Land Change Science Program


Filter Total Items: 29
Satellite image showing FPI.
October 10, 2018

FPI Forecast

Fire Potential Index map for October 10, 2018.

Satellite data image for expected fires.
August 30, 2018

USGS Fire Danger Forecast Large Fire Probability

Large Fire Probability for August 30, 2018.  Percent change estimate, given a source for ignition that a fire will grow to 100+ acres.

Image showing expected number of large fires.
August 30, 2018

Fire Danger Expected Number of Fires per PSA

This map takes into account both probability of ignition and conditional probability of spread (to 500+ acres in East and 1000+ acres in West*) given ignition.

Image showing fire potential.
August 30, 2018

Fire Potential Index (FPI) forecast

The FPI is most similar to the Energy Release Component of the National Fire Danger Rating System in that both are moisture related indexes and neither indicates the effect of wind on fire potential. 

Image showing probability of large fire.
August 30, 2018

Large Fire Probability

This map takes into account both probability of ignition and conditional probability of spread (to 500+ acres in East and 1000+ acres in West*) given ignition.

Graph image for fires in upcoming week.
August 29, 2018

Historic Distribution of 100+ acres Fires per Forthcoming Week

Summary of Fires by GACC Units: For the week of 08/29/2018

October 10, 2017

Global Mountain Explorer Video Tutorial

This video contains a narrated introduction to the Global Mountain Explorer, or GME. The GME is a web-based tool for visualizing and exploring three well known global mountain datalayers. The video tutorial provides background information on the three global mountain characterizations, and provides users with a walk through of all the functionality of the map exploration

Researcher samples sediments on exposed cliff face.
July 27, 2016

Socastee Formation Sampling to Study Past Records of Sea Level

In July of 2016, a team from the Climate and Land Use Research and Development Program took a trip to South Carolina to study outcrops of the “Canepatch” and “Socastee” formations along the Intra-Coastal Waterway, near Myrtle Beach. The age of these fossiliferous marine units has been controversial for several decades. To re-assess the ages of these formations, fossil

Scientist laying cable in a field
June 1, 2016

Laying Ground Cable to Measure Permafrost

USGS scientist Burke Minsley and project partners from the U. Alaska Fairbanks lay ground cable to measure permafrost depth at Nome Creek site north of Fairbanks, Alaska.

A forested mountainside with patches of dead trees
October 31, 2015

Dead trees during drought in Sequoia National Park

Dead trees viewed from the Colony Mill Trail in Sequoia National Park, photographed in 2015 during severe drought in California.

USGS Western Ecological Science Center's Dr. Nate Stephenson is studying how drought affects tree mortality in California.

Eddy covariance tower in tidal FW marsh adjacent to a forested wetland
February 27, 2012

Eddy covariance tower

USGS scientists and cooperators service an eddy covariance (EC) station located in a tidal freshwater marsh at Salvador Wildlife Management Area, Louisiana, USA. EC stations allow agency scientists to asses the net exchange of CO2 and CH4 from wetlands over large spatial scales, and help determine the carbon sequestration capacity of managed marshes while also considering

Remnants of a spruce forest
December 31, 1969

Remnants of a spruce forest

Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site. Wildland fires typically result in the reduction of