This dataset comprises water column measurements of water temperature, conductivity, pressure, chlorophyll, currents, sound velocity as well as meteorology measurements of air temperature, pressure, relative humidity, Photosynthetically Active Radiation (PAR), Total Irradiance (TIR) and navigation data as platform orientation, position, bathymetry from instruments deployed during several cruises that took place from September 2006 to March 2009. These data were collected as part of wider Bristish Antarctic Survey (BAS) science programme, Global Science in the Antarctic Context. The main objectives of DISCOVERY 2010 are to investigate the response of an ocean ecosystem to climate variability, climate change and commercial exploitation by identifying, quantifying and modeling the interactions and processes on different scales (from microscopic life to higher predators) and regions (local to circumpolar). The project was led by Eugene Murphy from BAS and involves different scientists from the BAS Ecosystems team.