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QDOAS is a cross-platform application that performs DOAS retrievals of trace gases from spectral measurements (satellite, ground-based, mobile or aircraft-based instruments).
The software is available for Windows, Linux and Mac OS operating systems.
The software evolves along with the measurement techniques and DOAS research, and has been extensively validated in different campaigns and algorithm comparisons. The friendly user interface, flexibility and the robustness of the algorithms largely contribute to QDOAS' success in the world.