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. 

Eyes on Earth

Eyes on Earth

Our final show from the September launch of Landsat 9 features a conversation with the “Mother of Landsat,” Virginia Norwood, who designed the Multispectral Scanner (MSS) used on early Landsat Missions.

Listen here

Image of the Week

Image of the Week

Water levels in Lake Powell, which supplies water to millions in the southwestern U.S., hit historic lows in 2021. Comparing Landsat imagery from 2017 and 2021 highlights the dramatic difference.

Lake Powell


Date published: December 6, 2021

VP Harris Leads National Space Council Meeting, Adds Department of Interior to Council

On Dec. 1, 2021, Vice President Kamala Harris convened the Biden-Harris Administration’s inaugural National Space Council meeting and laid out the Administration’s whole-of-government approach to ensure that space activities create opportunities that benefit the American people and the world.

Date published: December 1, 2021

Collaboration’s Quest: Examine Effects of Urban Heat Actions in Chicago

Chicago faced a tragic awakening to the dangers of extreme heat in July 1995, when more than 700 people died during a record-breaking heat wave that stretched for five days.

Date published: November 29, 2021

Pecora 22 Calls for Special Session Abstracts

The 22nd William T. Pecora Memorial Remote Sensing Symposium (Pecora 22) will convene in Denver, Colorado, USA from October 23 – 28, 2022, and will focus on all aspects of Earth observation, spanning scientific discoveries to operational applications, and from sensors to decisions.


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Year Published: 2022

Incorporating interpreter variability into estimation of the total variance of land cover area estimates under simple random sampling

Area estimates of land cover and land cover change are often based on reference class labels determined by analysts interpreting satellite imagery and aerial photography. Different interpreters may assign different reference class labels to the same sample unit. This interpreter variability is typically not accounted for in variance...

Stehman, Stephen V; Mousoupetros, John; McRoberts, Ronald E.; Naesset, Erik; Pengra, Bruce; Xing, Dingfan; Horton, Josephine

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Year Published: 2021

Landsat Collection 2 Level-2 Science Products

The U.S. Geological Survey produces research quality, applications ready, Level-2 Science Products derived from Landsat Collection 2 Level-1 data. These products are used to monitor, assess, and project changes in land use, land cover, and environmental conditions affecting the human condition, natural processes, and biological habitats. Landsat...

U.S. Geological Survey, 2021, Landsat Collection 2 Level-2 Science Products: U.S. Geological Survey Fact Sheet 2021–3055, 2 p.,

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Year Published: 2021

System characterization report on Resourcesat-2 Advanced Wide Field Sensor

Executive SummaryThis report addresses system characterization of the Indian Space Research Organisation Resourcesat-2 Advanced Wide Field Sensor (AWiFS) and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence in 2021. These...

Ramaseri Chandra, Shankar N.; Kim, Minsu; Christopherson, Jon; Stensaas, Gregory L.; Anderson, Cody
Ramaseri Chandra, S.N., Kim, M., Christopherson, J., Stensaas, G.L., and Anderson, C., 2021, System characterization report on Resourcesat-2 Advanced Wide Field Sensor, chap. G of Ramaseri Chandra, S.N., comp., System characterization of Earth observation sensors (ver. 1.1, November 2021): U.S. Geological Survey Open-File Report 2021–1030, 22 p.,