Notice to users: The public domain data you are about to download are contributed by the Maritime Aerosol Network (MAN), a component of the International AERONET Federation. Each cruise has Principal Investigators (PIs) responsible for instrument deployment, maintenance and data collection. The PIs have priority use of the data collected during the ship cruise. The PIs are entitled to be notified when using their cruise data. PIs contact information are available on data charts and in downloaded data files for each cruise.