COVER IMAGE CREDITS

Research page cover images — sources & credits#

All four cover images are NASA Earth Observatory imagery. NASA still images are generally not subject to copyright in the United States and are free to reuse, including commercially, with NASA acknowledged as the source. Sourced and license-verified 2026-05-30.

cover-urban-heat-ecostress-la.jpg#

• Theme: Urban Heat & Environmental Justice
• Title: California Heatwave Fits a Trend — ECOSTRESS land-surface-temperature map of Southern California (Sept 2020)
• Credit: NASA Earth Observatory images by Joshua Stevens, using data from the ECOSTRESS science team at NASA/JPL-Caltech, and data from Hulley, G. C., Dousset, B., & Kahn, B. H. (2020).
• Source: https://science.nasa.gov/earth/earth-observatory/california-heatwave-fits-a-trend-147256
• Direct image: https://eoimages.gsfc.nasa.gov/images/imagerecords/147000/147256/california_eco_2020250_lrg.jpg

cover-fire-viirs-california.jpg#

• Theme: Fire & the Carbon Cycle
• Title: California Burning — active wildfires and smoke plumes across northern California, VIIRS (Aug 19, 2021)
• Credit: NASA Earth Observatory images by Lauren Dauphin, using Landsat data from the U.S. Geological Survey and VIIRS data from NASA EOSDIS LANCE, GIBS/Worldview, and the Suomi National Polar-orbiting Partnership.
• Source: https://science.nasa.gov/earth/earth-observatory/california-burning-148731
• Direct image: https://eoimages.gsfc.nasa.gov/images/imagerecords/148000/148731/cafires_vir_2021231_lrg.jpg

cover-methane-airs-global.png#

• Theme: Global Methane Budget
• Title: A Global View of Methane — AIRS satellite-derived global atmospheric methane concentration map (Jan 2016)
• Credit: NASA Earth Observatory images by Joshua Stevens, using data from the Atmospheric Infrared Sounder (AIRS) team, the Environmental Protection Agency, and NOAA. Caption by Adam Voiland.
• Source: https://science.nasa.gov/earth/earth-observatory/a-global-view-of-methane-87681
• Direct image: https://eoimages.gsfc.nasa.gov/images/imagerecords/87000/87681/methane_air_2016001-2016031_lrg.png

cover-ecosystem-ndvi-drought.jpg#

• Theme: Ecosystem Resilience to Extremes
• Title: Dried Out Vegetation Across America — MODIS NDVI vegetation anomaly during the 2012 U.S. drought (Aug 2012)
• Credit: NASA Earth Observatory image by Jesse Allen, using data provided by the USDA Foreign Agriculture Service and processed by Jennifer Small and Assaf Anyamba, NASA GIMMS Group at Goddard Space Flight Center and the FAS Global Agricultural Monitoring (GLAM) Project. Caption by Mike Carlowicz.
• Source: https://science.nasa.gov/earth/earth-observatory/dried-out-vegetation-across-america-79316
• Direct image: https://eoimages.gsfc.nasa.gov/images/imagerecords/79000/79316/namericandvia_tmo_201208_lrg.jpg