Dataset: Dissolved organic matter sulfur and carbon analysis of samples collected between 2010 and 2021 from various locations globally

ValidatedFinal no updates expectedDOI: 10.26008/1912/bco-dmo.927046.1Version 1 (2024-05-09)Dataset Type:Cruise ResultsDataset Type:Other Field Results

Principal Investigator: Alex Sessions (California Institute of Technology)

Student: Alexandra Phillips (California Institute of Technology)

BCO-DMO Data Manager: Shannon Rauch (Woods Hole Oceanographic Institution)

Project: Resolving sources of marine DOM via novel sulfur isotope analyses (S isotopes in marine DOM)

Abstract

The following dataset of SPE (solid phase extracted) DOM (dissolved organic matter) accompanies Phillips et al. 2022 (doi: 10.1073/pnas.2209152119). Our project sought to address the question of where long-lived organic molecules that are dissolved in the oceans come from, in particular molecules containing sulfur (S). Our approach was to measure the relative abundance of two stable sulfur isotopes (S-32 and S-34) in these molecules, which is technically very difficult due to the presence of mil...

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Samples spanned basins and water depths, including the North Atlantic Gyre, Northeast Pacific oxygen minimum zone, Northeast Pacific Shelf, North Pacific Gyre, San Pedro Basin, Caeté Estuary, South Pacific Gyre, and the North Sea. Samples spanned depths of 0 to 4800 meters. Exact location data, including latitude, longitude, and collection depth are provided in the dataset. Most data in this dataset represent measurements of aliquots of archived samples from collaborators; these were collected on many different cruises, on many different dates, around the world. New samples represented in this dataset include: 12 samples collected at station HOT on the R/V Kilo Moana in November 2020 (KM2013) and 12 samples collected at station BATS in September 2020 (AE2014).

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Related Publications

Results
Phillips, A. A., White, M. E., Seidel, M., Wu, F., Pavia, F. F., Kemeny, P. C., Ma, A. C., Aluwihare, L. I., Dittmar, T., & Sessions, A. L. (2022). Novel sulfur isotope analyses constrain sulfurized porewater fluxes as a minor component of marine dissolved organic matter. Proceedings of the National Academy of Sciences, 119(41). https://doi.org/10.1073/pnas.2209152119
Methods
Dittmar, T., Koch, B., Hertkorn, N., & Kattner, G. (2008). A simple and efficient method for the solid-phase extraction of dissolved organic matter (SPE-DOM) from seawater. Limnology and Oceanography: Methods, 6(6), 230–235. doi:10.4319/lom.2008.6.230
Methods
Phillips, A. A., Wu, F., & Sessions, A. L. (2021). Sulfur isotope analysis of cysteine and methionine via preparatory liquid chromatography and elemental analyzer isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry, 35(4). Portico. https://doi.org/10.1002/rcm.9007

Phillips, A., Sessions, A. (2024) Dissolved organic matter sulfur and carbon analysis of samples collected between 2010 and 2021 from various locations globally. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-05-09 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.927046.1 [access date]

Terms of Use

This dataset is licensed under Creative Commons Attribution 4.0.


If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.

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Funded by the U.S. National Science Foundation