Landsat 8

Landsat 8 carries two push-broom instruments: the Operational Land Imager (OLI), and the Thermal Infrared Sensor (TIRS).The spectral bands of the OLI sensor, while similar to Landsat 7’s ETM+ sensor, provides enhancement from prior Landsat instruments,...
Landsat 8 data products are processed to be consistent with the existing Landsat 1 to Landsat 7 Level-1 data products.The Level 1 Product and LandsatLook (full-resolution jpg) files are available for download at no charge from GloVis, EarthExplorer or...
Landsat 8's Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) sensors provide improved signal-to-noise (SNR) radiometric performance quantized over a 12-bit dynamic range.This translates into 4096 potential grey levels in an image compared...
Along with similar multispectral bands used on the Landsat 7 ETM+ sensor, the addition of a new coastal/aerosol band and a new cirrus band provides improved data products. Two thermal bands (TIRS) capture data with a minimum of 100 meter resolution, but...
The Landsat 8 OLI/TIRS Pre-WRS-2 data set contains nearly 10,000 scenes acquired by the Operational Land Imager (OLI) and/or Thermal Infrared Sensor (TIRS) sensors after launch (February 11, 2013) through April 10, 2013, when the satellite achieved...
Landsat 8 follows the WRS-2 position previously used by Landsat 5. This provides 8-day coverage when coupled with Landsat 7 data.The Landsat 8 acquisition schedule and calendar is available on this USGS Landsat Missions Acquisition website..
Because Landsat 8 data includes additional bands, the combinations used to create RGB composites differ from Landsat 7 and Landsat 5. For instance, bands 4, 3, 2 are used to create a color infrared (CIR) image using Landsat 7 or Landsat 5. To create a...
Landsat 8's OLI sensor includes a new cirrus band (band 9: 1.360-1.390 µm) to provide better detection of high-altitude clouds that are not otherwise visible in other bands and could affect analysis. Cirrus clouds appear bright while most land surfaces...
Landsat 8's OLI sensor includes a new coastal/aerosol band (band 1: 0.4333-0.453 µm) that allows the closer investigations of coastal waters, relative to MODIS and SeaWiFS sensors. It also works well for estimating the concentration of aerosols in the...
The Quality Assessment (QA) band is an important addition to Landsat 8 data files. Each pixel in the QA band contains a decimal value that represents bit-packed combinations of surface, atmosphere, and sensor conditions that can affect the overall...