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    • Turbidity, cloud amount/frequency and other data from ALPHA HELIX in the Gulf of Alaska and Bering Sea from 1989-10-04 to 1990-06-26 (NCEI Accession 9100032)

    Metadata Updated: February 1, 2026

    The Conductivity, Temperature and Depth (CTD) and Benthic data were collected from Gulf of Alaska and Bering Sea using NOAA Ship Alpha Helix. The data was collected over a period spanning from October 4, 1989 to June 26, 1990. Data was submitted on two tapes by Institute of Marine Science, University of Alaska, Fairbanks, AK. Data has been processed and is available in F022-CTD-Hi Resolution and F132-Benthic-Organisms file format of NODC.

    The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.

    The F132 format contains data from field sampling or surveys of bottom dwelling marine organisms. The data provide information on species abundance, distribution, and biomass; they may have been collected by point sampling (grab or core), by tow (dredge, trawl or net), by photographic surveys, or by other methods. Cruise information such as vessel, start and end dates, investigator, and institution/agency; station numbers, positions and times; and equipment and methods are reported for each survey. Environmental data reported at each sampling site may include meteorological and sea surface conditions; surface and bottom temperature, salinity and dissolved oxygen; and sediment characteristics. Number of individual organisms and total weight of organisms is reported for each species. A text record is available for comments.

    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.

    Downloads & Resources

    Dates

    Metadata Date 2024-10-15T15:20:29Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date February 1, 2026
    Reference Date(s) November 19, 2002 (publication), February 14, 2023 (revision), 1991 (creation)
    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 2024-10-15T15:20:29Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date February 1, 2026
    Reference Date(s) November 19, 2002 (publication), February 14, 2023 (revision), 1991 (creation)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:9100032
    Access Constraints Cite as: University of Alaska Fairbanks, Institute of Marine Science (2002). Turbidity, cloud amount/frequency and other data from ALPHA HELIX in the Gulf of Alaska and Bering Sea from 1989-10-04 to 1990-06-26 (NCEI Accession 9100032). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/9100032. 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 -146.33
    Bbox North Lat 63.98
    Bbox South Lat 54.08
    Bbox West Long -179.24
    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:9100032
    Graphic Preview Type PNG
    Harvest Object Id ecd89bce-138e-43dd-bea3-6b44de4b0f86
    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": [[[-179.24, 54.08], [-146.33, 54.08], [-146.33, 63.98], [-179.24, 63.98], [-179.24, 54.08]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1989-10-04
    Temporal Extent End 1990-06-26

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