Brief cruise plan description:
Three ships were involved in the SOFeX experiment. Each ship operated in the study area at a different time to afford the longest observation time. The designations SOFeX-N and SOFeX-S are sometimes used to distinguish between two iron enriched patches - one in low silicate waters north of the polar front (SOFEX-N), and the other in high silicate waters south of the polar front (SOFEX-S). All three ships, Melville (MV), Revelle (RR) and Polar Star (PS), worked in SOFEX-S, but only the Revelle and Melville worked in the SOFeX N patch and shuttled between the two patches.
The R/V ROGER REVELLE from Scripps Institution of Oceanography sailed first. The REVELLE team added iron to two areas referred to as 'the North and South patches'. After the iron and an inert chemical tracer (SF6) were added, the REVELLE's primary mission was to map the size and characteristics of the South patch using a SeaSOAR fish towed behind the ship that pumped water up to the ship for sampling and analysis. The REVELLE also collected samples for initial biological shipboard mapping of iron concentrations, nutrients, chlorophyll, and photosynthetic efficiency. A cruise logbook includes daily entries filed by the Chief Scientist aboard each vessel.
Dataset | Brief Description |
---|---|
log_SFX_RR | SOFeX Revelle cruise sampling event log |
ship_track_SFX | SOFeX project cruise track animation |
cruise description | SOFeX cruise narrative |
pigments HPLC | pigments from HPLC analysis of bottle samples |
ship_schedules_SFX | ship activity schedule PDF |
log_SFX | SOFeX multi-ship sampling event log |
CTD | SOFeX project CTD profile data |
inventory | SOFeX Cruise Data Inventory |
POM | Particulate Organic Matter (POM) |
primary_production | Primary Productivity and Chlorophyll from bottle samples |
nano_microplankton | nano- and microplankton biomass, epifluorescence microscopy |
bottle_SIO | SIO-CTD Rosette bottle basic CTD hydrographic and nutrient data |
chlorophyll_profile | Fluorometric chlorophyll from Niskin and TM bottle samples |
CTD_TMR_SFX_RR | TMR CTD pressure, temperature, salinity profiles |
bottle_TM_RR | Trace Metal Clean Rosette bottle hydrographic and nutrient data |
iron_underway | Underway measurement of Iron (Fe (III)) |
SFX Survey Summary | SOFeX Revelle surveys and iron additions |
SFX Patch Determination | SOFeX Revelle SF6 Patch Determination Table |