Hydrographic Cruise: 18SN19940724

Date Start/End:
1994-07-24/1994-09-09
Chief Scientists:
Ship:
Louis S. St-Laurent
Country:
CA
Collections
Aliases
  • (CCHDO) AOS94

Dataset

Files in the Dataset are the data for this cruise. They are updated when new data are submitted or as needed.

Download Entire Dataset Submit Data For This Cruise

Unmerged Data as Received

Files listed here are updates to the dataset which have not been processed yet, they may not be well formatted. Data files listed here usually contain the most up to date versions of the data for specific parameters. If you are unsure of which files to use, stick to the Dataset files above.

These files are not yet in the Dataset.

Filename (Download) Size Date Submitted
AOS_SR96_23.pdf 6.3 MB 2013-12-17
18SN19940724_hy1.csv 352.2 kB 2013-12-17

Data History

  • File Submission cchdo_admin

    AOS_SR96_23.pdf (download) #817de
    Date: 2013-12-17
    Current Status: unprocessed
    Notes
    From CARINA Collection
    

  • File Submission cchdo_admin

    18SN19940724_hy1.csv (download) #6e6db
    Date: 2013-12-17
    Current Status: unprocessed
    Notes
    From CARINA Collection
    

  • Available under 'Files as received' CCHDO Staff

    Date: 2013-12-17
    Data Type: CrsRpt
    Action: Website Update
    Note:
    The following files are now available online under 'Files as received', unprocessed by the CCHDO.
    
    AOS_SR96_23.pdf
    					
  • Available under 'Files as received' CCHDO Staff

    Date: 2013-12-17
    Data Type: BTL
    Action: Website Update
    Note:
    The following files are now available online under 'Files as received', unprocessed by the CCHDO.
    
    18SN19940724_hy1.csv
    					
  • some oxy qual flags changed Dave Muus

    Date: 2010-12-14
    Data Type: CTD
    Action: Website Update
    Note:
    Notes on AO94 CTD data.   Dec 14, 2010. dm   EXPOCODE 18SN19940724
    
    "
    1. Original CTD data from ODF file ao94ctd.tar.gz dated June 20, 2001.
    
    2. All oxygen values were originally flagged "1". Oxygen sensors had  
    many problems due arctic envirnment.
    
    3. Station/Casts 9/1, 13/2, 17/1, 18/1, 26/4, 33/1, 36/1, and 36/2  
    were found to have reasonably good oxygen values and were reflagged  
    "2"s and "3"s by J. Swift and F. Delahoyde.
        All other cast oxygens were reflagged "4"s."
    					
  • see 2009-07-16 note Dave Muus

    Date: 2010-12-02
    Data Type: BTL
    Action: Website Update
    Note:
    "The AO94 bottle modifications described in the 2009-07-16 notes did  
    not get properly updated.
      They were updated today.      EXPOCODE 18SN19940724       D. Muus  
    Dec 2, 2010"
    					
  • data merged, online Dave muus

    Date: 2009-07-16
    Data Type: BTL
    Action: Website Update
    Note:
    Notes on AO94 data changes 090717/dm
    
    EXPOCODE 18SN19940724
    
    1. Merged new Alkalinity values received from Bob Key, CARINA, June  
    30, 2009.
    
        Bob Key note:
        "I recently learned that an arbitrary correction factor had been  
    applied to the alk data in this CARINA file.
        In this version, the correction has been removed and the data are  
    those measured.
        Comparison to other data from the area indicates that the measured  
    alk data are ~24umol/kg too high.
        This correction (24) was NOT applied to the submitted data.'
    
    2. Changed CTDOXY quality flags from "1" to "4".
    
        from ao94do.txt:
        "Please note that the CTD oxygen data for Arctic 94 are not  
    calibrated.
        Working in high latitudes provides extremely harsh conditions for  
    CTD
        dissolved oxygen sensors. Their performance is severely impacted  
    due to the
        extreme cold. In addition, the CTD oxygen sensor was malfuctioning  
    off
        and on throughout the cruise, thus making it extremely difficult  
    if not
        impossible to calibrate the CTD oxygen.  The data reported are the
        preliminary data automatically generated shipboard. They are  
    provided only
        to suggest the gross oxygen features."
    
    3. When checking merged file described above found that CCHDO bottle  
    data on website contains different TCARBN values from the CARINA files.
        Merged CARINA Total Carbon values into CCHDO bottle files.
    
    4. Notes from CARINA file:
        # Hydro: Who - SIO; Status - final
        #       Notes: sample number and bottle parameter names swapped  
    for compliance on merge
        # Nuts/O2: Who - SIO; Status - final
        #       Notes
        # TCO2: Who - P.Jones; Status - final; S Plus - up to date
        #       Notes: CRM?, Method?
        #       Revised data from S. Jutterstrom 6/7/07
        #       See Anderson et al 1998.
        # TA: Who - Who - P.Jones; Status - final
        #       Notes: 2nd QC indicates that these alk data are high by  
    ~24umol/kg
        # CFC: Who - P.Jones; Status - final; S Plus - up to date
        #       Notes: Includes CFC-113 and CCl4
        #       CFC-113 data quite noisy
    					
  • Dave Muus

    Date: 2009-07-08
    Data Type: bottle
    Action: merge ALKALI
    Note:
    Bob Key sent CARINA correction to ALKALI data June 30, 2009.
    					
  • File Submission Key, Robert M.

    18SN19940724_hy1.csv (download) #6e6db
    Date: 2009-06-30
    Current Status: unprocessed
    Notes
    Expocode: 18SN19940724
    Ship: St Laurent
    Woce Line: None
    Note: I recently learned that an arbitrary correction factor had been applied to the alk data in this CARINA file. In this version, the correction has been removed and the data are those measured. Comparison to other data from the area indicates that the measured alk data are ~24umol/kg too high. 
    This correction (24) was NOT applied to the submitted data.
    The attached file can simply replace the one submitted earlier.
    

  • Replaced bottle file Justin Fields

    Date: 2009-06-30
    Data Type: Bottle File
    Action: Replaced
    Note:
    Dr. Key reported: I recently learned that an arbitrary correction factor had been applied to the alk data in this CARINA file. In this version, the correction has been removed and the data are those measured. Comparison to other data from the area indicates that the measured alk data are ~24umol/kg too high.
    This correction (24) was NOT applied to the submitted data.
    					
  • changed expocode in data files Dave Muus

    Date: 2009-04-07
    Data Type: Cruise ID
    Action: Website Updated
    Note:
    Notes on AO94 expocode change   April 7, 2009   D. Muus
    
    1. Changed Expocodes in AO94 bottle files from 18SNAO94 to  
    18SN19940724 to match Expocode used in Website tables.
    
    2. Changed file names to match file name convention for post-Woce  
    cruises.
    					
  • txt & pdf docs online Jerry Kappa

    Date: 2008-11-14
    Data Type: Cruise Report
    Action: Website Updated
    Note:
    The principal sources for this cruise report are:
    1) the Oceanographic Data Facility (ODF) Final Cruise Report (3 July 1998)
    2) the U.S. Army Cold Regions Research and Engineering Laboratory Special Report 96-23
    					
  • Complete BTL file w/ new carbon params Dr. Robert M. Key

    Date: 2007-06-07
    Data Type: ALKALI/TCARBN
    Action: Submitted
    Note:
    Attached please find the updated cruise file the 1994 St Laurent data. Old TCO2 values have been replaced with values you sent earlier today. After replacement I did primary QC on the new TCO2 values. Please note in the README file (attached) that I still need information for the TCO2 and Alk values (was Jones reallly the PI?, CRM?, method?). Also note that I have updated the name (from 18SNA094 to 18SNA199407. This name does not include the sailing day since it is unknown. Also the "SNA" in the name is someone's guess since this vessel does not have an official code (that I could find).
    
    Alex and CCHDO:
    These files are replacements for ones sent with the Jan. CARINA distribution. File name change and new TCO2 values in the data file.