What data products are available for Landsat 8 scenes?
Landsat 8 Level 1 data products are made available shortly after acquisition to all users at no cost, as are all previously acquired Landsat 1-7 data.
All Landsat Level 1 data products are processed using standard parameters, which include cubic convolution resampling, north-up (map) orientation, Universal Transverse Mercator (UTM) map projection (Polar Stereographic for Antarctic scenes), and World Geodetic System (WGS) 1984 datum. Data are delivered in Georeferenced Tagged Image File Format (GeoTIFF) in compressed files for faster downloads. Details about processing levels of Landsat Level 1 data products can be found on http://landsat.usgs.gov/Landsat_Processing_Details.php.
Full resolution “natural” color composite (.jpg) files of Landsat images (named LandsatLook Images) are also available to download for easy use in presentations and non-scientific analysis.
Recognizing the need for new climate information products to meet national and international requirements, USGS scientists developed higher-level science data products (also known as Level 2). Higher-level data are processed to support time series of observational data with sufficient length, consistency, and continuity to record effects of climate change.
Atmospherically corrected Landsat surface reflectance data are the first Level 2 products provided by the USGS. Surface-reflectance-based spectral indices are also available. Landsat surface reflectance and other higher-level data products are considered provisional.
The Landsat Data Access webpage (http://landsat.usgs.gov/Landsat_Search_and_Download.php) provides information on how to access the data discovery portals and locate both Level 1 and high level science data products.