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EM122 Water Column Sonar Data Collected During HLY1202

Metadata Updated: November 10, 2022

From August 25 to September 27, 2012, the United States Coast Guard Cutter (USCGC) Healy was part of an Extended Continental Shelf Project to determine the limits of the extended continental shelf in the Arctic. On a non-interference basis, a USGS ocean acidification team participated on the cruise to collect baseline water data in the Arctic. The collection of data extended from coastal waters near Barrow, Alaska and southward back to coastal waters near Barrow and on to Dutch Harbor, Alaska. As a consequence, a number of hypotheses were tested and questions asked associated with ocean acidification, including:

  • What is the saturation state for different parts of the basin?
  • What factors drive the saturation state in the different parts of the basin?
  • How does saturation state compare to other regions?
  • How do the carbon fluxes compare in the different parts of the basin?
  • What is the buffering capacity of the water (Revelle factor)?
  • What kind of variability does carbon demonstrate in the Arctic (near shore versus offshore and diurnal)?

During the cruise, underway continuous and discrete water samples were collected, and discrete water samples were collected at stations to document the carbonate chemistry of the Arctic waters and quantify the saturation state of seawater with respect to calcium carbonate. These data are critical for providing baseline information in areas where no data have existed prior and will also be used to test existing models and predict future trends.

Cruise report: http://dmoserv3.whoi.edu/data_docs/OA_Canada_Basin/HEALY1202_FINAL_CRUISE_REPORT-3.pdf

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 June 30, 2022
Metadata Created Date November 10, 2022
Metadata Updated Date November 10, 2022
Reference Date(s) August 26, 2012 (creation), June 30, 2022 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NGDC MGG Sonar Water Column

Additional Metadata

Resource Type Series
Metadata Date June 30, 2022
Metadata Created Date November 10, 2022
Metadata Updated Date November 10, 2022
Reference Date(s) August 26, 2012 (creation), June 30, 2022 (publication)
Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
Contact Email
Guid gov.noaa.ncei:HLY1202_EM122
Access Constraints Cite as: UNH/CCOM. 2022. EM122 Water Column Sonar Data Collected During HLY1202. NOAA National Centers for Environmental Information. https://doi.org/10.25921/5n77-g077 [access date], Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., 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., Resource may not be available for up to one year after initial collection.
Bbox East Long -154.67334
Bbox North Lat 83.50895
Bbox South Lat 71.04528
Bbox West Long -175.99679
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id dcd083b7-b273-40cf-9775-f33d630bdedc
Harvest Source Id ab8b0290-e4db-4a00-89f2-4e427c2054b2
Harvest Source Title NGDC MGG Sonar Water Column
Licence These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., Not subject to copyright protection within the United States.
Lineage Unknown
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-175.99679, 71.04528], [-154.67334, 71.04528], [-154.67334, 83.50895], [-175.99679, 83.50895], [-175.99679, 71.04528]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 2012-08-26T00:00:00
Temporal Extent End 2012-09-24T11:59:59

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