Earth Resources Observation and Science (EROS) Center


At the USGS EROS Center, we study land change and produce land change data products used by researchers, resource managers, and policy makers across the nation and around the world. We also operate the Landsat satellite program with NASA, and maintain the largest civilian collection of images of the Earth’s land surface in existence, including tens of millions of satellite images. 

What's New at EROS?


Eyes on Earth is a podcast covering a range of topics on remote sensing, satellite operations, and the science of Earth observation. Watch for new episodes every two weeks.

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Image of the Week

Image of the Week

Lake Havasu City's most famous landmark has origins across the Atlantic Oceans. Learn how the London Bridge made its way from the River Thames to an Arizona resort town.

London Bridge


Date published: May 18, 2020

Rising Seas: EROS Brings Valuable Elevation Knowledge to Islands, Coastlines

As sea levels rise around the planet, as storm surges threaten islands and coastal communities, decision makers face a lot of questions about how to protect their citizens and their landscapes.

Date published: May 12, 2020

Data Quality, Geometric Accuracy are Key Topics for 2020 JACIE and ECCOE Workshops

In a world where observing Earth’s landscapes from space has become more common for government agencies and commercial ventures, there is a question currently getting a lot of attention: Is there a way to make images from all those different and varied systems usable with each other?

Date published: May 12, 2020

EROS Scientists Publish Accuracy, Guidance for Global Evapotranspiration Data

Evapotranspiration (ET) presents a difficult problem.

Evaporation from the Earth’s surface and transpiration from the leaves of plants accounts for about 60 percent of the water budget – a budget that has implications for agriculture and food security the world over.


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Year Published: 2020

Land change monitoring, assessment, and projection

There is a pressing need to monitor and understand the rapid land change happening around the world. The U.S. Geological Survey is developing a new capability, called Land Change Monitoring, Assessment, and Projection (LCMAP), to innovate the understanding of land change. This capability is the Earth Resources Observation and Science Center's...

Rover, Jennifer; Brown, Jesslyn F.; Auch, Roger F.; Sayler, Kristi L.; Sohl, Terry L.; Tollerud, Heather J.; Xian, George Z.
Rover, J., Brown, J.F., Auch, R.F., Sayler, K.L., Sohl, T.L., Tollerud, H.J., and Xian, G.Z., 2020, Land change monitoring, assessment, and projection: U.S. Geological Survey Fact Sheet 2020–3024, 4 p.,

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Year Published: 2020

Gap fill of Land surface temperature and reflectance products in Analysis Ready Data

The recently released Landsat Analysis Ready Data (ARD) over the United States provides the opportunity to investigate landscape dynamics using dense time series observations at 30-m resolution. However, the dataset often contains data gaps (or missing data) because of cloud contamination or data acquisition strategy. We present a new algorithm...

Zhou, Qiang; Xian, George Z.; Shi, Hua

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Year Published: 2020

Operational global actual evapotranspiration: Development, evaluation, and dissemination

Satellite-based actual evapotranspiration (ETa) is becoming increasingly reliable and available for various water management and agricultural applications from water budget studies to crop performance monitoring. The Operational Simplified Surface Energy Balance (SSEBop) model is currently used by the US Geological Survey (USGS) Famine Early...

Senay, Gabriel; Kagone, Stefanie; Velpuri, Naga M.