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EROS CalVal Center of Excellence (ECCOE)

The EROS Cal/Val Center of Excellence (ECCOE) is a global leader in improving the accuracy, precision, and quality of remote sensing data. ECCOE experts provide support to Landsat Calibration/Validation, Uncrewed Aircraft Systems, Lidar-3DEP, and Satellite Derived Bathymetry activities. 

Landsat Calibration and Validation 

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landsat 7 artist rendering over earth

 

The USGS ECCOE Landsat Cal/Val Team, along with their NASA counterparts, maintains primary responsibility for radiometric and geometric characterization and the calibration and validation of the Landsat instruments and spacecrafts. 

The Team continually monitors the geometric and radiometric performance of active Landsat missions and makes calibration adjustments as needed to maintain data quality at the highest level. Results of the analysis are summarized in quarterly USGS Open File Reports.

This work includes both the ongoing operations of active Landsat missions, as well as the retired Landsat missions. 

Visit the Landsat Calibration and Validation webpage to learn more. 

 

 

Joint Agency Commercial Imagery Evaluation (JACIE)

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JACIE image

The Joint Agency Commercial Imagery Evaluation (JACIE) was formed to leverage resources from several Federal agencies for the characterization of remote sensing data and to share those results across the remote sensing community.  Consisting of representatives from six Federal agencies, JACIE provides independent characterizations of image and image-derived end products. 

JACIE is the strong collaboration and enhanced working relationships between government and non-governmental organizations to understand remote sensing information and make it more useful to the user community. JACIE Workshops are held each year. 

Visit the JACIE webpages to learn more. 

 

Earth Observing Satellites Online Compendium

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Screenshot of the Earth Observing Satellites Online Compendium

 

The JACIE Earth Observing Satellites Online Compendium contains details about past, present and future Earth observing satellites and the sensors they carry.  

Derived from print versions of Compendiums published in 20192020, and 2022, this resource has been developed and is managed by the Requirements, Capabilities and Analysis for Earth Observation (RCA-EO) team at the USGS EROS Center in Sioux Falls, South Dakota. 

Access the Earth Observing Satellites Online Compendium 

 

 

 

Lidar

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Lidar Scan of South Dakota Capitol Building

 

Lidar data and their derivative metrics are fundamental inputs to many areas of scientific research,  including flood, erosion, and coastal modeling and mapping, fault detection, land-surface mapping, landslide and volcano hazards, and mapping forest canopy. 

Access Lidar information 

 

 

 

 

 

 

Uncrewed Aerial Systems

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Uncrewed Aerial System Composite Image

 

Three-dimensional (3D) data capture technologies continue to become more commonplace, as Uncrewed Aerial Systems (UAS) have become available. 

UAS's allow for new opportunities for gathering data essential to land management and Earth science.  The potential of these systems requires that they be able to reliably gather accurate data.  

Learn more about Uncrewed Aerial Systems

 

 

 

 

 

 

Test Sites Catalog

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Test Sites Catalog July 2021

 

The USGS ECCOE Test Sites Catalog began in 2007 to provide information about effective radiometric, geometric, and spatial qualities useful in the calibration of Earth observation sensors. The catalog now contains prime candidate test sites worldwide for the calibration and post-launch characterization of space-based optical imaging sensors. The number of Earth-observing sensors and their derived science products continue to grow rapidly. 

Accurate, well-documented calibration is needed to understand and address local and global science and societal impacts and benefits. 

Access the Test Sites Catalog

 

News

Upcoming Interruption to EROS Processing and Distribution Systems

Upcoming Interruption to EROS Processing and Distribution Systems

2025 William T. Pecora Award Nominations Now Being Accepted

2025 William T. Pecora Award Nominations Now Being Accepted

International Partners Discuss Landsat Next, Evolving Technologies

International Partners Discuss Landsat Next, Evolving Technologies

Publications

System characterization report on Resourcesat-2A Advanced Wide Field Sensor

Executive Summary This report documents the system characterization of the Indian Space Research Organisation Resourcesat-2A Advanced Wide Field Sensor (AWiFS) and is part of a series of system characterization reports produced by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports describe the methodology and procedures used for...
Authors
Mahesh Shrestha, Minsu Kim, Aparajithan Sampath, Jeffrey Clauson

Landsat surface product validation instrumentation: The BigMAC exercise

Users of Earth remotely sensed optical imagery are increasingly demanding a surface reflectance or surface temperature product instead of the top-of-atmosphere products that have been produced historically. Validating the accuracy of surface products remains a difficult task since it involves assessment across a range of atmospheric profiles, as well as many different land surface types...
Authors
Dennis Helder, Mahesh Shrestha, Joshua J. Mann, Emily M. Maddox, Jeffrey Irwin, Larry Leigh, Aaron Gerace, Rehman Eon, Lucy Falcon, David Conran, Nina G. Raqueno, Timothy Bauch, Christopher Durell, Brandon Russell

System characterization report on Resourcesat-2A Linear Imaging Self Scanning-4 sensor

Executive Summary This report documents the system characterization of the Indian Space Research Organisation Resourcesat-2A Linear Imaging Self Scanning-4 (LISS–4) sensor. It is part of a series of system characterization reports produced by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports describe the methodology and...
Authors
Mahesh Shrestha, Aparajithan Sampath, Minsu Kim, Seonkyung Park, Jeffrey Clauson

Science

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Eyes on Earth Episode 134 – Data Accuracy: The Calibration and Validation of Landsat

Researchers and other satellite programs rely on the scientifically correct data from Landsat—every pixel and every spectral band that is measured.
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Eyes on Earth Episode 94 – EROS 50th: Collaborations with SDSU

South Dakota State University, a land grant university less than an hour from EROS, has had links to Landsat and EROS throughout their existence.
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Eyes on Earth Episode 94 – EROS 50th: Collaborations with SDSU

South Dakota State University, a land grant university less than an hour from EROS, has had links to Landsat and EROS throughout their existence.
Learn More

Eyes on Earth Episode 74 – A Satellite Cross Calibration Mission

Eyes on Earth is a podcast on remote sensing, Earth observation, land change and science, brought to you by the USGS Earth Resources Observation and Science (EROS) Center. In this episode, we hear how a new mission will make it easier to use satellite datasets interchangeably.
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Eyes on Earth Episode 74 – A Satellite Cross Calibration Mission

Eyes on Earth is a podcast on remote sensing, Earth observation, land change and science, brought to you by the USGS Earth Resources Observation and Science (EROS) Center. In this episode, we hear how a new mission will make it easier to use satellite datasets interchangeably.
Learn More

Multimedia

a photo of a greenspace with trees and asphalt road
The BigMAC Exercise Site
The BigMAC Exercise Site
picture of JACIE 2025 in person attendees
JACIE 2025 Attendees
JACIE 2025 Attendees
Number of Commercial, Government-Civil Satellites Launched
Number of Commercial, Government-Civil Satellites Launched
Number of Commercial, Government-Civil Satellites Launched
Map of Earth Observing Satellites
Countries with Earth Observing Satellites
Countries with Earth Observing Satellites
Landsat Missions Timeline
Landsat Missions Timeline
Landsat Missions Timeline
Spatial Resolution Digital Imagery Guideline
Spatial Resolution Digital Imagery Guideline
Spatial Resolution Digital Imagery Guideline
The attendees of the Landsat Ground Station Operators Working Group (LGSOWG) #52 meeting in Canberra, Australia November 2024
Landsat Ground Station Operators Working Group 52 Meeting Attendees
Landsat Ground Station Operators Working Group 52 Meeting Attendees
JACIE 2025 Workshop deadlines
JACIE 2025 Workshop deadlines
JACIE 2025 Workshop deadlines
JACIE 2025 Workshop Save the Date
JACIE 2025 Workshop Save the Date
JACIE 2025 Workshop Save the Date
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