ORAC-CC4CL (the Optimal Retrieval of Aerosol and Cloud - Community Code for CLimate) is an optimal estimation retrieval scheme for the estimation of aerosol and cloud properties from a wide range of visible-infrared imaging satellites, such as MODIS, AATSR, AVHRR and SEVIRI. It has been used to produce analysis-ready datasets of cloud and aerosol properties as part of the ESA CCI project and is currently supported by NCEO.

New users should begin with the introduction and installation instructions.

This file and the associated documentation and source code files are part of ORAC. ORAC is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. ORAC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with ORAC. If not, see http:https://www.gnu.org/licenses/.