Data from the Multiple Unit Large Volume In Situ Filtration System (MULVFS) used during the JGOFS Equatorial Pacific Process Study (EQPAC)

During the fourth cruise (TT012), data were OBOB collected at 5 stations along 140 deg W longitude from 17 deg S latitude to the equator. A Multiple Unit Large Volume in situ Filtration System (MULVFS) was used to determine concentrations of various seawater constituents (C, N, S, Na, Ca, Mg, K, Sr, CaCO3, P, Si(opal), Al, Ba, Mn, Fe, Cu, Pb) during the TT007 and TT011 cruises. The MULVFS was used concurrently with an STD (Salinity, Temperature, Depth) device and a transmissometer.

An RGB optical scanner was used to determine particle size distributions after functionally defining the >53 micrometer size class with 53 micrometer polyester screen filters. Currently, only the optical particle densities, transmissometer and STD information are available on-line. The data is public domain and can be retrieved on-line at "usjgofs.whoi.edu/jg/dir/jgofs/" [The information in this summary was taken from the JGOFS World Wide Web pages.]