The AUTEX / WINTEX (Autumn and Winter Experiments) project was a Met Office campaign on board the Facility for Airborne Atmospheric Measurements (FAAM) aircraft, that collected cloud physics and radiation data over the UK, from October 2004 to February 2007.

The dataset collection contains measurements of water vapour distribution in both the horizontal and the vertical, mixed phase cloud structure and ice initiation in cumulus clouds.

They also included studies into sea surface reflectance at low solar zenith angles, cirrus cloud radiative properties, microwave signature of 'bright band', clear air spectroscopy at night, clear air spectroscopy in the infrared and far infrared, land surface emissivity studies and the effect of inhomogeneity in clouds at low solar zenith angles. FAAM Bae-146 non-core data is now public, but raw Bae-146 core data is restricted to the FAAM staff.