Sulphur hexafluoride (SF6) measured in surface water after fertilization in the area of the EisenEx experiment

Samples were collected from the Polarstern's pumped seawater supply.The data represent an integration of the SF6 in the surface seawater over a three minute period. Data were calibrated against the discrete SF6 data. There are inevitably some differences between the two traps (1&2). Each trap is identified in case the user wants to select only one for consistency.Values are given after subtraction of the background SF6 signal!