Quotes to Note


"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

"The first step of ecosystem accounting is to actually map the dynamics of ecosystems over time."

— Celio De Sousa; NASA research scientist who uses Landsat data to create countrywide land cover maps, Economics of Nature: Mapping Liberia’s Ecosystems to Understand Their Value, Mar 11, 2021

"I do sleep, but I dream of Landsat!" 

— Justin Braaten, data scientist and prolific Google Earth Engine coder, Twitter , Feb 25, 2021

"Without Landsat, we’d still be in the Dark Ages of tracking global forest carbon using spreadsheet models."

— Dr. Nancy Harris, Global Forest Watch, Quantifying Forests’ Impacts on Global Carbon Budget with Satellites, Feb 11, 2021

"The Landsat Program continues to be one of the most valuable, respected, and referenced Earth observation programs in the world."

— Ellie Leydsman McGinty, UtahView State Coordinator, Mapping Landsat's Long History, Jan 27, 2021

"That is one cool thing about Landsat... people are always finding new applications."

— Jeff Masek, Landsat 9 Project Scientist, NOVA Now podcast, Dec 17, 2020

"[Landsat] became freely available in 2008 and I think that that completely changed how we are able to use this type of data for decision making."

"This global census can help identify other lakes in need of monitoring or remediation, Dr. Shugar said. 'We hope that it allows governments to see where the hot spots might be for glacial lakes growing in the future.'"

— Dan Shugar, glaciologist at the University of Calgary, speaking of his Landsat-based glacial lake inventory, New York Times, Oct 2, 2020

"Whether it’s since 1985 or 2000, we see this greening of the Arctic evident in the Landsat record."

— Logan Berner, a global change ecologist, Northern Arizona University, Flagstaff, Warming Temperatures are Driving Arctic Greening; NASA, Sep 23, 2020

"LANDFIRE is the only complete, nationally consistent collection of spatial resource datasets with an ecological foundation."