A moored oceanographical and meteorological buoy system operating in Prince William Sound, Alaska since late 1991. This started out as part of the CFOS project but became part of the SEA project in 1994. The buoy is moored to the southeast of Naked Island, Alaska in water 190 m deep. It is usually deployed in late February or early March and recovered in late November. C–LAB consists of a suite of meteorological instruments to measure wind speed and direction, air temperature, and barometric pressure. Water temperature measurements are made at 11 different depths, and there is a fluorometer at 10 m depth to measure the fluorescence of microscopic phytoplankton. Data are collected 12–18 times per day via the ARGOS system.