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 MELVILLE sailed several weeks after the R/V REVELLE to arrive in the study area just as the 'patches' were forming in response to iron fertilization. The MELVILLE's team planned to make detailed measurements of phytoplankton physiology and rate processes, and to sample daily for phytoplankton growth rates and biomass, soluble and particulate iron and zooplankton biomass. A cruise logbook includes daily entries filed by the Chief Scientist aboard each vessel.
Dataset | Brief Description |
---|---|
log_SFX_MV | SOFeX Melville cruise sampling event log |
ship_track_SFX | SOFeX project cruise track animation |
cruise description | SOFeX cruise narrative |
LVP_pump | Carbon and Nitrogen concentration from filtered in situ LVP pump samples |
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) |
Thorium-234 | Thorium 234, POC and biogenic silica |
Thorium-234 Uranium-238 | Thorium-234 and Uranium-238 |
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 |
chlorophyll underway | Fluorometric chlorophyll from SCUFA underway sampling apparatus |
POM_MV | Particulate Organic Matter (POM) from Niskin and Trace Metal clean bottles |
nutrients_bottle | Nutrient concentrations and chlorophyll from bottle samples |
nutrients-Dilution exp | Nutrient concentrations from bottle sample dilution experiments |
nutrients-enrichment exp | Nutrient concentrations from bottle sample enrichment experiments |
nutrients-underway | Nutrient measurements from underway flow-through system |
CTD underway | unprocessed CTD data from the ship's underway system |
drifter navigation | SOFeX project South Patch Drifter Navigation |
PAR | Downwelling PAR measured above the surface of the ocean |
bacteria | Bacterial Abundance and Production from bottle samples |