NASA Scientists Map Global Salt Marsh Losses and Their Carbon Impact
December 7, 2022
The world has lost 561 square miles (1,453 square kilometers) of salt marshes over the past 20 years.
The world has lost 561 square miles (1,453 square kilometers) of salt marshes over the past 20 years.
Scientists from NASA’s Goddard Space Flight Center and the University of Maryland, College Park, investigated how the acoustics of a forest can be a cost-effective indicator of its health—and Landsat allowed them to see back in time.
The Landsat-informed kelpwatch.org hosts the world’s largest open-source dynamic map of kelp forest canopy.
Fine-tuning remote sensing to protect forests from the spread of dangerous critters.
A new analysis of protected forests worldwide finds that protected forests are unlikely to be cut down when they are surrounded by intact forests.
California’s blue oak woodlands have decreased by more than 1,200 square kilometers.
Scientists use Landsat to track changing patterns of deforestation that tells them how Amazonian agricultural practices have changed, from small family holdings to massive ranching operations.
More than two decades worth of Landsat satellite imagery was used to quantify how beetle outbreaks have impacted high-elevations forests in Colorado, southern Wyoming, and northern New Mexico.
A new method, fusing data from many sources, has been developed for quantifying forests’ role as both carbon sink and carbon source.
Landsat-based Global Forest Watch alerts seem to be helping slow down forest loss in Africa.
Landsat shows some of the ways in which COVID-19 is changing the environment.
A new study reports a net increase of 5.38 petagrams of forest biomass between 1984 and 2016; carbon-wise, that is equivalent to a train of loaded coal cars long enough to wrap itself around Earth nearly 34 times.
Landsat and ICESat-2 satellite data have made it possible for scientists to develop maps showing the “quality” of tropical forests.
LANDFIRE has released its Remap dataset; new techniques and new data provide significant improvement.
A team of Boise State researchers is helping forecast tropical forest recovery from deforestation using Landsat satellite data.
Landsat data (since 1972) is helping scientists Sean Healey and Zhiqiang Yang of the Rocky Mountain Research Station (U.S. Forest Service) study the long-term impact of the May 18, 1980, eruption of Mount St. Helens.
Considered one of the world’s richest and most endangered forests, the Atlantic rainforest occupies 15% of Brazil’s landmass in an area that is home to 72% of the population.
Fires in forested watersheds that support drinking water supplies can introduce contaminants that overwhelm current treatment capabilities. Earth observation data are helping.
If greenhouse gas emissions continue increasing as they have been, 90% of Western Hemisphere cloud forests would be affected as early as 2060.
Learn more about this rather unusual seasonal and semi-arid cloud forest.
Following changes in long-term forest health around oil and gas wells in the Pennsylvania State Forest.
Access to image data collected by the Landsat series of satellites has improved Canada’s ability to observe, track and study forest disturbances.
The first study that connects field-measured data with satellite-derived burn severity in this corner of the world.
A new Burned Area algorithm has been developed by USGS to identify burned areas in images across the Landsat archive.
Researchers have succeeded in producing distribution maps for a selection of important tropical tree species in Peruvian lowland Amazonia.
This project used Landsat 5 and Landsat 8 data to create land use maps to analyze change in riparian case study areas.
A combination of lightning, drought and human activity caused fires to scorch more than one-third of Yellowstone National Park in the summer of 1988.
The 2014 megafires in Canada’s Northwest Territories burned 7 million acres of forest, making it one of the most severe fire events in Canadian history.
SDSU post-doc Pedro Oliveira is integrating remote sensing data from airborne LiDAR and Landsat 8 and Sentinel-2 satellites to map the height of the Brazilian Amazon forest canopy.
A new, highly accurate, automated way to detect clouds and their shadows from satellite images over unusually cloudy places.
Annual maps of the lower-48 United States produced from Landsat satellite data illustrate how these dynamic systems changed from 1986-2010.
Last spring, NASA researchers flew over the Everglades and Puerto Rico to measure how mangroves and rainforests grow and evolve over time, then hurricanes Irma and Maria struck.
Scientists at Berkeley Lab have produced a rapid mapping of the disturbance intensity across Puerto Rico’s forests with the help of Google Earth Engine and Landsat 8.
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