CLOud Processing of regional Air Pollution advecting over land and sea (CLOPAP) is a NERC Polluted Troposphere Research Programme project (Round 1 - NER/T/S/2002/00147 - Duration 2002 - 2005) led by Prof. Tom Choularton, University of Manchester.

CLOPAP is an aircraft measurement campaign using the FAAM BAe-146-301 aircraft to make measurements of the ageing of the London plume in the cloudy boundary layer. Measurements will be made of the evolution of trace gases, aerosol and cloud properties. These will be supported by modelling studies. The flights were scheduled to take place between March and September 2005.

The Programme Superintending Officer was Dr. Ruth Kelman: rkel@nerc.ac.uk
The chairman of the Programme Steering Committee was Prof Gerard Jennings (Galway, Ireland): gerard.jennings@nuigalway.ie