h2o2 93aug 26aug93-25sep93 Hydrogen peroxide of discrete water column samples. station depth(m) h2o2(nM) Palmer Stations C and E, all BOPS "even" grid stations, most GoFlo (depths 1 and 150m) and under-ice stations, some ice and snow samples Samples incubated with a reaction mix (peroxidase and (p-hydroxyphenyl)acetic acid in pH8.8 Tris), fluorescent dimers formed in direct proportion to H2O2 concentration, fluorescence measured. H2O2 formation from photolytic degradation of DOM, wet deposition, meltwater and runoff and H2O2 degradation by bacterial enzymatic activity investigated. Mixed-layer depths can be determined empirically from data on H2O2 concentrations and dynamics. lter, southern ocean, antarctic, hydrogen peroxide ascii samples analysed on board ship David M. Karl David M. Karl G. Tien, T. Rust G. Tien

Datafile Form V1.3 for describing a data file.