2003 Helo Survey Nutrients and Oxygen Isotope Samples [Christensen, J. and H. Melling]

As part of the Shelf-Basin Interactions (SBI) project, early spring sampling was performed in the eastern area of the SBI study area using aircraft. Flights began on 1 April 2003 and finished on 15 April. During this time, we sampled 42 sites (49 Conductivity Temperature Depth (CTD) casts) on a series of 5 transect lines which bracketed and were parallel to the SBI current meter mooring line located at 152 W longitude. Stations were about 10 km apart along each transect line. A map of the achieved sampling sites is available (file: Sw3loc4a.pdf) and station locations, sampling dates and times are found in the file, Sw3vit-4.csv. At each site, a Seabird CTD (either a SBE-19 or an SBE-25) and Satlantic ISUS nitrate analyzer with a water sampling bottle was deployed through an 8 inch hole augured through the pack-ice. Continuous profiles of pressure, temperature, salinity, and nitrate concentrations were made from the ice hole to either the sediment surface or to about 390 m and were binned into 0.5 dbar bins. Data from the vertical profiles of temperature, salinity, and density are contained in another dataset. Approximately 60 of seawater were collected from up to 8 sampling depths. Waters were subdivided into 30 ml for dissolved nutrient analyses and 20 ml for determination of the isotopic ratio of 18-O/16-O in the sea water. Samples were frozen for return to Maine. Nutrients (nitrate, nitrite, ammonium, inorganic phosphate, and dissolved silica) were determined by autoanalyzer at the Scripps Institute of Oceanography Nutrient Chemistry Laboratory according to World Ocean Circulation Experiment (WOCE) protocols. The oxygen isotope samples were determined at the University of Maine's Stable Isotope Laboratory with standard mean ocean water as standard. The data are in csv format.

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Temporal Range

  • Begin:  2003-04-01T00:00:00Z
    End:  2003-04-15T23:59:59Z


Resource Type dataset
Temporal Range Begin 2003-04-01T00:00:00Z
Temporal Range End 2003-04-15T23:59:59Z
Temporal Resolution N/A
Bounding Box North Lat 73.00000
Bounding Box South Lat 70.00000
Bounding Box West Long -158.00000
Bounding Box East Long -148.00000
Spatial Representation grid
Spatial Resolution N/A
Related Links

Documentation #1 : SW3BOTLE.PDF

Documentation #2 : Sw3loc4a.pdf

Documentation #3 : Sw3vit-4.csv

62.292 : is a companion to dataset 62.311

62.312 : is a companion to dataset 62.311

62.292 : is a companion to dataset 62.311

62.312 : is a companion to dataset 62.311

Additional Information N/A
Resource Format N/A
Standardized Resource Format UNDEFINED FORMAT
Asset Size 1 MB
Legal Constraints


Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email eol-datahelp@ucar.edu
Resource Support Organization UCAR/NCAR - Earth Observing Laboratory
Distributor UCAR/NCAR - Earth Observing Laboratory
Metadata Contact Name EOL Data Support
Metadata Contact Email eol-datahelp@ucar.edu
Metadata Contact Organization UCAR/NCAR - Earth Observing Laboratory

Author John P. Christensen
Humfrey Melling
Publisher UCAR/NCAR - Earth Observing Laboratory
Publication Date 2009-03-11T13:44:38
Digital Object Identifier (DOI) https://doi.org/doi:10.5065/D62B8W34
Alternate Identifier 62.311
Resource Version 1.0
Topic Category oceans
Progress completed
Metadata Date 2021-10-01T16:05:10Z
Metadata Record Identifier edu.ucar.eol::62.311
Metadata Language eng; USA
Suggested Citation John P. Christensen, Humfrey Melling. (2009). 2003 Helo Survey Nutrients and Oxygen Isotope Samples [Christensen, J. and H. Melling]. 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/doi:10.5065/D62B8W34. Accessed 04 December 2023.

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