Quotes to Note


“We need to drive towards building sustainable cities and human settlements, and this depends on how well we measure these areas and how well we can predict the growth in all these cities in the future. I believe Earth observation and geospatial technologies give us the tools needed in order for us to grow in this direction.”

— Robert Ndugwa, Chief of Data & Analytics, UN-Habitat, Mapping our human footprint from space, Nov 11, 2021

“The [Landsat-informed] World Settlement Footprint is a great example on how we can mobilize the data revolution for the benefits of all countries and cities, leaving no one behind, which is one of the leitmotifs of the 2030 agenda on sustainable development.”

— Marc Paganini, ESA, Mapping our human footprint from space, Nov 11, 2021

“The availability of continuous data streams of high quality and free of charge satellite observations such as the Sentinels of the European Copernicus program and the Landsat missions, in combination with the emergence of automated methods for large data processing and data analytics, and the democratization of computing costs, offer unprecedented opportunities to efficiently monitor the changes and trends in urban development globally.”

— Marc Paganini, ESA, Mapping our human footprint from space, Nov 11, 2021

"[With Landsat 8 and 9 together,] we get really great-quality data every eight days. That’s going to be a boon, especially for water quality applications.”

— Jeff Masek, NASA Landsat Project Scientist, Satellites Can Spy a Menace in West Africa: Invasive Flowers, Wired Magazine, Oct 26, 2021

“We’re power users of Landsat.”

— Daniel Irwin, SERVIR global program manager and research scientist at NASA Marshall Space Flight Center in Alabama, Satellites Can Spy a Menace in West Africa: Invasive Flowers; Wired Magazine, Oct 26, 2021

“Our research would not have been possible if it weren’t for decades of reliable Landsat data to help us look back in time. We hope these findings will encourage people to not only mitigate the effects of increased wildfire activity, but also to limit emissions and curb global warming.”

— Mohammad Reza Alizadeh, lead author, McGill University, Climate Change Pushes Wildfires to New Heights, Sep 2, 2021

“I’d go to meetings and people were just jumping up and down because they had discovered another use for the data.”

— Virginia T. Norwood, talking about early Landsat data, The woman who brought us the world, MIT Technology Review, Jun 30, 2021

“We are in this unique position where we have ice core records from these mountaintops, and Landsat has these detailed images of the glaciers, and if we combine those two data sets, we see clearly what is happening.” 

— Lonnie Thompson, professor of Earth Sciences and senior research scientist at Ohio State’s Byrd Polar and Climate Research Center, Mountaintop Glacier Ice Disappearing in Tropics Worldwide, Jun 28, 2021


Landsat satellite imagery is ideal for gauging vegetation cover shifts because it supplies spectral data for surface areas of about 90 square meters – fine enough to track changing spectral signal patterns across large study areas. 

— Stijn Hantson, Project Scientist, UCI Department of Earth System Science, Landsat Shows Plant Die-Offs in Southern California Driven by Climate Change, Jun 21, 2021

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

— Meredith McPherson, University of California, Santa Cruz, Monitoring the Collapse of Kelp Forests, Jun 4, 2021

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

— Indira Bose, Wolf Water Resources, South Asian Farmers Fine Tune When to Water with Landsat, Apr 20, 2021

"If you really want to have a long history of understanding any process in the Earth, Landsat is where you should go."

— Tasso Azevedo, MapBiomas Initiative, Tracking Amazon Deforestation (video), Apr 19, 2021