AR84-03 (UFO 2024) - Chemistry & Tracers

Combined chemical and tracer measurements from the AR84-03 cruise aboard the R/V Neil Armstrong (19 August–26 September 2024), led by Chief Scientist Robert S. Pickart of the Woods Hole Oceanographic Institution. The “Merged_Data” worksheet combines cruise and station metadata with hydrographic measurements and the following chemical and tracer parameters: chlorofluorocarbon-12 (CFC-12), sulfur hexafluoride (SF₆), Winkler dissolved oxygen, nutrients (total nitrate, phosphate, and silicate), dissolved inorganic carbon (DIC), total alkalinity, iodine-129 (¹²⁹I), uranium-236 (²³⁶U, including ratios to ²³⁸U), tritium (³H), dissolved inorganic radiocarbon reported as fraction modern (F14C) and Δ¹⁴C in ‰, and dissolved organic carbon (DOC) concentration. Descriptions and units for each column are provided in the “Column_Dictionary” worksheet. Station metadata are provided in the “Station_Metadata” worksheet. Where applicable, quality-control (QC) flags follow the World Ocean Circulation Experiment (WOCE) framework described in the “WOCE_QC_Codes” worksheet.