The Land Sea Interaction (LSI) team conducts sampling across a transect from sea to coast to inland covering about 200 meters in length. The team travels with a pickup car and a mobile lab van. Four stops are selected across the transect and samples are collected from each stop. In every stop of the transect, rich metadata are documented, which includes land use and management, pH, luminosity, vegetation, conductivity, and moisture levels among others. In every stop, an aerosol filtering machine is installed with a tripod. At shallow waters at the beach water is collected and then filtered immediately at the mobile lab in the van using three electric pumps. At the beach, 3 samples of superficial sediments are collected across a horizontal 40 meter line. Each sediment sample has 3 different cores collected as a triangle. The superficial sediment samples will be analysed for integrative omics, organic carbon, chlorophyll,  pollutants, metals, xenobiotics and others. The remaining 3 stops of the transect are for top soil and plant samples. Leafs from the five most common plants are sampled for metabolomics, each plant is sampled twice; one sample is frozen and one is dried. Three top soil samples are collected in each stop of the transect and along a 40 meter vertical path on the transect. Each top soil sample has 5 cores which are mixed together. Integrative omics analyses will be carried out in these samples along with physical and chemical properties.

Tara schooner team is also collecting samples at the same time with the LSI team in selected locations. Tara is collecting coastal and offshore water columns samples and aerosol samples for integrative omics. All these samples together are about to be integrated to have a holistic understanding of the complex interface of land and sea in coastal ecosystems.