Zooming from her office, Michigan State University researcher Kelly Kapsar showed satellite images from across the United States. In some, different colors revealed the precise heights of the forested ridges in the Sierra Nevada or the craggy peaks of the Rockies and the valleys between them. Others showed the pine flatwoods of southern Florida or the smooth, rolling grasslands of the Kansas prairie.
The images were taken by the space shuttle Endeavour during a 2000 mission to make detailed radar maps of the planet's surface.
Endeavour orbited Earth 16 times a day during the 11-day mission. In that time, it took more than a trillion elevation measurements, generating 12.3 terabytes of data.
Since then, other Earth-observing satellites have measured things like temperature, rainfall, sea levels, carbon dioxide, snow cover, wind speeds and even dust—at scales ranging from the span of a continent to patches barely larger than a tennis court.
It's a treasure trove of data. By combining data captured from space with measurements of plants and animals taken on the ground, researchers hope to better predict where species are most likely to thrive in the years to come, said Phoebe Zarnetske, who directs MSU's Spatial and Community Ecology Lab (SpaCE Lab).
But there's a hitch, said Kapsar, a postdoctoral associate in the SpaCE Lab.
Too much data, too little training
While much satellite remote-sensing data is publicly available, taking advantage of it isn't straightforward for many researchers.
"We have so much satellite-based data now, but ecologists receive very little training on how to work with it," Kapsar said.
"Once you start downloading satellite data, it gets into hundreds of gigabytes and thousands of layers," Kapsar said.
That often requires technical expertise in supercomputing and big data analysis to process.
Why averages miss the landscape
There's another problem, Kapsar added. The statistical models scientists use to map where plants and animals are likely to live often require a single numerical value to characterize the environment. But from the perspective of, say, a vole or a beetle, summarizing a landscape in just one number doesn't tell the whole story.
To illustrate, Kapsar pulled up a series of satellite images showing the contours of the land around sites within the National Ecological Observatory Network (NEON), a 30-year research effort to monitor changes at 81 field sites across the U.S.
One NEON field site within the Sierra Nevada mountain range in California has an average elevation of 7,050 feet (2,150 meters). However, this number masks a lot of ups and downs, from towering 10,000-foot (3,050-meter) mountain peaks to valleys and meadows.
The same holds true when it comes to rainfall, Kapsar said. While annual precipitation at a NEON site near Las Cruces, New Mexico, in the northern Chihuahuan Desert stays fairly consistent at around 11 inches (28 centimeters) a year, rainfall at another site in Hawai'i can vary drastically from 80 to 160 inches (2 to 4 meters).
Also known as "geodiversity," this heterogeneity in the environment can mean a lot to the plants and animals that live there.
"If you think about the world like many animals do, they're not going to just take the average of a mountain landscape," Kapsar said. "They have to contend with questions: How steep is this cliff? Can I climb it? How many ups and downs are there? How bumpy is the terrain? Are there places for me to hide?"
"The temperature and precipitation within an area can vary with the topography and vegetation to produce microclimates, where only certain species can thrive," said co-author Lala Kounta, a climate scientist in the SpaCE Lab.
Tools for capturing geodiversity
Kapsar, Kounta, Zarnetske and collaborators are working on ways to provide geodiversity data to researchers and help close the gap.
Crunching massive amounts of satellite data on the MSU High Performance Computing Cluster in a new study, they provide a set of climate and elevation geodiversity metrics that capture more than just the mean. Researchers working at NEON sites across the U.S. can use them.
The research is published in the journal Scientific Data.
Originally developed for the field of surface metrology, the metrics include statistical measures of how "rough" or "smooth" precipitation, temperature and elevation are across the landscape. They are calculated using an open-source computer program developed by Zarnetske, MSU professor Kyla Dahlin and colleagues called "geodiv."
Their paper also offers a "how-to" for researchers who want to use satellite data to capture this complexity at other sites around the world and at different scales.
"The idea is to take the satellite's perspective from way up high in the sky and NEON's intensive data collection on the ground—catching bugs, listening for birds, sampling plants—and bring them together to get the best of both worlds," Kapsar said.
Publication details
Kelly Kapsar et al, Multi-scale environmental geodiversity: data for the National Ecological Observatory Network (NEON) with an adaptable workflow, Scientific Data (2026). DOI: 10.1038/s41597-026-07613-5
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Citation: From mountain peaks to microclimates, new maps bring satellite big data down to Earth (2026, August 7) retrieved 7 August 2026 from https://phys.org/news/2026-08-mountain-peaks-microclimates-satellite-big.html
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