Obs4Clim-Marine Atmospheric Composition Amsterdam

Atmospheric aerosols are an important component of the climate system, interacting with solar and telluric radiation. They serve as cloud condensation nuclei and ice-forming nuclei, thus modifying the radiative properties of clouds, their precipitating potential and their lifetime and spatial distribution. Above the oceans, which constitute the majority of the surface of the southern hemisphere, aerosols are mainly of marine origin: they are produced as sea-spray or are formed by the condensation of trace gases of biogenic origin. The mechanisms of marine aerosol emission are very poorly constrained in the models, in particular because of the lack of knowledge of the interactions with marine biology and the lack of observations in remote geographical areas such as in the Southern Ocean. The objective of this project is to implement observations of the properties of the aerosol relevant for climate studies over a long period of time on the Amsterdam station in the frame of the project Obs4Clim. These measurements will make the station a sentinel of climate change and will make it possible to host intensive campaigns. More focused on ocean-atmosphere interaction processes in a well-documented context.