ACOLITE is an atmospheric correction and processor for the Landsat-8 (L8) / Operational Land Imager (OLI) and Sentinel-2A (S2A) / MultiSpectral Imager (MSI) developed at RBINS. It allows simple and fast processing of L8 and S2A images for marine and inland water applications. Features include generation of RGB images before (TOA) and after (RCO) Rayleigh correction, atmospheric correction of water bodies and extraction of rectangular regions of interest (defined by bounding coordinates). Level 2 outputs currently are marine reflectance and multiple scattering aerosol reflectance, that can be saved as PNG maps and geolocated datasets in a NetCDF file.

The atmospheric correction is fully described in Vanhellemont & Ruddick (2014, 2015, 2016):

Vanhellemont, Q., Ruddick, K., 2014. Turbid wakes associated with offshore wind turbines observed with Landsat 8. Remote Sens. Environ. 145, 105–115. (

Vanhellemont, Q., Ruddick, K., 2015. Advantages of high quality SWIR bands for ocean colour processing: examples from Landsat-8. Remote Sens. Environ. 161, 89–106. (

Vanhellemont Q. & Ruddick K. 2016. ACOLITE For Sentinel-2: Aquatic Applications of MSI imagery. Submitted for the proceedings of the 2016 ESA Living Planet Symposium held in Prague, Czech Republic, 9-13 May 2016, ESA Special Publication SP-740. Download

Below you can download the manual and Windows, Linux and Mac versions.

Current version: Python 'public beta' 20180419.0

Questions? Visit our ACOLITE forum »

ACOLITE is provided by RBINS as an experimental tool, without explicit or implied warranty. Use of the program is at your own discretion and risk.

ACOLITE development was funded by the Belgian Science Policy Office STEREO program under contracts SR/37/135 (JELLYFOR project) and SR/00/325 (PONDER project), and by the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 606797 (HIGHROC project).

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