Dataset: Measurements of Kr/Ar and N2/Ar ratios in stored dissolved gas samples collected in 1981 through the Transient Tracers in the Ocean (TTO) program North Atlantic Survey (NAS)

Final no updates expectedDOI: 10.26008/1912/bco-dmo.890427.1Version 1 (2023-02-23)Dataset Type:Cruise Results

Principal Investigator: Alan M. Seltzer (Woods Hole Oceanographic Institution)

Co-Principal Investigator: Peter Barry (Woods Hole Oceanographic Institution)

Co-Principal Investigator: William J. Jenkins (Woods Hole Oceanographic Institution)

Co-Principal Investigator: Samar Khatiwala (University of Oxford)

Co-Principal Investigator: David P. Nicholson (Woods Hole Oceanographic Institution)

Co-Principal Investigator: William M. Smethie Jr. (Lamont-Doherty Earth Observatory)

Co-Principal Investigator: Rachel Stanley (Wellesley College)

Co-Principal Investigator: Martin Stute (Lamont-Doherty Earth Observatory)

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

Project: Collaborative Research: Probing the Ventilation Efficiency of the Deep Ocean with Conservative Dissolved Gas Tracers in Archived Samples (TTO NGs and O2)

Project: Collaborative Research: Novel constraints on air-sea gas exchange and deep ocean ventilation from high-precision noble gas isotope measurements in seawater (HPNGI)

Abstract

This dataset includes measurements of Kr/Ar and N2/Ar ratios in stored dissolved gas samples collected in 1981 through the Transient Tracers in the Ocean (TTO) program. These data were used, along with new observations of heavy noble gas ratios (elemental and isotopic ratios) from the Bermuda Atlantic Time-series (BATS) on cruise 10391 (30 April 2022 - 05 May 2022), to model simulations of these tracers using the Transport Matrix Method (TMM). Together these new measurements and model simulat...

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Note: all methods are described in detail in the accompanying publication currently in final review at Proceedings of the National Academy of Sciences.

Samples were collected via the Transient Tracers in the Ocean (TTO) North Atlantic Survey (NAS) in 1981 via shipboard degassing of ~285-liter Gerard Barrel samples. The extraction technique is described in detail in Smethie and Mathiue (1986). Aliquots of archived gas from these samples were analyzed in the Seltzer and Jenkins Labs at Woods Hole Oceanographic Institution for noble gas elemental ratios and O2/Ar and N2/Ar ratios following techniques described in Seltzer et al. (2023).

The model simulations are available as a related dataset at BCO-DMO. See: https://www.bco-dmo.org/dataset/890293

Related Datasets

IsSourceOf
Dataset: Elemental and isotopic noble gas ratios and N2/Ar from the North Atlantic: model simulations
Relationship Description: The TTO data in dataset 890427 were used in the development of the model in dataset 890293.
Seltzer, A. M., Barry, P., Jenkins, W. J., Khatiwala, S., Nicholson, D. P., Smethie Jr., W. M., Stanley, R., Stute, M. (2023) Model simulations of elemental and isotopic heavy noble gas ratios using the Transport Matrix Method (TMM). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-02-21 doi:10.26008/1912/bco-dmo.890293.1

Related Publications

Results
Seltzer, A. M., Nicholson, D. P., Smethie, W. M., Tyne, R. L., Le Roy, E., Stanley, R. H. R., Stute, M., Barry, P. H., McPaul, K., Davidson, P. W., Chang, B. X., Rafter, P. A., Lethaby, P., Johnson, R. J., Khatiwala, S., & Jenkins, W. J. (2023). Dissolved gases in the deep North Atlantic track ocean ventilation processes. Proceedings of the National Academy of Sciences, 120(11). https://doi.org/10.1073/pnas.2217946120
Methods
Smethie, W. M., & Mathieu, G. (1986). Measurement of krypton-85 in the ocean. Marine Chemistry, 18(1), 17–33. https://doi.org/10.1016/0304-4203(86)90073-3

Seltzer, A. M., Barry, P., Jenkins, W. J., Khatiwala, S., Nicholson, D. P., Smethie Jr., W. M., Stanley, R., Stute, M. (2023) Measurements of Kr/Ar and N2/Ar ratios in stored dissolved gas samples collected in 1981 through the Transient Tracers in the Ocean (TTO) program North Atlantic Survey (NAS). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-02-23 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.890427.1 [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