Landsat Science Archive


Landsat Images Provided to the International Charter in March 2015
Mar 31, 2015Landsat Images Provided to the International Charter in March 2015

Mar 31, 2015 • The International Charter is a system that supplies free satellite imagery to emergency responders anywhere in the world. The Charter concept is this: a single phone number is made available to authorized parties providing [...]

Landsat mosaic of Australia
Mar 31, 2015Holding the Key—Australia Unlocks Its Landsat Archive

Mar 31, 2015 • In Australia, the Unlocking the Landsat Archive (ULA) project has created a “living and accessible” archive of Landsat 5 and 7 data, for years 1998–2012. The project goal was to remove access barriers to [...]

Server farm at Google
Mar 26, 2015Big Data Helps Scientists Dig Deeper

In 2008, the U.S. Geological Survey took 3.6 million images acquired by Landsat satellites and made them free and openly available on the Internet.

Earth data
Mar 26, 2015More Ways to Get Landsat Data

Last Thursday, Amazon Web Services (AWS) announced that it is now hosting Landsat 8 imagery on its publicly accessible Simple Storage Service (S3).

vicarious calibration
Mar 25, 2015Landsat and the Private Tech Sector: Direct and Complementary Uses of Imagery

Landsat is a key data input for many products developed and used in water resources, agricultural monitoring, land use and land cover monitoring, forest management, and development planning.

Fremont Lake Basin
Mar 23, 2015Historical Satellite Images Reveal Snow is Melting Earlier in Wyoming

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.

iGETT participants
Mar 16, 2015Landsat Helps to Build a Geospatial Workforce

The federal government has invested billions of dollars to ensure our country's leadership in space-based observations of our planet. We need a workforce that is fully prepared to understand and use this data for solving problems of local, [...]

TIRS
Mar 16, 2015L8 TIRS Data Processing Resumed

On March 13, 2015 at 4:00 pm CT, processing of Landsat 8 Thermal Infrared Sensor (TIRS) data resumed. The newly processed data includes the revised Calibration Parameter Files established after the mechanism control electronics (MCE) swap on [...]

TIRS
Mar 6, 2015TIRS Resumes Nominal Operations

The Landsat 8 Thermal Infrared Sensor (TIRS) resumed normal imaging operations.

The LDCM Thermal Infrared Sensor
Feb 26, 2015Landsat 8 Thermal Sensor Update

After extensive investigation and testing, the decision has been made to switch the TIRS Mechanism Control Electronics from the primary to redundant side on Monday, March 2, 2015.

DNC deforestation
Feb 25, 2015Landsat Shows Felling of Tropical Trees Has Soared

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 [...]

energy reaching TIRS
Feb 19, 2015Landsat 8 Remote Sensing Special Issue

A trio of Landsat calibration scientists—Brian Markham (NASA Goddard Space Flight Center), Jim Storey (Stinger Ghaffarian Technologies for USGS EROS) and Ron Morfitt (USGS Earth Resources Observation and Science Center) Landsat 8 Special Issue [...]

Previous NLCD (2001) Alaska land cover product
Feb 18, 2015A Decade of Change in America’s Arctic: New Land Cover Data Released for Alaska

The latest edition of the National Land Cover Dataset (NLCD 2011) for Alaska is now publicly available. The extensive NLCD database continues to add to our understanding of where land cover change has occurred across the Nation over time. [...]

Elephant Foot Glacier
Feb 18, 2015Landsat Goes Over The Top: A Long View of the Arctic

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 [...]

Lake Urmia
Feb 17, 2015Vanishing Lake Urmia

Iran’s Lake Urmia is one of the largest saltwater lakes in the world. With eight times as much salt as seawater, it’s the globe’s largest habitat for brine shrimp, which attract flamingos, egrets and other birds as they migrate across Asia. But [...]

Landsat 8 Beauty Shot
Feb 11, 2015Landsat 8 at 2 years

Two years ago today, Landsat 8 blasted off from Vandenberg Air Force Base!

Now & Then: The History of Portrait U.S.A.
Jan 29, 2015Now & Then: The History of Portrait U.S.A.

USGS released provisional Landsat surface reflectance products in December. Surface reflectance products correct for atmospheric distortions thereby providing “less hazy” images.

Moore and Surui chief
Jan 28, 2015Wrangling a Petabyte of Data to Better View the Earth

When viewed from space, clouds largely obscure the Earth. It isn’t a matter of time of day, angle or distance. It’s just the way it is – unless, of course, you are gazing at the planet using Google Earth. The story of how Google Earth offers [...]

USGS Landsat 8 TIRS Update
Jan 27, 2015USGS Landsat 8 TIRS Update

On December 19 the TIRS instrument on Landsat 8 was reconfigured due to detection of anomalous current levels associated with the scene select mirror encoder electronics. Since that time substantial testing has been conducted to isolate the root [...]

Turkana women gathering water
Jan 26, 2015Water Mapping Technology Rebuilds Lives in Arid Regions

Turkana County in northwest Kenya has been reeling from several years of crippling drought. As a consequence, the nomadic peoples in the region have suffered. Livestock such as goats and cattle, the sole source of income for these pastoralists, [...]



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