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    • Discrete profile and surface underway measurements of carbonate chemistry and others hydrographic and chemical parameters, collected during R/V Neeskay and R/V Osprey cruises in Lake Michigan from 2017-05-01 to 2022-04-30 (NCEI Accession 0259963)

    Metadata Updated: November 1, 2023

    This NCEI Accessions consists of discrete profile and surface underway measurements of carbonate chemistry and others hydrographic and chemical parameters, collected during R/V Neeskay and R/V Osprey cruises in Lake Michigan from 2017-05-01 to 2022-04-30. Water chemistry and conductivity-temperature-depth (CTD) profiles were measured at several stations in Lake Michigan, ranging in depth from 10 to 55 m, in a region northeast of Milwaukee Harbor. Measurements included soluble reactive phosphorus, total dissolved phosphorus, particulate phosphorus, chlorophyll-a, the concentrations and stable isotope ratios of particulate carbon and particulate nitrogen, dissolved carbon dioxide, dissolved total inorganic carbon, and dissolved organic carbon. In addition, continuous lake surface and atmospheric CO2 data collected in 2019 and 2021 on a Lake Michigan transect between Milwaukee, WI and Muskegon MI. Measurements were made with a CO2 monitoring system mounted on a high-speed ferry that crosses the lake 4 to 6 times daily between May and October. The monitoring system consists of a "wet" box which includes a peristaltic pump that draws water from the ship's sea chest and an equilibrator in which dissolved gases are equilibrated with a recirculating air flow. The air is pumped through a desiccant to remove moisture, after which it flows to a "dry" box where it passes through an infrared gas analyzer. A similar system, without the peristaltic pump or equilibrator, is mounted near the bow of the ship to record atmospheric CO2 concentration. These chemical measurements have several applications, including: 1) Constructing an annual carbon and nutrient budget for the water column, which is used along with direct measurements of quagga mussel nutrient recycling to assess the role of invasive quagga mussels in the lake's carbon and nutrient cycles; 2) When combined with separate measurements of the vertical structure of water density and currents, to quantify vertical fluxes of dissolved nutrients and inorganic carbon, to determine how carbon and nutrient recycling by profundal quagga mussels may affect plankton production in the euphotic zone; 3) The calibration and validation of physical / biogeochemical models used to better understand how invasive quagga mussel have altered energy flow and nutrient dynamics in the Great Lakes, and guide management decisions with regard to nutrients and fish stocking.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date 2023-09-20T12:31:20Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date November 1, 2023
    Reference Date(s) September 29, 2022 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2023-09-20T12:31:20Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date November 1, 2023
    Reference Date(s) September 29, 2022 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0259963
    Access Constraints Cite as: Bootsma, Harvey A.; Liao, Qian; Troy, Cary D. (2022). Discrete profile and surface underway measurements of carbonate chemistry and others hydrographic and chemical parameters, collected during R/V Neeskay and R/V Osprey cruises in Lake Michigan from 2017-05-01 to 2022-04-30 (NCEI Accession 0259963). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/22pv-gj51. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -86.3447
    Bbox North Lat 44.2266
    Bbox South Lat 42.985
    Bbox West Long -87.8682
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0259963
    Graphic Preview Type PNG
    Harvest Object Id 5ae50d06-e8d0-40c9-89a8-84c598952e46
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-87.8682, 42.985], [-86.3447, 42.985], [-86.3447, 44.2266], [-87.8682, 44.2266], [-87.8682, 42.985]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2017-05-01
    Temporal Extent End 2022-04-30

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