Model simulations of elemental and isotopic heavy noble gas ratios using the Transport Matrix Method (TMM)

• Main Authors: Seltzer, Alan M., Barry, Peter, Jenkins, William J., Khatiwala, Samar, Nicholson, David P., Smethie Jr., William M., Stanley, Rachel, Stute, Martin
• Format: Dataset
• Language: English
• Published: Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: [e-mail] 2023
• Subjects: noble gas; North Atlantic; nitrogen; gas exchange; North Atlantic Deep Water
• Online Access: https://hdl.handle.net/1912/29722

Dataset: Elemental and isotopic noble gas ratios and N2/Ar from the North Atlantic: model simulations This dataset includes model simulations of the following tracers using the Transport Matrix Method (TMM): (i) 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), and (ii) 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. Together these measurements and model simulations provide insight into physical processes governing gas exchange in the high-latitude regions of North Atlantic Deep Water formation, and a comparison of physical simulations of N2/Ar ratios to observations in TTO samples reveals excess N2 that arises from benthic denitrification in the deep North Atlantic. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/890293 NSF Division of Ocean Sciences (NSF OCE) OCE-2122427, NSF Division of Ocean Sciences (NSF OCE) OCE-1923915