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Landsat

A large wall of ice looms above a body of water, and a waterfall trickles down the ice near the center of the image.
Posted inNews

Alaskan Glaciers Advance and Retreat in Satellite Imagery

by Katherine Kornei 12 September 202212 September 2022

Researchers tracked 19 maritime glaciers in Kenai Fjords National Park over several decades and found that tidewater glaciers tended to experience less ice loss than other types of glaciers.

Satellite images of the Yangtze River in 1999 and 2010, showing a radical reduction in suspended sediment
Posted inNews

Satellites Show Magnitude of Human Influence on River Sediment Flux

by Mohammed El-Said 12 July 20228 September 2022

Dam-building has decreased the amount of sediment transported by rivers, while land use changes have increased the amount.

A boreal forest sits at the base of Alaska’s snowcapped mountains with a stream in the foreground.
Posted inNews

Satellites Reveal Slow Shift of the Entire Boreal Biome

by Saima May Sidik 5 April 20225 April 2022

According to a new study, warmer temperatures and high soil nitrogen levels are causing Earth’s largest land biome to advance northward.

Posted inNews

Una nueva herramienta crea rápida y gratuitamente mapas de inundaciones para el sur global

by J. Besl 8 December 202131 March 2022

Un nuevo programa en línea puede trazar rápidamente los contornos de inundaciones pasadas, permitiendo que los países con escasez de datos se preparen para futuros desastres.

Overhead shot of a flooded river in the center of Hue, Vietnam
Posted inNews

New Tool Crafts Fast, Free Flood Maps for the Global South

by J. Besl 2 November 202130 September 2022

A new online program can quickly map the outlines of past floods, allowing data-scarce countries to prepare for future disasters.

Kichwa forest monitors in a deforested site at Copal Urco in the Peruvian Amazon.
Posted inNews

Indigenous Peoples Harness Space Technology to Stop Deforestation

by Andrew J. Wight 26 August 202131 March 2022

Satellite observations have long been used to detect deforestation, and a new study shows that giving Indigenous groups greater access to these data can improve response times and reduce tree cover loss.

Satellite image of the Rio Negro floodplain forest, with a prominent white burn scar
Posted inNews

Amazon Forests Are Turning into Savannas

by Rishika Pardikar 14 May 202131 March 2022

Floodplain forests have low resilience to repeated exposure to wildfires. As climate change increases the instances of fires, forests may transform to less productive grassland ecosystems.

Two maps of the Missouri river basin showing estimates of river discharge in a hydrological model (top) and when the model incorporates satellite data (bottom).
Posted inEditors' Highlights

Gauging Ungauged River Basins with Smart Remote Sensing

by Marc F. P. Bierkens 10 March 202131 March 2022

A clever combination of hydrologic modelling and discharge estimates from the Landsat satellite provides good discharge estimates throughout the Missouri river basin.

A view of landslides in the mountains of Puerto Rico after the extreme rainfall from Hurricane Maria in 2017
Posted inFeatures

A Slippery Slope: Could Climate Change Lead to More Landslides?

by Jane Palmer 23 November 202031 March 2022

Scientists investigate whether warming temperatures and changing rainfall patterns could be triggering more landslides in mountainous areas.

Rodrigo de Freitas Lagoon
Posted inScience Updates

Earth Observations Inform Cities’ Operations and Planning

by M. M. Hurwitz, C. Braneon, D. B. Kirschbaum, F. Mandarino and R. Mansour 16 July 202031 March 2022

Rio de Janeiro, Brazil, and Chicago, Ill., are using NASA Earth observations to map, monitor, and forecast water and air quality, urban heat island effects, landslide risks, and more.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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