A NASA study of a basin in northwestern Wyoming revealed that the snowmelt season in the area is now ending on average about sixteen days earlier than it did from the 1970s through the 1990s.
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 [...]
On February 11, 2013, the Landsat 8 satellite rocketed into space to extend a four-decade legacy of Earth observations. A few months after launch, we published a composite of images that spanned 9,000 kilometers of land from Russia to South [...]
Ecosystems provide vast services and benefits to humankind: food and water that is needed for survival; nutrients and other natural products that fuel farms and industries; natural controls on many pests and pathogens; storage of carbon safely [...]
Since 2008, all Landsat data—archived and newly acquired—have been available for free download. On September 16, 2014, users worldwide downloaded over 14,000 scenes from the servers at the USGS Earth Resources Observation and Science (EROS) [...]
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 [...]
Land change is a signature activity of human civilization. Since the dawn of history, people have purposefully converted natural landscapes to human-dominated areas. Typical motivations for land change are cultivation (e.g. slash-and-burn [...]
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.
A compendium of civilian satellites with the potential to image global land surfaces has been compiled by Alan Belward and Jon Skøien from the Land Resource Management Unit of the European Commission’s Institute for Environment and [...]
A recently published report gives a comprehensive look at the glaciers of Nepal over the last three decades, at ten year increments (1980, 1990, 2000, and 2010). The information was derived from Landsat and Shuttle Radar Topography Mission [...]
An international team led by glaciologists from the University of Colorado Boulder and Trent University in Ontario, Canada has completed the first mapping of virtually all of the world’s glaciers—including their locations and sizes—allowing for [...]
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 [...]
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.
NASA and Amazon Web Services Inc. (AWS) of Seattle, Wash., are making a large collection of NASA climate and Earth science satellite data available to research and educational users through the AWS cloud.
Allen Pope, a research assistant at the National Snow & Ice Data Center, recently created this video showing some of the ways Landsat 8 data are used to study the cryosphere.
For the first time, all of Iceland’s glaciers are shown on a single map, produced by the Icelandic Meteorological Office (IMO), in collaboration with the U. S. Geological Survey (USGS) and Iceland Geosurvey. The map is the first to incorporate [...]
Speeding around the Earth at 16,800 mph (27,000 kph), two Landsat satellites are quietly, expertly watching and recording changes in Earth’s lands from space. They are gathering data for people to make maps–all kinds of wonderful maps–of our [...]
The Wallow Fire burned over 500,000 acres, making it the largest fire in Arizona history, to date. It is one of many large fires that fire managers and researchers have seen scorch forests nationwide since the early 2000s.
At a small college in Dudley, Mass., a professor of Environmental Science is doing big things. Glaciologist Mauri Pelto is using Landsat imagery to monitor glaciers around the world from his office at Nichols College.
While the 138,000-acre Silver Fire still smoldered, forest restoration specialists were on the job. They analyzed maps created using Landsat satellite data to determine where the burn destroyed vegetation and exposed soil—and where to focus [...]
The Black Forest wildfire this June was one of the most destructive in Colorado history, in terms of homes lost. It started close to houses and quickly spread through the ponderosa pine canopies on the rolling hills near Colorado Springs. The [...]
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 [...]
The Juneau Icefield Research Program (JIRP) has been examining the glaciers of the Juneau Icefield since 1946. Until the NASA Landsat program began, field measurements and aerial observations were the only means to observe the glaciers of the [...]
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 [...]
In the July issue of Nature Climate Change, Tandong Yao and colleagues report on the changing status of Tibetan Plateau glaciers over the past three decades. Using an array of data sources including Landsat (MSS, TM, and ETM+), the researchers [...]
A new study examining nearly 40 years of satellite imagery has revealed that the floating ice shelves of a critical portion of West Antarctica are steadily losing their grip on adjacent bay walls, potentially amplifying an already accelerating [...]
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 [...]
Every month, the National Oceanic and Atmospheric Administration's (NOAA) Center for Climate Prediction has a drought briefing by teleconference to identify the latest drought areas in North America. ARS scientists Martha Anderson and Bill [...]
Using long-term Landsat time series data researchers at NASA Goddard Space Flight Center have found that warming temperatures alter the geographic distribution and health of arctic plants. Using Landsat 5 data of Northern Quebec from 1986–2010, [...]
Scientists have used satellite data from NASA-built Landsat missions to confirm that more than 20 years of warming temperatures in northern Quebec, Canada, have resulted in an increase in the amount and extent of shrubs and grasses. "For the [...]
Permafrost—ground that remains frozen for at least two years—allows soil substrate to act like bedrock. So when permafrost thaws there can be major problems for structures built atop of it. Imagine if the granite of Mount Rushmore turned to [...]
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 [...]
A new Landsat-based survey of worldwide barrier islands has discovered over 650 previously unrecognized islands. Length-wis,e the global stretch of barrier islands is now 37 percent greater than formerly thought. Barrier islands are long narrow [...]
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 [...]
Scientists have created a mosaic of digital images collected from space showing the frozen continent of Antarctica—one of the most remote and least known places on Earth—in amazing detail for the first time ever. The mosaic is called LIMA, Read [...]
As the world moves toward adding a few more billion people in the coming decades, many people who keep an eye on the horizon find themselves worried about water. Drinking water, water for irrigation, water for industry. Getting clean water is [...]
With the capability to provide valuable information about individual farm fields, vineyards, and orchards, NASA satellites soon will provide California growers in the San Joaquin Valley with important information about crop growth, irrigation [...]
At the UN climate talks in Cancun, a satellite-based protocol to track deforestation is being met with some optimism. In this new initiative to incentivize forest conservation in developing countries, Landsat data would be used to verify [...]
Every year, hurricanes and droughts wreak havoc on human lives and property around the world. And according to a pair of new NASA-funded studies, migratory birds also experience severe impacts to their habitats and populations from these events. [...]
Source: Group on Earth Observations “The only way to measure forests efficiently is from space,” Group on Earth Observations (GEO) director, José Achache said referring to the group's goal to make annual assessments of forest carbon stocks using [...]
Contributor: Laura E.P. Rocchio Last night, Harvard University’s prestigious Ash Institute selected a Landsat-based water-use mapping method as a 2009 Innovations in American Government Award winner. “The 2009 Innovations finalists epitomize [...]
In a new study published in the Marine Ecology Progress Series, scientists have used Landsat 7 data to assess coral reef productivity and calcification in Florida's northern reef tract (northeast of the Florida Keys). Landsat data were used to [...]
Source: Amber Jenkins, Jet Propulsion Laboratory Water is constantly being moved about our planet. The water, or hydrologic, cycle describes how water changes from liquid to solid to vapor and how it is stored in a variety of places: under the [...]
Source: Gretchen Cook-Anderson In the last decade, Asian farmers have cleared tens of thousands of square miles of forests to accommodate the world’s growing demand for palm oil, an increasingly popular food ingredient. Ancient peatlands have [...]