Operational Land Imager (OLI)

Instrument

image

blue arrow Instrument Overview

The Operational Land Imager (OLI), on board Landsat 8 measures in the visible, near infrared, and short wave infrared portions of the spectrum. Its images have 15 m panchromatic and 30 m multi-spectral spatial resolutions along a 185 km wide swath, covering wide areas of the Earth’s landscape while providing sufficient resolution to distinguish features like urban centres, farms, forests and other land uses. The entire Earth falls within view once every 16 days due to Landsat 8’s near-polar orbit.

Instrument Design

The Landsat Operational Land Imager (OLI) uses a technological approach demonstrated by the Advanced Land Imager (ALI) sensor flown on NASA's experimental EO-1 satellite, which operated from 2000 to 2017.

OLI provides two new spectral bands in respect to the Landsat 7 ETM+ instrument, one tailored especially for detecting cirrus clouds (band 9, new Near Infra-Red (NIR) band) and the other for coastal zone observations (band 1, new deep blue visible channel). It measures in the visible, NIR, and Shortwave Infra-Red (SWIR) portions of the electromagnetic spectrum and offers 15 m panchromatic, and 30 m multi-spectral (VIS/NIR/SWIR) spatial resolution. The scene size is 185x180 km.

OLI was built by the Ball Aerospace & Technologies Corporation.

 

OLI Band Information

Band No. Band Name Spectral Range (nm) Use of data
1 New Deep Blue 433-453 Aerosol/coastal zone
2 Blue 450-515 Pigments/scatter/coastal
3 Green 525-600 Pigments/coastal
4 Red 630-680 Pigments/coastal
5 NIR 845-885 Foliage/coastal
6 SWIR 2 1560-1660 Foliage
7 SWIR 3 10.4-12.5 (TIR) Plant heat stress, thermal mapping, soil mapping
8 PAN 500-680 Image sharpening
9 SWIR 1360-1390 Cirrus cloud detection

 

For further information, see OLI on the NASA website.

blue arrow Data

blue arrow DATA DOWNLOAD

Download Landsat 8 products through the ESA Landsat 8 portal. The data is freely available to registered EO-SSO users

Watch in real time (less than a minute delay during acquisition) the Landsat 7 and 8 acquisitions over Matera and Kiruna station footprints from Landsat 7 and 8 Real Time Acquisitions.

blue arrow DATA DESCRIPTION

ESA offers to registered user the access through the Landsat 8 portal to the following data collection

Further information can be found on the Products Information page.

blue arrow Cal/Val

The goal of OLI calibration and validation activities is to verify the accuracy and quality of data the instrument acquires.

blue arrow Quality Control Reports

Quality Control Reports are available for OLI in three different varieties covering quality monitoring, data unavailability and any product anomalies.