Quotes to Note

 

“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

"Without Landsat we would not have the record we have today about deforestation and changing agriculture across a vast and important biome."

— Doug Morton, Chief of the Biospheric Sciences Lab at NASA's Goddard Space Flight Center, Tracking Amazon Deforestation (video), Apr 19, 2021

"The value of the Landsat archive is that we have a long-term memory of the changes that have occurred across the Amazon frontier."

— Doug Morton, Chief of the Biospheric Sciences Lab at NASA's Goddard Space Flight Center, Tracking Amazon Deforestation (video), Apr 19, 2021

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

— Doug Morton, Chief of the Biospheric Sciences Lab at NASA's Goddard Space Flight Center, Tracking Amazon Deforestation (video), Apr 19, 2021

"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."

 

— @googleearth, Twitter, Apr 15, 2021

"Landsat provides an unparalleled record of how terrestrial Earth has changed since the early 1970s, closely coinciding with the beginning of rapid environmental change. It provides important historical context for the current state of land cover and land use and provides a reference for identifying abnormal types and rates of change."

— Justin Braaten, Google Earth Engine technical writer/coder, Justin Braaten has the Code, Mar 25, 2021

"I’m grateful that NASA, USGS, and scientists like William Pecora had the foresight to begin collecting Earth observations a half century ago."

— Justin Braaten, Google Earth Engine technical writer/coder, Justin Braaten has the Code, Mar 25, 2021