb 14, 2018

“With Landsat we can see temperature of individual fields and how it varies from field-to-field. The temperature of the land surface gives us a good indication of how rapidly water is evaporating off that surface. And this is really important for knowing how healthy the crops are and also for supplying information for irrigators: how much water was used last week and how much do they need to replenish in the current week to keep the crops healthy.”

— Martha Anderson, U.S. Department of Agriculture and Landsat Science Team member, Landsat In Action—Monitoring Crop Land with Martha Anderson, Feb 5, 2018

“The data policy for Landsat was a paradigm shift for the world. There is no doubt about it.”

— Barbara Ryan, Director of GEO, USGS Landsat in Action video, Jan 23, 2018

“Anything that’s historic, it’s got to be Landsat. In temporal depth, Landsat is really the only game in town.”

— Mike Wulder, Canadian Forest Service, on historical land use change, USGS Landsat in Action video, Jan 16, 2018

“We’ve got this data of every field, of every country…. the archive is just going to continue to yield good information, good science, better management, reduce costs. It’s incredible.”

— John Schott, Rochester Institute of Technology, on the Landsat archive, USGS Landsat in Action video, Jan 9, 2018

“It’s a fundamental resource for the Australian community. It’s used at local government level, state government level, and national levels. It’s our most important Earth-observing satellite with out a question in my mind.”

— Adam Lewis, Geoscience Australia’s Acting Chief Scientist, on the Australian archive of Landsat data, USGS Landsat in Action video, Jan 2, 2018

“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.”

— Andrew Elmore, University of Maryland Center for Environmental Science, USGS Landsat in Action video, Dec 14, 2017

"We have mapped then analyzed the area of forest converted each year to industrial oil palm and pulpwood plantations from 2001 to 2016, looking mainly at land under company management – that is, concessions. We use LANDSAT satellite imagery to monitor the annual expansion of plantations. We combine this information with annual maps of forest loss also derived using LANDSAT satellites by Matthew Hansen’s research group at the University of Maryland. The Hansen dataset, as we call it, produces very accurate tree loss maps over the humid tropics, and combined with a good forest mask, reveals where old-growth forests have been cleared...By combining our annual maps of plantations with this forest loss dataset, we can extract the area of forest converted each year to industrial plantations by producing companies. This is what we call company-driven deforestation."

— David Gaveau, co-creator of the newly updated Atlas of Deforestation and Industrial Plantations in Borneo, CIFOR Forest News, Nov 30, 2017