Cruise Information

ExpoCode: 316N19810516

Line: ANAS3

Aliases: TTO NAS LEG 3

Ship/Country: KNORR/USA

Chief Scientists: Armi/SIO

Cruise Dates: Sat May 16, 1981 -Sun Jun 14, 1981

Dataset

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Files As Received

See data history below

No as received files.

Data History

Permalink Date Person Data Type Action Summary
2011-09-02 Kappa, Jerry CrsRpt Website Updated New PDF and Text versions online

          
2006-09-13 Muus, Dave CTD/BTL/SUM Website Updated: From CDIAC Website
NAS Leg 3 notes:

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.
  Added missing NB 69 from PACODF data report SIO Ref. #86-15

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"
  Station 105 Ca 1 Bottle 21 depth given as 3493.
     ODF Report SIO Ref. No. 86-15 depth is 1024.
            "           "          press is 1034.
        Miami tritium 1.190
            & triter  0.065 for this sample not used.

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
      43       4       1    10.0    4.01    0.07     8.0    3.81    0.13    0.20
      43       4       2   408.0    3.76    0.06   403.0    3.60    0.14    0.16
      43       4       3   605.0    3.15    0.07   598.0    2.70    0.10    0.45
      43       4       4   801.0    1.62    0.06   791.0    1.66    0.08   -0.04
      43       4       6  1207.0    0.68    0.05  1191.0    0.67    0.05    0.01
      43       4       7  1311.0    1.08    0.05  1293.0    0.74    0.05    0.34
      43       4       8  1415.0    0.74    0.04  1395.0    0.54    0.05    0.20
      43       4       9  1518.0    0.49    0.04  1497.0    0.46    0.05    0.03
      43       4      10  1619.0    0.56    0.04  1597.0    0.47    0.06    0.09
      43       4      11  1722.0    0.28    0.07  1697.0    0.19    0.05    0.09
      43       4      12  1824.0    0.14    0.04  1798.0    0.23    0.04   -0.09
      43       4      19  4373.0    0.03    0.03  4286.0    0.10    0.04   -0.07
      54       1      11   512.0    4.04    0.11   500.0    3.55    0.12    0.49
      54       1      12   612.0    4.43    0.11   598.0    3.60    0.12    0.83
      54       1      13   712.0    3.82    0.11   698.0    2.93    0.11    0.89
      54       1      14   811.0    3.19    0.10   797.0    2.42    0.10    0.77
      54       1      15   911.0    3.28    0.10   896.0    2.28    0.10    1.00
      54       1      16  1010.0    3.22    0.10   996.0    2.21    0.10    1.01
      54       1      17  1109.0    2.93    0.09  1095.0    2.70    0.12    0.23
      54       1      18  1209.0    2.90    0.05  1193.0    2.34    0.08    0.56
      54       1      19  1309.0    2.41    0.05  1292.0    1.90    0.09    0.51
      54       1      21  1503.0    1.08    0.04  1484.0    0.81    0.07    0.27
      54       1      22  1590.0    0.62    0.04  1569.0    0.39    0.05    0.23
      54       1      23  1781.0    0.27    0.03  1759.0    0.28    0.05   -0.01
      54       1      24  1973.0    0.05    0.03  1950.0    0.11    0.05   -0.06
      55       1      14  1117.0    3.02    0.10  1101.0    2.50    0.11    0.52
      99       2      14  1628.0    0.63    0.07  1607.0    0.64    0.05   -0.01
     109       2       1     4.0    4.49    0.05     2.0    4.18    0.13    0.31
     109       2      17  2008.0    0.30    0.02  1977.0    0.43    0.06   -0.13



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

      51       1       9  1018.0   -9.00  1008.0    0.97    0.07  2
      52       2      12  1122.0   -9.00  1104.0    0.85    0.07  2
      52       2      14  1324.0   -9.00  1303.0    0.59    0.00  2
      52       2      16  1627.0   -9.00  1602.0    0.27    0.05  2
      52       2      18  2036.0   -9.00  2003.0    0.01    0.05  2
      53       1      11  1010.0   -9.00   995.0    1.81    0.07  2
      54       1      20  1407.0   -9.00  1389.0    1.55    0.08  2
      56       1      23   960.0   -9.00   950.0    2.04    0.09  2
      57       1      20  1012.0   -9.00  1000.0    1.07    0.08  2
      68       2       5   393.0   -9.00   384.0    3.94    0.11  2
      68       2       7   587.0   -9.00   575.0    3.55    0.12  2
      68       2       9   780.0   -9.00   766.0    1.69    0.07  2
      68       2      11   984.0   -9.00   968.0    1.02    0.07  2
      68       2      13  1303.0   -9.00  1283.0    0.68    0.05  2
      68       2      15  1627.0   -9.00  1603.0    0.27    0.05  2
      68       2      17  2020.0   -9.00  1992.0   -0.11    0.05  2
      71       2       5   416.0   -9.00   406.0    4.16    0.14  2
      71       2       7   616.0   -9.00   604.0    3.08    0.10  2
      71       2       9   813.0   -9.00   798.0    1.47    0.06  2
      71       2      13  1319.0   -9.00  1299.0    0.27    0.05  2
      71       2      15  1624.0   -9.00  1601.0    0.07    0.05  2
      77       1      10   895.0   -9.00   885.0    0.66    0.06  2
      77       1      12  1148.0   -9.00  1135.0    0.43    0.06  2
      80       2       2   113.0   -9.00   105.0    4.26    0.12  2
      80       2       4   314.0   -9.00   304.0    4.07    0.13  2
      80       2       6   514.0   -9.00   501.0    3.71    0.22  2
      80       2       8   711.0   -9.00   696.0    1.45    0.08  2
      80       2      10   913.0   -9.00   895.0    0.45    0.06  2
      80       2      12  1118.0   -9.00  1099.0    0.32    0.05  2
      80       2      14  1321.0   -9.00  1299.0    0.25    0.05  2
      80       2      16  1522.0   -9.00  1498.0    0.08    0.05  2
      87       1       8  1117.0   -9.00  1097.0    0.99    0.05  2
      89       1      17  1111.0   -9.00  1092.0    2.13    0.09  2
      90       1      16  1116.0   -9.00  1097.0    2.24    0.10  2
      90       1      18  1299.0   -9.00  1279.0    2.08    0.08  2
      91       1      17  1013.0   -9.00   997.0    2.47    0.08  2
      91       1      19  1218.0   -9.00  1200.0    2.18    0.09  2
      93       1      17  1119.0   -9.00  1102.0    1.96    0.08  2
      94       1       9   408.0   -9.00   400.0    3.88    0.12  2
      94       1      11   610.0   -9.00   598.0    3.29    0.12  2
      94       1      13   814.0   -9.00   799.0    2.75    0.10  2
      94       1      15  1016.0   -9.00   999.0    2.47    0.09  2
      94       1      17  1220.0   -9.00  1200.0    2.22    0.10  2
      94       1      19  1425.0   -9.00  1402.0    1.78    0.09  2
      94       1      21  1627.0   -9.00  1601.0    0.58    0.06  2
      96       1       9  1022.0   -9.00  1004.0    0.78    0.06  2
      98       1       2   110.0   -9.00   107.0    3.82    0.12  2
      98       1       4   307.0   -9.00   303.0    4.04    0.13  2
      98       1       6   505.0   -9.00   498.0    3.70    0.13  2
      98       1       8   699.0   -9.00   690.0    2.94    0.10  2
      98       1      10  1007.0   -9.00   988.0    1.38    0.07  2
      98       1      12  1511.0   -9.00  1486.0    0.61    0.06  2
      99       2       1     7.0   -9.00     1.0    4.12    0.13  2
      99       2       3   418.0   -9.00   411.0    3.93    0.13  2
      99       2       5   618.0   -9.00   610.0    4.08    0.13  2
      99       2       7   820.0   -9.00   810.0    2.25    0.09  2
      99       2       9  1022.0   -9.00  1010.0    2.44    0.09  2
      99       2      11  1225.0   -9.00  1210.0    1.57    0.08  2
      99       2      13  1426.0   -9.00  1408.0    1.26    0.07  2
     102       1      16   904.0   -9.00   891.0    2.53    0.11  2
     102       1      18  1311.0   -9.00  1289.0    1.55    0.08  2
     104       1      14   715.0   -9.00   699.0    2.80    0.11  2
     104       1      16   916.0   -9.00   898.0    2.83    0.11  2
     104       1      18  1118.0   -9.00  1099.0    2.15    0.09  2
     104       1      20  1323.0   -9.00  1302.0    1.63    0.07  2
     104       1      22  1626.0   -9.00  1602.0    0.86    0.06  2
     106       1       7  1012.0   -9.00   999.0    1.48    0.07  2
     106       1       9  1215.0   -9.00  1200.0    1.12    0.07  2
     106       1      11  1418.0   -9.00  1400.0    0.74    0.05  2
     107       1      10  1111.0   -9.00  1103.0    1.23    0.06  2
     109       2       2   114.0   -9.00   106.0    4.45    0.14  2
     109       2       4   316.0   -9.00   304.0    4.06    0.13  2
     109       2       6   517.0   -9.00   503.0    3.84    0.11  2
     109       2       8   718.0   -9.00   702.0    2.70    0.11  2
     109       2      10   921.0   -9.00   903.0    1.46    0.06  2
     109       2      12  1123.0   -9.00  1103.0    1.31    0.06  2
     109       2      14  1428.0   -9.00  1404.0    0.85    0.05  2
     109       2      16  1828.0   -9.00  1800.0    1.19    0.07  2

Original CTD data from NODC Mar 8, 2006  ocldb1141845224.17339.CTD.csv.gz
                                         ocldb1141845224.17339.CTD2.csv.gz
                                         ocldb1141845224.17339.CTD3.csv.gz
  No CTD data for following casts: Station  Cast  Max Press
                                      46      1        2944
                                      63      1        1703
                                      64      1        2012
                                      65      1        1993
                                      67      1        1706
                                      75      1        1783
                                      83      1        4926
                                      93      1        2507
                                      99      2        5405
                                     100      1        1997
                                     101      1        1993
                                     102      1        3148
                                     103      3        2013
                                     105      1        1975
                                     109      2        4988
1989-08-31 Jenkins, William He/Tr Website Updated: From CDIAC Website
                      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.
1987-04-07 Unknown, Unknown DELC14/TRITIJM LV Only-not merged From CDIAC Website
                 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.