A 4H JENA Ferrybox system runs continuously on RV Cefas Endeavour during all
surveys where appropriate since 2010, generating data across the North Sea,
Irish Sea, and English Channel at a resolution of one measurement per minute.
A continuous inflow is taken from a dedicated inlet and pump at approximately
4m under the waterline. Key parameters measured include sea surface
temperature (SST), through a hull mounted temperature probe**,**
salinity (SAL), chlorophyll fluorometry (FLUORS), turbidity
(FTU), and Photosynthetically Active Radiation (PAR). Other
parameters recorded include meteorological variables, oxygen concentrations,
and measures of photosynthetic activity. New data is added annually.
