October 2024

Seeking Next Landsat Science Team

A Request for Proposal (RFP) to be part of the 2025–2029 Landsat Science Team was released by USGS and NASA on Oct. 18. Proposals are due by Dec. 17, 2024.

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What Landsat Means for Water Rights

October 29, 2024

A wheel line irrigation system in Idaho.

With Landsat-based ET embedded in more and more water rights and conservation tools, the Western States Water Council is eager to see Landsat Next with its higher spatial resolution, more frequent observations, and additional spectral bands, built and launched. Tony Willardson is the executive director of the Western States Water Council. He speaks with writer Laura Rocchio about how the Council uses Landsat in its work.

Tony Willardson, Water Watcher
Thumbnail image for a video titled, "Guardian Landsat - Firewatch" that features a hazy orange graphic with green trees at the bottom and a mountain in the background.

November 1, 2024

How Landsat Monitors Wildfires



Wildfires are a powerful force, reshaping landscapes in hours. Landsat satellites have been tracking these fires for decades, helping scientists understand and manage wildfire risk, map burned areas, and monitor ecosystem recovery—all from space.

A Landsat 9 image of he atoll Takaroa in the South Pacific.

October 30, 2024

Taking the Temperature of Atoll Lagoons



Monitoring the sea surface temperature of tiny atoll lagoons is important for the local economy and ecosystem of French Polynesia. A new study (Wynsberge et al. 2024) shows that Landsat's thermal data can help capture the changes in these remote, hard-to-reach locations.

“[W]e estimated the total direct Landsat value to registered Landsat users was $25.63 billion in 2023. However, the economic benefits to direct users are just one part of the total benefit generated by Landsat imagery.”

 

Loomis et al., 2024, October 18, 2024

Economic Valuation of Landsat and Landsat Next 2023 

Reaching Out

Participants in the NASA Space Apps challenge gather in Hermosillo, Mexico

November 1, 2024

Landsat at NASA Space Apps Challenge



Participants in Hermosillo, Mexico participated in the NASA Space Apps Challenge to create an easy-to-use app to access and download Landsat data. The annual hackathon engages participants around the world to use NASA data to creatively approach challenges on Earth and in space.

The NASA booth at The Wildlife Society

November 4, 2024

Wildlife Biologists Learn About Landsat



The Landsat Outreach team attended The Wildlife Society’s meeting in Baltimore, Maryland, to educate attendees about ways to use Landsat data in their research.

PUBLICATION SPOTLIGHT


Contemporary fires are less frequent but more severe in dry conifer forests of the southwestern United States



| McClure et al., 2024


By bringing together historic tree-ring fire records with contemporary Landsat-based fire information for Arizona and New Mexico, researchers have found that fires since 1985 are occurring less frequently than they historically did from 1700-1880, however, fire severity has greatly increased and often results in high tree mortality unlike the past. This research has direct implications for U.S. southwest land and wildfire management. While it has been established that wildfire activity has recently intensified with climate change, the comparison of that shift to historic pre-Euro-American colonization fire regimes was previously unquantified. This research provides that historic context and suggests that post-colonization fire suppression practices led to less frequent fires and greater fuel build-up. Now combined with climate change, the result is high severity wildfires. To improve forest resilience, the authors suggest a return to historic fire regimes by restoring Indigenous fire stewardship practices of prescribed burning, which would increase fire frequency, but lower fire severity—killing fewer trees and sustaining dry conifer ecosystems.

A map of Arizona and New Mexico showing contemporary fire footprints and the location of fire history sites used in this research.

Contemporary fire footprints from the Landsat record across Arizona and New Mexico shown in relation to the fire history sites used in this research. Image credit: McClure et al., 2024

Find more selected Landsat publications on our website.

“Landsat has been a catalyst for innovation in administering water rights. Now we can be much more precise in measuring and monitoring and then administering rights.”


Tony Willardson, Executive Director, Western States Water Council, October 29, 2024

Tony Willardson, Water Watcher 

NASA Earth Observatory

Selected Landsat Images

October 24, 2024

Today’s Glacial Retreat is a Recent Phenomenon


Alpine glaciers around the world were advancing as recently as 1990. Now they’re melting fast.

A Landsat 9 satellite image of Mount Baker in the North Cascades acquired on August 17, 2024.

October 21, 2024

Water for a Desert Lake in Algeria



Scientists are studying the rare filling of Sebkha el Melah for clues about past—and possibly future—greening of the Sahara Desert.

A natural-color Landsat 9 satellite image of Sebkha el Melah, an ephemeral lake in Algeria. Text in the image pinpoints Timmoudi, Sebkha el Melah, and Algeria. The image was acquired on September 29, 2024, after runoff from rainfall filled up the lake.

October 18, 2024

Pyramid Lake in Bloom


Blooms of cyanobacteria develop in the brackish waters of this Nevada lake nearly every year.

A natural-color Landsat 9 satellite image of Pyramid Lake, Nevada, revealing swirling patches of blue-green algae within the green waters. Text in the image pinpoints Pyramid Lake, Anaho Island, Nevada, and Truckee River.

October 3, 2024

Typhoon Krathon Nears Taiwan


Once the equivalent of a Category 4 hurricane, the typhoon weakened and stalled off the island’s southwest coast.

Satellite image of Typhoon Krathon's eye, showing turbulent cloud formations swirling around a center where the ocean is visible. The clouds, in varying shades of white and gray, highlight the atmospheric conditions within the storm. A 10 km scale marker is shown in the bottom left for reference.

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