EK60 Water Column Sonar Data Collected During AR21

Metadata Updated: November 12, 2020

Cruise AR21 on RV Neil Armstrong (EK60). This cruise is the fourth cruise to the Irminger Sea Global Node of the National Science Foundation’s Ocean Observatories Initiative (OOI; http://www.oceanobservatories.org). The Irminger Sea Global Node includes an array of four moorings and a combination of patrol and profiling gliders deployed off the southeast tip of Greenland, close to 39°W, 60°N. The location is one characterized by strong air-sea interaction and winter-time water mass formation. It is also a location at an important location of the large-scale global thermohaline circulation where freshening of the water column has been observed, and the data from the array will contribute to improved understanding of the impact of climate variability and change on the physics, chemistry, and biology of the ocean. The combination of the moored array and the gliders will enable investigation of the role of processes at mesoscale and submesoscale horizontal length scales. At the same time, the moored array and gliders will sample the full water column, from the sea floor to the sea surface and the surface mooring will provide unique new observations of surface meteorology and air-sea fluxes. This Irminger Sea Global Node deployment cruise (Irminger-4) has the following primary objectives: deployment of a new Surface Mooring (GI01SUMO), deployment of a new Profiler Mooring (GI02HYPM), deployment of two new Flanking Moorings (GI03FLMA, GI03FLMB), deployment of new Irminger Sea mobile assets (GI05MOAS) with the deployment of gliders tasked to patrol within and around the moored array, recovery of the Surface Mooring, Profiler Mooring, and Flanking Moorings set in July 2016, and CTD casts with water sampling at both for instrument calibration and to further characterize the region of the mooring sites. The intent is to deploy the fourth set of moorings before recovering the previously deployed third set of moorings. This is done to obtain data sets invaluable to the process of intercalibrating the moored instrumentation. Because of this and because the intent is to have future mooring operations to be conducted in close proximity to moorings in the water, the site locations for both the first and second deployments were identified during the bathymetric survey on the first cruise in September 2014.

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 August 14, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) July 29, 2017 (creation), November 30, 2018 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NGDC MGG Sonar Water Column

Additional Metadata

Resource Type Series
Metadata Date August 14, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) July 29, 2017 (creation), November 30, 2018 (publication)
Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
Contact Email
Guid gov.noaa.ngdc.mgg.wcd:AR21_EK60
Access Constraints Cite as: Rolling Deck to Repository (R2R). 2017. 'EK60 Water Column Sonar Data Collected During AR21'. NOAA National Centers for Environmental Information. [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 -39.32088
Bbox North Lat 59.98422
Bbox South Lat 42.49156
Bbox West Long -66.08391
Coupled Resource
Frequency Of Update notPlanned
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.
Metadata Language eng; USA
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 2017-07-29T13:52:56
Temporal Extent End 2017-08-11T09:16:06

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