Hydrographic Cruise: 316N19810821

Date Start/End:
1981-08-21/1981-09-17
Chief Scientist:
Ship:
KNORR
Country:
US
Collections
Aliases
  • (CCHDO) TTO NAS LEG 6

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

Data History

  • New Text version online Jerry Kappa

    Date: 2012-04-25
    Data Type: CrsRpt
    Action: Website Updated
  • New PDF version online Jerry Kappa

    Date: 2011-09-08
    Data Type: CrsRpt
    Action: Website Updated
  • From CDIAC Website Dave Muus

    Date: 2006-02-10
    Data Type: CTD/BTL/SUM
    Action: Website Updated:
    Note:
    NAS notes for Leg6:
    
    Original bottle data from CDIAC website Feb 10, 2006.
       http://cdiac.ornl.gov/oceans/datmet.html
            TTO_1981_recalc_DIC_ALK.csv
       Contains pressure, temperature, salinity, nutrients, alkalinity and total carbon.
       No machine readable data available from SIO/ODF.
    
    Helium tritium merge file:   nas_he3-tu.orig.Z  from WHOI P.I.: W.J. Jenkins
      Received from J.L.Reid office Jan 19, 2006.
    
    Tritium merge file:  nas1-7.c14.orig.Z  Believed to be from Univ. of Miami; P.I.: H.G Ostlund
      Received from J.L.Reid office Jan 19, 2006. 
      Note with data says: "TU in old scale at time of sampling"
    
    Tritium samples taken by both WHOI and U. of Miami. WHOI values used if available.
    U. of Miami values used if WHOI values not available. If both WHOI and U. of Miami
    tritium values available for the same sample the WHOI value is flagged "6" and the
    U. of Miami value is shown on the following list:
    
      STNNBR  CASTNO  BTLNBR  CTDPRS  TRITUM  TRITER   DEPTH  TRITUM  TRITER  W-M Tr
                                DBAR  W   TU  W   TU       M  MoldTU  MoldTU  diffTU
         173       1       1    15.0    5.22    0.12    13.0    4.27    0.14    0.95
         173       1       5   195.0    4.32    0.11   192.0    3.94    0.13    0.38
         173       1       9   570.0    3.97    0.10   561.0    4.12    0.17   -0.15
         173       1      12   963.0    3.94    0.10   948.0    3.43    0.11    0.51
         173       1      14  1065.0    4.16    0.10  1049.0    3.32    0.14    0.84
         173       1      20  1701.0    2.26    0.08  1675.0    2.02    0.11    0.24
         179       1       1    13.0    4.63    0.05    11.0    4.61    0.15    0.02
         179       1       6   409.0    4.35    0.05   403.0    4.03    0.10    0.32
         179       1      12  1205.0    2.93    0.04  1186.0    2.62    0.10    0.31
         179       1      19  2719.0    2.96    0.04  2673.0    2.85    0.09    0.11
         179       1      24  2966.0    3.38    0.05  2915.0    2.89    0.10    0.49
         181       1      15  1678.0    2.36    0.04  1651.0    2.05    0.10    0.31
    
    
    
    List of U. of Miami tritium values where no WHOI value available: 
    
                              *****WHOI*****  ********MIAMI*********
      STNNBR  CASTNO  BTLNBR  CTDPRS  TRITUM   DEPTH  TRITUM  TRITER Q1
                                DBAR      TU       M  old TU  old TU
         173       1       6   286.0   -9.00   282.0    3.94    0.13  2
         173       1      11   813.0   -9.00   800.0    3.53    0.15  2
         173       1      16  1166.0   -9.00  1148.0    3.78    0.10  2
         173       1      21  1901.0   -9.00  1872.0    1.77    0.09  2
         181       1      10   810.0   -9.00   796.0    3.33    0.14  2
    
    
    Original CTD data from NODC Mar 8, 2006  ocldb1141845224.17339.CTD4.csv.gz
                                             ocldb1141845224.17339.CTD5.csv.gz
      No CTD data for following casts: Station  Cast  Max Press
                                         183      1     1951
                                         184      1     1644
                                         189      3     3006
                                         198      1     1429
                                         211      2     4700
                                         212      1     3622
    
      NODC CTD data have no values for negative temperatures. NODC negative temps shown as ---.---
        Stations with negative temps this leg are 185, 186, 199, 200 and 219.
    
      CTD data for these stations were obtained from Sarilee Anderson (PORD/SIO) on Oct 18, 2006,
        in a file named tto_nas.ctd.  Positive temperature data appear to be the same on both
        NODC and Anderson files.
        
      The data originator (ODF/SIO) has no ctd data available. 9-track tapes unreadable.
    					
  • From CDIAC Website William Jenkins

    Date: 1989-08-31
    Data Type: He/Tr
    Action: Website Updated:
    Note:
                          WHOI Helium Isotope Lab
                   Data Release #3.0   August 31, 1989
    
                Tritium and 3He from TTO-NAS and NATS 1981
    
    Dear Colleague,
    
        The files on this disk (TTO.DAT and NAT.DAT) are a listing of
    tritium, helium and hydrographic data taken on two expeditions which
    took place in the summer of 1981.  The TTO North Atlantic Survey took
    place on the KNORR on seven legs with a variety of chief scientists
    (see the data report published by Scripps Institution of  Oceanography,
    ref SIO No. 86-15).  The NATS (North Atlantic Tracer Section)  data
    (AT-109, legs 1-3) were taken with C.Wunsch, H.Stommel and D.Roemmich
    as chief scientists.  We are indebted to all for their help.   This
    work was supported by the National Science Foundation, grants No.
    OCE79-21378 and OCE81-17998.  You are free to use this data as you see
    fit, but an acknowledgement of its source would be appreciated in any
    resulting publications.
    
        There are a total of 3235 tritium and 2893 helium measurements.  
    The data are organized as simple ascii files with two kinds of records
    in a repeating pattern: a station header record, followed by a  number
    of depth records.  Ancillary hydrographic information is included  for
    your convenience only, and we make no claim as to its accuracy.  Cast
    and bottle numbers are included to permit referencing the actual
    hydrographic data released by the PACODF group.  We present the
    helium-3 data in two  "units" for use at your own discretion.  Null
    values are indicated as -99. We have made every attempt to ensure that
    there are no errors in the data  (eg due to mis-labelling), but if you
    find any "fliers", please notify us (telemail W.Jenkins) of the cast
    and bottle number and what the problem  appears to be, and we will
    investigate.  Don't forget to include the data release number.
    
    
    The data can be read by the following fortran statements (contained in the
    file "test.for"):
    
    	open(unit=3,file='TTO.DAT',status='old')
     100	read(3,110,end=300)ista,ndeps,stalat,stalon,id,im,iy
     110	format(2i3,2f8.3,3i3)
    	do 200 i=1,ndeps
    	    read(3,120)icast,ibott,pres,temp,salt,oxy,trit,sigt,he3,del3,che
     120	    format(2i2,f6.0,2f8.3,f5.0,3f7.2,f7.1,f7.2)
     200	  continue
    	go to 100
    c
    c   .................................
    c
     300	close(unit=3)
    c
    c
    
    The program test.for has been succesfully used under both SUN OS v4.0
    and  Microsoft (MSDOS) v5.0 fortran compilers.
    
    The variables read are
    
        STATION HEADER:
    		ista	station number
    		ndeps	number of depths to be read
    		stalat	station latitude (N positive) in decimal degrees
    		stalon	station longitude (W positive) in dec. degrees
    		id,im,iy   station date (day, month, year)
        DEPTH RECORDS:
    		icast	cast number
    		ibott	bottle number
    		pres	pressure in decibars
    		temp	in situ temperature (deg. C)
    		salt	salinity (PSU)
    		oxygen	dissolved oxygen (uM/Kg)
    		trit	tritium (T.U.) at time of station
    		sigt	uncertainty in tritium (T.U.)
    		he3	excess helium-3 (T.U.)*
    		del3	helium isotope ratio anomaly (permil)**
    		che	helium concentration (ncc/g)***
    
    	* the excess helium-3 is computed according to Jenkins (1987).
    		Uncertainty is .035 T.U.
    	** relative to the atmospheric ratio.  Uncertainty is 1.5 permil.
    	*** uncertainty is 0.1 ncc/g [ncc = 10^-9 cc(STP)].
    
        
        The data reported here are the result of the work of a number of
    people (both present and past) in the Helium Isotope Laboratory.  They are
    
    	Scot P. Birdwhistel
    	Richard D. Boudreau
    	Marcia W. Davis (Pratt)
    	Philip A. DesJardin
    	Peggy A. Dickinson (O'Brien)
    	Heidi Hinds
    	William J. Jenkins
    	Danuta G. Kaminski
    	Dempsey E. Lott III
    	Gary Newhart
    
    
    References:
              Jenkins, W.J. (1987) 3H and 3He in the Beta Triangle: observations 
                    of gyre ventilation and oxygen utilization rates.  J. Phys.
    		Oceanogr. 17, 763-783.
              Lott, D.E. and W.J. Jenkins (1984) An automated cryogenic charcoal
    		trap system for helium isotope mass spectrometry. Rev. Sci.
    		Instrum. 55, 1982-1988.
    					
  • From CDIAC Website Unknown Unknown

    Date: 1987-04-07
    Data Type: DELC14/TRITIUM
    Action: LV Only-not merged
    Note:
                     TTO NAS TAS TRITIUM and C14 DATA              87/04/07       
                                DOS DISK                                          
                                                                                  
         The files on the floppy disk include only samples on which Cl4 or T (or  
    both) have been measured.  Missing data are indicated by blanks.  Files are   
    ASCII characters, forming integers of the actual numbers, multiplied by FACTOR
    below.                                                                        
                                                                                  
         File format is DOS, as it comes on the IBM PC.  One long string of       
    characters as follows:                                                        
                                                                                  
    BYTES   WIDTH   DATA, (right justified)                                 FACTOR
                                                                                  
    1-6     6       Station number                                              1 
    7-12    6       Cast, Niskin bottle number                                  1 
    13-18   6       Depth in m or pressure in dB, supplied by PACODF            1 
    19-24   6       Potential temp., see pg. 5 in Data Report 15             1000 
    25-30   6       Salinity, in S-units, supplied by PACODF                 1000 
    31-36   6       Sigma Theta, see pg.5 in Data Report 15                  1000 
    37-42   6       TU in old scale at time of sampling                      1000 
    43-48   6       Error, 1 Sigma, in TU                                    1000 
    49-54   6       TCO2 in  moles/kg. Note: On TTO there are TCO2           1000 
                      data available on more samples, not listed here             
    55-60   6       dC13 (o/oo) vs PDB, of our CO2 preparations              1000 
    61-68   8       DC14 in internationally adopted scale                    1000 
    69-72   4       Gerard sampler #                                            1 
    73-78   6       Available                                                 -   
    79      1       CR                                                        -   
    80      1       LF                                                        -   
                                                                                  
         The Tritium Lab is responsible only for the TU, eTU,dC13 and DC14 data to
    be accurate.  For up-to-date hydrography, TCO2, and other parameters, please  
    contact Scripps Data Facility.