USAP-DC

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Water column biogeochemical data from Mercer Subglacial Lake Data DOI: https://doi.org/10.15784/601663 Cite as Dore, J., Barker, J., Hawkings, J., Li, W., Priscu, J. C., Science Team, S., et al. (2023) "Water column biogeochemical data from Mercer Subglacial Lake" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601663. AMD - DIF Record(s) USAP-1543537_1 Abstract This dataset contains water column biogeochemical properties measured on discrete samples collected from Mercer Subglacial Lake by the SALSA project. Data included are: specific conductance; carbonic acid system parameters (total alkalinity, total inorganic carbon, and pH); water stable isotopes (δ2H and δ18O); dissolved gases (oxygen, methane, nitrous oxide, and hydrogen); dissolved nutrients (ammonium, nitrite and phosphate), major anions (including nitrate) and cations; size-fractionated colloidal and dissolved trace elements); dissolved organic carbon; and microbial cell and virus-like particle counts. Creator(s): Dore, John; Skidmore, Mark; Hawkings, Jon; Steigmeyer, August; Li, Wei; Barker, Joel; Tranter, Martyn; Priscu, John; Science Team, SALSA Date Created: 2023-02-01 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -149.50134, East: -149.50134, South: -84.640287, North: -84.640287 Temporal Extent(s) Start: 2018-12-27 - End: 2019-01-04 Award(s) NSF 1543537 Version: 1 Related Project(s) Collaborative Research: Subglacial Antarctic Lakes Scientific Access (SALSA): Integrated Study of Carbon Cycling in Hydrologically-active Subglacial Environments References Hawkings, J. R., Skidmore, M. L., Wadham, J. L., Priscu, J. C., Morton, P. L., … Hatton, J. E. (2020). Enhanced trace element mobilization by Earth’s ice sheets. Proceedings of the National Academy of Sciences, 117(50), 31648–31659. (doi:10.1073/pnas.2014378117) Priscu, J., Kalin, J., Winans, J., Campbell, T., Siegfried, M., Skidmore, M., . . . Elsworth, C. (2021). Scientific access into Mercer Subglacial Lake: Scientific objectives, drilling operations and initial observations. Annals of Glaciology, 62(85-86), 340-352. (doi:10.1017/aog.2021.10) Davis, C.L., Venturelli, R.A., Michaud, A.B. et al. Biogeochemical and historical drivers of microbial community composition and structure in sediments from Mercer Subglacial Lake, West Antarctica. ISME COMMUN. 3, 8 (2023). https://doi.org/10.1038/s43705-023-00216-w (doi:10.1038/s43705-023-00216-w) Keywords Antarctica Carbon Cell Counts Geochemistry Glacier Glaciers/ice Sheet Mercer Subglacial Lake Mercer Subglacial Lake Microbes Nutrients SALSA Stable Isotopes Trace Elements West Antarctic Ice Sheet