Images related to Quantifying Tree Loss in Sierra National Forest

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

Tree Cover
Image

Tree Cover

Published Oct 14, 2003

Image of the Day Land Life

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

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

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

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

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

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

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

Spotting the Spotted Owl: 30 Years of Forest Disturbance
Image

Spotting the Spotted Owl: 30 Years of Forest Disturbance

Wildfires make a significant mark on the bird’s nesting and roosting habitat.

Published Dec 23, 2019

Image of the Day Land Life Human Presence Remote Sensing

A Closer Look at Alaska’s Forests
Image

A Closer Look at Alaska’s Forests

A small plane flying low over remote forests is sending back eye-popping aerial photography—as well as scientific measurements that will improve understanding of how Alaska’s forests are responding to global warming.

Published Jul 25, 2014

Image of the Day Land

Tiny Beetles Take a Large Bite Out of the Forest
Image

Tiny Beetles Take a Large Bite Out of the Forest

Pine bark beetles have been ravaging forests in the Rocky Mountains.

Published Jul 28, 2012

Image of the Day Land

Cutting into Africa’s Green Heart
Image

Cutting into Africa’s Green Heart

New analysis gives a clearer picture of changes to a forest landscape.

Published Mar 8, 2017

Image of the Day Life 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