(2025). DMS/O/P cycling during a marine heatwave in the NE subarctic Pacific (August 2022). SEANOE. https://doi.org/10.17882/104612
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DMS/O/P cycling during a marine heatwave in the NE subarctic Pacific (August 2022)
This dataset is associated with the article "Exceptionally high dimethyl sulfide concentrations during a marine heatwave in the NE subarctic Pacific". The data was collected in August 2022 as part of the long-term Line P time-series program in the NE subarctic Pacific. The primary data consists of underway-collected concentrations of DMS and DMSP along both the Line P transect and a northwards oceanic-coastal return transect. Time-course concentrations of unlabelled and isotopically-labelled (D3/D6/13C) DMSP, DMS and DMSO tracers, and the biological DMS/O/P turnover rates derived from them, are also provided for 4 incubation experiments conducted at the major Line P stations P4, P16, P20, and P26 (i.e. Ocean Station Papa). Additional ancillary data includes primary photosynthetic parameters (Fo, Fm, Fv) and maximum photosynthetic efficiency (Fv/Fm), HPLC pigment concentrations, and CHEMTAX input parameters and outputs used to derive the phytoplankton taxonomic composition along Line P.
Disciplines
Biological oceanography, Chemical oceanography
Keywords
dimethyl sulfide (DMS), dimethyl sulfoxide (DMSO), dimethylsulfoniopropionate (DMSP), sulfur cycling, isotopic tracing, marine heatwave, photosynthetic efficiency (Fv/Fm), CHEMTAX, HPLC, community composition, phytoplankton
Location
52N, 47.5S, -123E, -146W
Devices
DMS/O/P cycling: SCIEX API 3200-series atmospheric pressure chemical ionization mass spectrometer coupled to a custom-built purge-and-trap box.
DMS/P underway concentrations: Hiden Analytical HPR-40 capillary inlet mass spectrometer (CIMS) coupled to a custom-built purge-and-trap box.
Photo-physiology: Soliense Inc. Light Induced Fluorescence Transient (LIFT) fast repetition rate fluorometer (LIFT-FRRf).
Data
| File | Size | Format | Processing | Access | end of embargo | |
|---|---|---|---|---|---|---|
Underway DMS and DMSP concentrations (nM) | 57 Ko | XLS, XLSX | Processed data | 2027-01-28 | ||
Time-course DMS concentrations (nM) from DMS/O/P turnover experiments | 17 Ko | XLS, XLSX | Processed data | 2027-01-28 | ||
DMS/O/P turnover rate constants (hr^-1) from DMS/O/P turnover experiments | 694 octets | CSV | Processed data | 2027-01-28 | ||
Primary photosynthetic parameters (Fo, Fm, Fv) and Fv/Fm from DMS/O/P turnover experiments | 1 Ko | CSV | Processed data | 2027-01-28 | ||
HPLC pigment concentrations (ug L^-1) along Line P | 28 Ko | XLS, XLSX | Processed data | 2027-01-28 | ||
CHEMTAX input parameters and derived taxonomic composition along Line P | 71 Ko | XLS, XLSX | Processed data | 2027-01-28 |
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