©2020 Biological and Chemical Oceanography Data Management Office.Funded by the U.S. National Science Foundation
©2020 Biological and Chemical Oceanography Data Management Office.Continental shelves contribute a large fraction of the ocean’s new nitrogen (N) via N2 fixation; yet, we know little about how physical processes at the ocean’s margins shape diazotroph biogeography and activity. This dataset includes N2 fixation rates and hydrographic measurements collected at the Mid-Atlantic Bight shelfbreak front in July 2019. Rates were measured using the 15N2 bubble release method on repeat cross-frontal transects. This study was coordinated with the SPIROPA (‘Shelfbreak P...
Show moreThis dataset is derived from Selden et al. (2024) JGR Oceans Table S1, and McGillicuddy bottle data from TN368, the third SPIROPA cruise (https://www.bco-dmo.org/dataset/849340). The mean values of nitrogen fixation rates shown here are derived from nitrogen fixation incubation data (https://www.bco-dmo.org/dataset/928568)
Glossary of terms:
A = Atom-% enrichment
APN = Atom-% enrichment of the particulate nitrogen pool
BDL = Below detection limit
DNQ = Detectable but not quantifiable
LOD = Limit of detection
LOQ = Limit of quantification
N2 = Nitrogen gas
PETG = Polyethylene Terephthalate Glycol
PN = Particulate nitrogen
NFR = Nitrogen fixation rate
SUR = Specific uptake rate
t0 = time initial
tf = time final
Mulholland, M., Chappell, P. Dreux, Selden, C. (2024) Hydrography, nutrients, and nitrogen uptake rates from SPIROPA cruise TN368 in July 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-05-20 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/927927 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
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