February 2018


Antarctic ice flow map
Feb 20, 2018New Study Brings Antarctic Ice Loss Into Sharper Focus

A NASA study based on an innovative technique for crunching torrents of satellite data provides the clearest picture yet of changes in Antarctic ice flow into the ocean.

peatland in Sumatra
Dec 28, 2017Open Digital Mapping For Assessing Carbon Storage in Tropical Peatlands

Tropical peatland can be mapped accurately using freely-available remote sensing data and open source software.

ice on vitus lake, bering glacier
Dec 15, 2017Traveling Back in Time to Follow Glacier Trends with IceTrendr

Revealing the dynamic nature of glaciers.

Fox glacier
Dec 15, 2017Taking Inventory of New Zealand’s Glaciers

Glaciers have been receeding rapidly in many parts of the world, including New Zealand.

Andrew Elmore
Dec 14, 2017USGS Video: Landsat in Action—Changing Forest Phenology with Andrew Elmore

Elmore delves into the changing phenology of forests and how that impacts the amount of carbon dioxide going into the atmosphere.

tidal marshes
Dec 14, 2017Calculating Carbon: Tidal Marsh Contributions

Modeling the aboveground biomass and carbon of tidal marshes across the U.S.

birth of iceberg A-68
Dec 12, 2017How Scientists Watched the Larsen C Ice Shelf Give Birth to an Iceberg in the Polar Night

Using Landsat 8's thermal data to monitor calving events in Antarctica.

How Do Coastal Marshes Respond to Climate Change?
Dec 12, 2017How Do Coastal Marshes Respond to Climate Change?

Using Landsat data from 1984-2014 to investigate the blue carbon change in Louisiana's coastal marshes.

Harvested and burned forests of Canada from 1985-2010
Nov 6, 2017Tracking Forest Change in Canada

Researchers used a time series of data from Landsat satellites to quantify areas burned or harvested across Canada.

Landsat image of Antarctica
Oct 18, 2017USGS Video: Landsat In Action—Interview with Ted Scambos

Ted Scambos, Lead Scientist at the National Snow & Ice Data Center, talks about the roll of Landsat in his research studying polar regions.

rock outcropping on Fleming Glacier
Sep 25, 2017Wind, Warm Water Revved Up Melting Antarctic Glaciers

A NASA study has located the Antarctic glaciers that accelerated the fastest between 2008 and 2014 and finds that the most likely cause of their speedup is an observed influx of warm water into the bay where they're located.

Landsat image of Larsen C ice shelf.
Jul 27, 2017Looking at Larsen C Fracture Mechanics with Landsat

The large rift that eventually formed iceberg A68 initially broke through a suture zone in the southern part of the ice shelf that had previously stabilized neighboring rifts for at least 80 years.

thermal image of Larsen C
Jul 25, 2017Landsat ‘Sees in the Dark’ the Evolution of Antarctica’s Delaware-sized Iceberg

The Thermal Infrared Sensor (TIRS) on Landsat 8 captured a new snap of the 2,240-square-mile iceberg that split off from the Antarctic Peninsula’s Larsen C ice shelf on July 10-12.

Larsen C ice crack
Jul 13, 2017Massive Iceberg Breaks Off from Antarctica

The iceberg is about the size of Delaware.

Chesapeake Bay tributary
May 2, 2017Revolutionizing Land Cover and Land Change Research

A new initiative called Land Change Monitoring, Assessment, and Projection provides definitive, timely information on how, why, and where the planet is changing.

outlet glacier
Jan 9, 2017Using Landsat to Take the Long View on Greenland’s Glaciers

A new Landsat-based data portal enables scientists to study in unprecedented detail how fast outlet glaciers such as this one move and change over space and time.

Heimdal Glacier
Dec 23, 2016Landsat Provides Global View of Speed of Ice

Scientists are providing a near-real-time view of every large glacier and ice sheet on Earth with Landsat 8.

forest inventory
Dec 16, 2016How FastEmap is Helping Foresters

A new a tool to help with annual forest mapping.

Sierra Nevada Mountains
Dec 15, 2016Extreme Event: 2012-2015 Snowpack Drought in the Sierra Nevada Mountains

The water year 2015 peak snowpack was found to be the lowest over the 65-year reconstruction of peak annual snow water equivalent.

Folgefonna glacier
Dec 15, 2016A New Way to Map Glaciers

Using Landsat time-series analysis to map glaciers.

forest near Mt. Hood
Dec 15, 2016Fingerprinting Carbon Loss in Pacific Northwest Forests

Looking at the causes of carbon loss in Pacific Northwest forests.

Springtime on an Urban Heat Island
Dec 15, 2016Springtime on an Urban Heat Island

How the urban heat island of Boston affects the growing season of vegetation in and around the city.

snowmelt dates for Alaska
Dec 15, 2016Mapping Snowmelt in the Arctic

The extensive Landsat record has been analyzed to map the climatalogical normal date of snowmelt for large areas of the Arctic.

livestock, Pamir Mountains
Dec 15, 2016The 2015 Surge of Kelayayilake Glacier

In May 2015, a severe glacier surge struck the eastern Pamir.

Nevado Coropuna
Dec 14, 2016A Glacierized Volcano in Peru & El Niño

How the El Niño Southern Oscillation impacts snow cover of a glacierized volcano in Peru.

Punak Jaya glacier
Dec 14, 2016Decline of the Last Glaciers in the Eastern Tropics

The glaciers of Puncak Jaya have continued their decline.

abandoned barn
Dec 14, 201645 Years of Ecosystem Carbon Storage Change Across the U.S.

The carbon implications of 45 years of land use and land cover change in the conterminous U.S.

Getz Ice Shelf
Dec 12, 2016The Shifting Boundary Between Grounded Continental Ice and the Ocean in West Antarctica

Using Landsat to closely monitor changes in ‘grounding line’ position in West Antarctica.

Taimyr reindeer
Dec 12, 2016What Satellites Can Tell Us About How Animals Will Fare in a Changing Climate

From the Arctic to the Mojave Desert, terrestrial and marine habitats are quickly changing. Satellites are particularly well-suited to observe habitat transformation and help scientists forecast what animals might do next.

Karakoram mountain range
Dec 12, 2016Glacier Behavior in High Mountain Asia

How do glaciers respond to present climate change, in particular how have ice flows evolved over the last few decades?

Nabesna Glacier
Dec 12, 2016The Mechanics of Glacier Motion

Using Landsat 8 to document glacier velocity patterns on a mountain-range-wide scale.

Louisiana coastal marshes
Dec 12, 2016How Louisiana’s Coastal Marshes are Responding to Climate Change

Louisiana's coastal marshes are responding to climate change.

Himalayas
Dec 12, 2016Dust on a Glacier

The authors use Landsat imagery collected between 1996–2016 to analyze trends and variability in snow/ice albedo over the Himalayas.

Hamlet of Paulatuk
Dec 12, 2016The Eroding Hamlet of Paulatuk

The potential impacts of climate change on the Hamlet of Paulatuk in the Canadian Arctic are erosive.

NW Florida mangroves
Dec 12, 2016The Poleward March of Mangroves

Mangrove expansion has been observed in some subtropical locations around the world.

Antarctica
Dec 12, 2016Reassessing Mass Balance in West Antarctica

Mr. Chuter presented a poster on new mass balance estimates and velocity changes for parts of West Antarctica.

climate change data as art
Sep 30, 2016Landsat, Art, and a Glacier’s Perspective

Glaciologist and prolific AGU blogger, Mauri Pelto, regularly publishes posts about changing glaciers around the globe on his "From a Glacier's Perspective" blog. In many cases, Landsat data informs his posts.

Spartina grass on Sapelo Island
Aug 15, 2016Landsat Reveals Serious Decline in Georgia Salt Marsh Health

Scientists at the University of Georgia’s Marine Institute at Sapelo Island have found that the amount of vegetation along the Georgia coast has declined significantly in the last 30 years, spurring concerns about the overall health of marshland [...]

trees killed by pine beetles
Jul 19, 2016Landsat—The Watchman that Never Sleeps

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.

Sierra Nevada Snowpack Not Likely To Recover from Drought Until 2019
Jun 21, 2016Sierra Nevada Snowpack Not Likely To Recover from Drought Until 2019

Even with this winter’s strong El Niño, the Sierra Nevada snowpack will likely take until 2019 to return to pre-drought levels, according to new research.

west Antarctica
Jun 1, 2016Antarctic Coastline Images Reveal Four Decades of Ice Loss to Ocean

A study of images along 2000 kilometers of West Antarctica’s coastline has shown the loss of about 1000 square kilometers of ice – an area equivalent to the city of Berlin – over the past 40 years.

Landscape of West Kalimantan, Indonesia by Yayan Indriatmoko , CIFOR
Apr 27, 2016Staying Alert: How a New Landsat-Based Tool Spots Deforestation

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.

Canadian forest changes 1985-2011
Apr 18, 2016Landsat Used to Recreate the History of Canada’s Forests

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 [...]

forest and fungi
Mar 31, 2016Landsat Uncovers Underground Forest Fungi

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.

wetlands in winter
Mar 16, 2016New Technique Tracks ‘Heartbeat’ of Hundreds of Wetlands

Across the U.S. and particularly in Washington state, very little is known about the acreage, yearly flooding cycles and even the actual locations of wetlands. Even hazier is what could happen to these vital ecosystems under climate change.

2015 Antarctica velocity map
Dec 18, 2015Measuring Movement at the Bottom of the Earth

Alex Gardner, a Research Scientist at NASA's Jet Propulsion Laboratory, has used 30 years of Landsat data—some 3 million scenes—to measure the velocity of Antarctica's ice sheet. He spoke with us about the work he is presenting at #AGU15.

Lake Clark
Dec 18, 2015Watching Glacial Sediment Plumes in Alaska’s Lake Clark

Carson Baughman, a geographer at the USGS Alaska Science Center, presented results of his study on seasonal glacial sediment plumes in Alaska's Lake Clark at #AGU15. We talked to Carson about his work.

Antarctic rock outcrop map
Dec 17, 2015Mapping Antarctic Rock Outcrops with Landsat 8

Alex Burton-Johnson, Martin Black, and Peter Fretwell from the British Antarctic Survey have used Landsat 8 data to create a new rock outcrop map for Antarctica, which will become part of the Antarctic Digital Database. The team presented their [...]

Denali, snow
Dec 17, 2015A New Landsat-based Snow Cover Product from USGS

David Selkowitz, a Research Geographer with the USGS Alaska Science Center, and his team have developed a snow cover product, that allows users to look at historical snow cover through time. Selkowitz presented a poster on the Landsat-based data [...]

Coropuna
Dec 15, 2015Survival of a Tropical Glacier

William Kochtitzky, a student from Dickinson College, presented a poster on glacial changes on Peru’s Nevado Coropuna volcano at #AGU15.