National Land Imaging Program

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Spatial Resolution Digital Imagery Guideline
June 18, 2020

Spatial Resolution Digital Imagery Guideline

This Spatial Resolution Digital Imagery Guideline was developed by Innovative and Imaging Research (I2R) for the USGS. This guide demonstrates how certain image specification parameters affect

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June 16, 2020

Watering the Sahara

In a remote part of the Sahara Desert in Egypt, center pivot irrigation fields fill the landscape. Thanks to the Landsat archive, we can see how dramatically this area has changed over the last 35 years. But until the growth in irrigation, this part of the world hadn't changed much from a satellite's perspective. That's why Landsat calibration engineers originally chose it

Marvin Bauer with Eyes on Earth podcast graphic
June 16, 2020

Eyes on Earth Episode 28 - Peer Reviews

Remote sensing is not an especially venerable scientific discipline, at least in comparison to fields like biology, chemistry or medicine. From its beginnings with aerial photography in the 1920s through the initial stages of satellite-based land imaging in the early 1970s, few peer-reviewed publications were available for scientists to share their ideas and improve their

Color image of Australian wildfire with the graphic for the podcast "Eyes on Earth"
April 14, 2020

Eyes on Earth Episode 27 - Australian Wildfires

The continent of Australia experienced some of the most devastating wildfires in its history in late 2019 and early 2020. Remote sensing scientists in Australia, who collaborate closely with EROS, relied on satellites like Landsat to help assess and monitor the damage. In this episode of Eyes on Earth, we hear from one of our Australian partners on the value of satellite

March 10, 2020

Image of the Week - Summer Pools Appear in Antarctica

 

Landsat recently captured the most widespread meltwater pooling ever recorded on Antarctica's George VI Ice Shelf. Some melting is expected during the Antarctic summer, but the sheer extent of the stunning aqua ponds that have appeared amid the continent's warmest summer on record is remarkable.

Ponds appeared two years earlier in some of the same locations

Satellite image showing flowers blooming.
March 7, 2020

An Early Spring via Satellite

The study of the Earth's natural life cycles is known as phenology. Scientists track the emergence of shoots and leaves, blooming flowers and pollinators as phenological signals every spring.

Satellite image showing ice and pools of water on an ice shelf.
January 19, 2020

Summer Pools Appear in Antarctica

Landsat recently captured the most widespread meltwater pooling ever recorded on Antarctica's George VI Ice Shelf. Some melting is expected during the Antarctic summer, but the sheer extent of the stunning aqua ponds that have appeared amid the continent's warmest summer on record is remarkable

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January 10, 2020

Image of the Week - An Aleutian Eruption, Day & Night

The Shishaldin Volcano on the eastern edge of Alaska's Aleutian Island chain erupted with activity in January of 2020. The eruption on the island of Unimak sent an ash cloud nearly 5 miles into the sky on January 7th, sparking ash alerts for aviators, mariners, and residents of nearby communities. Landsat 8 captured both day and night imagery of the event as it happened.

January 8, 2020

Image of the Week - Antarctica's Summer Solstice

It's winter in the northern hemisphere, but in Antarctica, summer has just begun. At Zucchelli Station the summer solstice occurred on December 22nd, 2019 at 5:19pm local time. The high temperature that day was a balmy 34 degrees Fahrenheit. These images from Landsat 8 show the distinct difference in sun angles cause by the change in seasons. The September image is from

A satellite image that shows the eruption during the day and the night.
January 7, 2020

An Aleutian Eruption, Day and Night

The Shishaldin Volcano on the eastern edge of Alaska's Aleutian Island chain erupted with activity in January of 2020.

Comparison image for the Antarctica Summer Soltice.
December 13, 2019

Antarctica's Summer Solstice

It's winter in the northern hemisphere, but in Antarctica, summer has just begun. At Zucchelli Station the summer solstice occurred on December 22nd, 2019 at 5:19pm local time.

November 18, 2019

Image of the Week - Fires in Lebanon

Wildfires burned across Lebanon in mid-October, 2019. A pair of images taken just ten days apart by the European Space Agency's Sentinel-2A satellite show the burn scar from one of the larger wildfires. North of the fire scar is the country's capital, Beirut. The October 18th image reveals several bright spots on the city's streets from numerous fires of a different type.