In western North America, mountain pine beetles infest and ravage thousands of acres of forest lands. Landsat satellites bear witness to the onslaught in a way that neither humans nor most other satellites can.
Landsat Science Team member, Mike Wulder, spoke with the International Boreal Forest Research Association last year during their May 2015 conference in Rovaniemi, Finland.
Analyzing a three-decade record of vegetation cover change from the Landsat to compare previous controls on Sierra Nevada forest growth rates and effects of recent fluctuations in water availability since the mid-1980s.
NASA and the U.S. Geological Survey’s Landsat satellite images over the past three decades showed that the severe drought periods recorded since the 1980s have not slowed rapid tree and shrub growth, especially on steep slopes burned recently by [...]
Forests are commodities. The biggest driver of deforestation worldwide is the economic value of trees and the land they stand on. With the high demand for agricultural land and wood products, deforestation has become an intractable problem.
Canada has recreated the recent history of its forest disturbance and related recovery using Landsat data; a history that would otherwise not be possible to recreate in a manner that is spatially explicit and at a spatial resolution of relevance [...]
A NASA-led team of scientists has developed the first-ever method for detecting the presence of different types of underground forest fungi from space, information that may help researchers predict how climate change will alter forest habitats.
We turned to the remote sensing archive to determine if drought altered forest structure over the course of a decade-and-a-half. We analyzed 22 years of Landsat satellite data to determine changes in forest condition between 1985 and 2012.
A marriage in the remote forests of China promises to unite two important forces to better inform the health and future of biodiversity. The union is reported in this week’s journal Ecological Indicators by Michigan State University researchers.
Erin Pfeil-McCullough, a graduate student at the University of Pittsburgh, gave a talk at #AGU15 on insights that she has gained from her research to determine what impacts longwall mining has on forest canopies above as the ground subsides and [...]
Courtney Reents, a graduate student at University of Illinois at Urbana-Champaign, presented a poster on forest disturbance in California at #AGU15.
Chengquan Huang presented a poster explaining where to find U.S. forests that have been undisturbed for last 25 years at #AGU15. His research relied on Landsat to both find these forests and understand forest disturbance trends in the U.S.
Heads of Government from major forest countries and partner countries joined together on Nov. 30, 2015 to endorse forests as a key climate solution. They recommitted to providing strong, collective and urgent action to promote equitable rural [...]
The Oak Ridge National Laboratory DAAC, has just release a Landsat-based forest disturbance history covering the years between 1986 and 2010.
The World Economic Forum has published a talk given by Illah Nourbakhsh, professor of robotics from Carnegie Mellon and Matthew Hansen, a remote sensing specialist at the University of Maryland, that demonstrates how visualizing big data can [...]
Semantics, carbon implications, and solutions
Using the world’s first global, Landsat-based 30-meter resolution map of tree cover, researchers found that ambiguity of the term “forest” has the potential to create 13 percent discrepancies in forest area maps. While ecologists have long [...]
The world lost more than 18 million hectares (45 million acres) of tree cover in 2014, an area twice the size of Portugal, according to new data from the University of Maryland (UMD) and Google released by Global Forest Watch. The data find that [...]
Forest resource managers, natural resource policy makers, and global change scientists need comprehensive, consistent, and up-to-date information on trends in forest cover and condition. This information is essential for understanding carbon [...]
In his lightning talk Lagomasino proposed a challenge to help study deforestation by linking satellite imagery and ground-images gathered via crowdsourcing
Scientists for the first time have simultaneously compared widespread impacts from two of the most common forest insects in the West—mountain pine beetle and western spruce budworm – an advance that could lead to more effective management policies.
The rate at which tropical forests were cut, burned or otherwise lost from the 1990s through the 2000s accelerated by 62 percent, according to a new study which dramatically reverses a previous estimate of a 25 percent slowdown over the same [...]
When viewed from space, clouds largely obscure the Earth. It isn’t a matter of time of day, angle or distance. It’s just the way it is – unless, of course, you are gazing at the planet using Google Earth. The story of how Google Earth offers [...]
SilviaTerra is a four-year-old start-up company with five full-time employees that is contributing to the change in the way forests are managed in the United States. The company provides next-generation, highly accurate forest inventory data to [...]
Each year the U.S. Forest Service takes a census of trees, chronicling the nation’s forest heath and timber resources. Forest managers use this information to project what U.S. forests will be like in coming decades and, if needed, to adjust [...]
Along the sea’s edge in Bangladesh, India, Pakistan, and Sri Lanka, the dense coastal population lives largely in symbiosis with the region’s mangrove forests. Mangroves—a vast network of intertidal trees and shrubs with their characteristic [...]
Ensuring the health and sustainability of the nation’s forests requires scientifically credible and timely information about the extent, location, health, and ownership of these forests and the possible effects of global climate change. Forest [...]
A group of researchers from the University of Maryland, the Indonesian Ministry of Forestry, and the World Resource Institute joined forces to remedy the lack of consensus about the amount of old-growth forest clearing occurring in Indonesia.
On March 4, 2014, the CLASlite team at the Carnegie Institution for Science (Department of Global Ecology) launched the Spanish version of the Carnegie Landsat Analysis System-lite (or CLASlite) Classroom, hosted by Stanford University Online [...]
Cold-sensitive mangrove forests have expanded dramatically along Florida's Atlantic Coast since the mid-1980s, as the frequency of killing frosts has declined, according to a new study based on 28 years of satellite data from the NASA-USGS [...]
Forest conservation is an issue of major concern to communities large and small around the globe. But gathering the monitoring data needed to make the right decisions has proven extremely prohibitive for individuals to entire governments.
The ravages of deforestation, wildfires, windstorms and insects on global forests during this century are revealed in unprecedented detail in a new study based on Landsat data.
In June, air pollution over Singapore and Malaysia spiked as forests in neighboring Sumatra (Indonesia) burned. Using NASA's daily fire alerts and official national maps, the fires were located in the vicinity of oil palm and acacia tree [...]
Images from Landsat satellites provided free to the public by the Department of the Interior's U.S. Geological Survey were the starting points for “a new breakthrough” reported today by Time and announced on the Official Google Blog. Using its [...]
The southeastern United States is a hotspot for forestry activity. The cyclical harvest and planting of trees on lands dedicated to timber and pulp production result in some of the highest rates of forest change observed in the country. Over the [...]
A new way of studying and visualizing Earth science data from a NASA and U.S. Geological Survey satellite program is resulting in, for the first time, the ability to tease out the small events that can cause big changes in an ecosystem. Called [...]
A new method of mapping satellite data reveals the hidden stories of forests in the Pacific Northwest. Forests in the United States are constantly changing. For four decades NASA and the U.S. Geological Survey's Landsat satellites have kept a [...]
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. Within a year, burn scars cast a sharp outline on the 793,880 acres affected by fire, [...]
• NASA's Earth-observing fleet of satellites provides a worldwide and unbiased view with standardized scientific data—information crucial for tracking the health of the world's forests. Countries like Brazil are using data from NASA [...]
Part of the challenge for understanding how forests are affected by climate change is the need for long-term data. Satellites are a cost-effective way to gather wide-spread information on forests, and the Landsat program has been doing so across [...]
Satellite researcher Alan Belward works for the Institute for Environment and Sustainability, part of the European Commission's Joint Research Center in Ispra, Italy. Dr. Belward heads the Land Resource Management Unit, which looks at changes to [...]
Kirtland's warblers are an endangered species of lightweight little birds with bright yellow-bellies that summer in North America and winter in the Bahamas. But be it their winter or their summer home, a new study using data from NASA-built [...]
Trembling aspen are dying. No tree species in North America has a broader habitat and no other is as large (a single clone can be a hundred acres in size). So their recent widespread mortality, caused by a severe five-year drought and higher [...]
Contributor: Vicky Fakan, USAID USAID has long been a major actor helping to conserve Guinea's forest reserves, which replenish many of West Africa's life-sustaining waterways. Now, a recent partnership between USAID and the U.S. Geological [...]
Contributor: Melissa Quijada, NASA Goddard Space Flight Center NASA satellite images regularly map active fires around the world. Once a fire is out, satellite data and maps are also used by scientists to measure and protect the scorched land, [...]
Source: Jan Nelson, USGS / Rob Gutro, NASA Goddard Space Flight Center The second largest fire in Arizona history, the Wallow Fire is graphically depicted by this Landsat image, taken June 7, which shows burning in the mountains of eastern [...]
Contributors: Janet L. Anderson, NASA Marshall Space Flight Center In the last few years, fire incidence in Guatemala has increased, damaging and transforming wild areas into degraded forests, savannas and sterile lands. Atrocious events have [...]
Source: Elizabeth Braun, Woods Hole Research Center The Woods Hole Research Center has released the first hectare-scale maps of canopy height, aboveground biomass, and associated carbon stock for the forests and woodlands of the conterminous [...]
In an article released late this month in Environmental Research Letters, authors Mark Broich, Matthew Hansen, Fred Stolle, Peter Potapov, Belinda Arunarwati Margono, and Bernard Adusei examined interannual forest cover loss on the Indonesian [...]