We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
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OLI Resources
Earthdata resources for users working with NASA’s Operational Land Imager (OLI) include tutorials and other learning resources, news announcements such as instrument updates and data releases, user guides and related documents, and frequently asked questions.
OLI Learning Resources
FIRMS has incorporated additional capabilities into the HLS dropdown menu of its interactive map, including four vegetation indices and the ability for user to create their own red, green, blue (RGB) image composites through the TiTiler-CMR service.
Tutorial
April 29, 2026
This three-part ARSET training covers flood monitoring via remote sensing, NASA flood products, and GEOGLOWS streamflow predictions.
Training
June 18-25, 2026
Create your own Harmonized Landsat Sentinel 2 (HLS) image composite or select from a preset list.
Tutorial
April 29, 2026
This ARSET training covers how to acquire, use, and derive NDVI imagery from Landsat and MODIS.
Training
Feb. 10 - March 2, 2016
This ARSET training explores how the R statistical coding language can be used to classify land cover and quantify changes in land cover over time.
Training
Feb. 24-26, 2026
This ARSET training introduces STREAM, a web tool for monitoring chlorophyll-a concentration, Secchi disk depth, and total suspended solids in inland lakes and coastal regions.
Training
Feb. 10-17, 2026
Using SNWG's OPERA DSWx product, USGS is able to monitor streamflow from space, augmenting hazardous in-person collection techniques.
Data in Action
July 8, 2025
Learn how to search for, access, and process HLS data.
External Resource
GitHub Repository
Sept. 20, 2024
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Image captured on Oct 10, 2023, by the OLI instrument aboard the Landsat 8 and 9 satellites.
Worldview Image of the Week
Oct. 19, 2023
Users can now access the full Harmonized Landsat and Sentinel-2 (HLS) data archive back to April 2013.
News
Sept. 6, 2023
Based on NASA's Harmonized Landsat Sentinel-2 (HLS) data, the artificial intelligence (AI) foundation model is a milestone in the application of AI for Earth science.
News
Aug. 3, 2023
NASA Earth science data help scientists like Dr. Dan Runfola estimate the socioeconomic status of individuals around the globe.
Data User Story
July 27, 2023
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Frequently Asked Questions
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