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  • Oceanographic temperature, salinity and oxygen profiles and other measurements from CTD casts by the National Park Service (NPS) and United States Geological Survey (USGS) for the Inventory and Monitoring Program of the Southeast Alaska Network (SEAN) from multiple platforms in Glacier Bay, Alaska from 1993-07-01 to 2019-10-30 (NCEI Accession 0074611)

    Metadata Updated: December 4, 2020

    This dataset contains temperature, salinity, pressure, photosynthetically active radiation (PAR), optical backscatterance (OBS - turbidity), dissolved oxygen, and fluorescence (proxy for chlorophyll-a concentration, an index of primary productivity) profiles, collected from 22 stations that span the length of Glacier Bay proper, from just outside the mouth of the Bay to the heads of both the East and West Arms. Generally mid-channel and equidistant, stations capture a range of depths from shallow sills to deep basins, and are located along the gradient from tidewater glaciers and turbid outwash streams to source waters at Icy Strait. Seven core stations are sampled on nine cruises per year to allow description of intra-annual variation, and all 22 stations are occupied during two of these cruises (July and winter) to allow description of inter-annual variation. This sampling design also allows us to detect long-term seasonal and annual trends, and to describe the current year in a historical context.

    We measure standard oceanographic parameters throughout the water column: temperature, salinity, pressure, photosynthetically active radiation (PAR), optical backscatterance (OBS turbidity), dissolved oxygen, and fluorescence (proxy for chlorophyll-a concentration, an index of primary productivity). The scope and methods are fully explained in the formal monitoring protocol.

    The monitoring program was initiated by the U.S. Geological Survey (USGS) in 1993 and jointly operated each year by USGS and Glacier Bay National Park and Preserve through 2008. In 2009, NPS took on full responsibility for the program. That year, the Southeast Alaska Network initiated a comprehensive update of the program, following recommendations from a 2006 program review, peer-reviewed analyses of the Glacier Bay data, and input from staff at USGS, the National Oceanic and Atmospheric Administration, and several universities. The update resulted in retention of most stations, the addition of one new station, and a temporal shift of the sampling effort away from a quarterly cruise schedule. SEAN also rebuilt the data processing and management system to meet NPS I&M standards and to ensure that all products -from raw and validated field data through the protocol and synthesis reports - are fully validated and web accessible at https://irma.nps.gov/DataStore/Reference/Profile/2168864.

    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 2020-06-15T19:58:09Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date December 4, 2020
    Reference Date(s) August 8, 2011 (publication), March 2, 2020 (revision)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2020-06-15T19:58:09Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date December 4, 2020
    Reference Date(s) August 8, 2011 (publication), March 2, 2020 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0074611
    Access Constraints Cite as: Ziomek, Thomas R; Southeast Alaska Inventory and Monitoring Network (2011). Oceanographic temperature, salinity and oxygen profiles and other measurements from CTD casts by the National Park Service (NPS) and United States Geological Survey (USGS) for the Inventory and Monitoring Program of the Southeast Alaska Network (SEAN) from multiple platforms in Glacier Bay, Alaska from 1993-07-01 to 2019-10-30 (NCEI Accession 0074611). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://accession.nodc.noaa.gov/0074611. 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 -135.113
    Bbox North Lat 59.096
    Bbox South Lat 58.0715
    Bbox West Long -137.092
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://data.nodc.noaa.gov/cgi-bin/gfx?id=gov.noaa.nodc:0074611
    Graphic Preview Type PNG
    Licence accessLevel: Public
    Metadata Language eng
    Metadata Type geospatial
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1993-07-01
    Temporal Extent End 2019-10-30

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