Images related to A Closer Look at Alaska’s Forests

Is That a Forest? That Depends on How You Define It
Image

Is That a Forest? That Depends on How You Define It

Differences in how international and national institutions classify forests can lead to large discrepancies in measurements of land cover.

Published Nov 17, 2015

Image of the Day Land Life Remote Sensing

Admiralty Island: “Fortress of the Bears”
Image

Admiralty Island: “Fortress of the Bears”

Brown bears abound on this Alaskan island, parts of which have seen both widespread clear-cutting and forest regrowth in recent decades.

Published Apr 24, 2020

Image of the Day Land

When a Definition Makes a Forest Disappear
Image

When a Definition Makes a Forest Disappear

By changing a percentage, institutions can take some forested lands off the map.

Published Dec 18, 2015

Image of the Day Land Life

Measuring the Earth’s Dry Forests
Image

Measuring the Earth’s Dry Forests

Forests in drylands are much more extensive than previously reported.

Published Aug 10, 2017

Image of the Day Land Remote Sensing

Shining a G-LiHT on an Alaskan Forest
Image

Shining a G-LiHT on an Alaskan Forest

A three-dimensional view of an Alaskan forest is just one way scientists are tracking vegetation changes in the Tanana Valley.

Published Jul 27, 2016

Image of the Day Land Remote Sensing

New Map Yields Better View of Forest Changes
Image

New Map Yields Better View of Forest Changes

Open-access data from the NASA-USGS Landsat mission and cloud computing make for a highly detailed view of gains and losses in global and regional tree cover since 2000.

Published Nov 16, 2013

Image of the Day Land

Logging in Northern Republic of Congo
Image

Logging in Northern Republic of Congo

In recent decades, industrial logging has intensified in the dense tropical forests of central Africa, but few data sets exist that can help ecologists and policymakers monitor the occurrence and impact of logging over wide areas in that part of the world.

Published Jul 5, 2007

Image of the Day Land

Tracking Forest Change in Canada
Image

Tracking Forest Change in Canada

Researchers analyzed 25 years of Landsat data to establish where forests had burned or been cut.

Published Jun 27, 2017

Image of the Day Life Remote Sensing

Mapping Forest Loss with Landsat
Image

Mapping Forest Loss with Landsat

The opening of the Landsat data archive and a partnership with Google has allowed researchers to track the fine details of forest change around the world.

Published May 7, 2015

Image of the Day Land Human Presence

A Polish Royal Forest
Image

A Polish Royal Forest

Since the mid-1200s, the state has controlled Niepołomice Forest, which contains some of the last pockets of old-growth forest in Poland.

Published Nov 29, 2013

Image of the Day Land

A New Patch of Green in Brazil
Image

A New Patch of Green in Brazil

A twenty-year effort to plant millions of trees in Minas Gerais is visible to Landsat.

Published Jul 23, 2019

Image of the Day Land

Forest Canopy Heights Across the United States
Image

Forest Canopy Heights Across the United States

From the Pacific Northwest—home of the towering redwoods&mdash to the Southern Appalachians, this map shows forest canopy heights across the United States.

Published Jul 22, 2010

Image of the Day Land Life Remote Sensing

Closeup on Forests of the Pacific Northwest
Image

Closeup on Forests of the Pacific Northwest

A new map of the biomass in the United States allows scientists and land managers to see tree cover down to the scale of individual plots of land.

Published Feb 17, 2012

Image of the Day Land Life

Forest Changes in British Columbia
Image

Forest Changes in British Columbia

In British Columbia’s Coast Mountains, some 200 kilometers (125 miles) inland from the Pacific Ocean, rivers and lakes cut tortuous paths through rugged terrain. The peaks and valleys in this region are covered with forest, but the forest has changed over the years due to human use and insect pests, in particular, the mountain pine beetle.

Published Oct 12, 2008

Image of the Day Land

Where the Trees Are
Image

Where the Trees Are

The National Biomass and Carbon Dataset reveals the location and the carbon storage of forests in the United States.

Published Jan 11, 2012

Image of the Day Land Life

Changing Forest Cover Since the Soviet Era
Image

Changing Forest Cover Since the Soviet Era

Political change in Eastern Europe and Russia has left its mark on forests in the region.

Published Jul 16, 2015

Image of the Day Land Life

Cambodia’s Forests Are Disappearing
Image

Cambodia’s Forests Are Disappearing

Forests are being turned into rubber plantations, farmland, and timber at a rapid rate.

Published Jan 10, 2017

Image of the Day Land Human Presence Remote Sensing

Caterpillars Take Bite Out of Rhode Island Forests
Image

Caterpillars Take Bite Out of Rhode Island Forests

Dry weather in the Northeast has triggered an explosion in the populations of gypsy moth caterpillars, which are voracious eaters of forest canopies.

Published Jul 15, 2016

Image of the Day Land Remote Sensing

A New Measuring Stick for Forests
Image

A New Measuring Stick for Forests

The amount of carbon that is being stored by trees and how it has changed over time is the least understood aspect of the global carbon cycle.

Published Jan 27, 2020

Image of the Day Remote Sensing

The Green of Central Maine
Image

The Green of Central Maine

A patchwork of evergreen and deciduous forest has been a boon to research, outdoor recreation, and logging.

Published Feb 10, 2013

Image of the Day Land Water Human Presence

Finding Cortez
Image

Finding Cortez

Researchers have turned to citizen scientists to help detect previously unknown or recently disrupted kelp forests in satellite imagery.

Published Jan 13, 2015

Image of the Day Life Water Human Presence Remote Sensing

Guitar Forest
Image

Guitar Forest

A labor of love in the Argentine Pampas becomes a work of art for the planet.

Published Apr 27, 2014

Image of the Day Land Human Presence